Two new species of the genus Cerithiopsis Forbes & Hanley, 1850 (Gastropoda : Cerithiopsidae) from Brazil

2008·5.4 MB·English

by  Raquel Medeiros Andrade Figueira

THE VELIGER
© CMS, Inc., 2007
The Veliger 50(2):72-80 (June 20, 2008)
Two New Species of the Genus Cerithiopsis Forbes & Hanley, 1850
(Gastropoda: Cerithiopsidae) from Brazil
RAQUEL MEDEIROS ANDRADE FIGUEIRA
Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro
(e-mail: [email protected])
ALEXANDRE DIAS PIMENTA
Departamento de Invertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro
(e-mail: adpimenta@,yahoo.com.br)
Abstract. Thispaperpresentsareviewofthetaxonomyofthespeciesbelongingtothegenus CerithiopsisForbes&
Hanley, 1850 from Brazil, that are characterized by the two adapical rows ofnodules in each teleoconch whorl fused
together on the initial teleoconch whorls, then becoming gradually separated on the subsequent ones. The following
speciesarereportedforthefirsttimefrom Braziliancoast: C.fusiformis(C. B. Adams, 1850),originallydescribedfrom
Jamaica; and C. aimen Rolan & Espinosa, 1995 and C. priegueiRolan & Espinosa, 1995, both originally from Cuba.
Two new species are described: Cerithiopsis balaustium and Cerithiopsis capixaba, both from the northeast-southeast
coast ofBrazil. Thefive specieshaveminordifferences in shell shapeand sculpturepattern, beingeasilydistinguished
bytheprotoconch sculpture: in C. fusiformisit issmooth,witha thinspiral keel in themiddle ontwoabapicalwhorls;
C. aimen has a similar smooth protoconch, but lacking any spiral keel; C. prieguei bears two thin spiral cords on
adapicalwhorls,connectedbythinaxial riblets,also,thesuturalareaoftheprotoconchismicroscopicallygranulated;
C. balaustiumhasa smallprotoconch with small axial ribletsthatdonottouch the suture; C. capixabahasanelongate
protoconch with initial whorls finely granulated and subsequent ones with axial riblets that connect the suture.
Key Words: Cerithiopsidae, Cerithiopsis, Brazil, South America, taxonomy.
INTRODUCTION
radulae, the analysis ofwhich seems to be essential for
The genus Cerithiopsis Forbes & Hanley, 1850 is p&roEpesrpisnuopsraasp(e1c9i9f5i)c calnasdsifRioclatainoneitn talh.is(g2r0o0u7p). dRiosltiann-
contains marine microgastropods belonging to the
family Cerithiopsidae H. & A. Adams, 1853. Along guished, for working purposes, "groups of species"
based on color patterns (e.g., brown colour species,
with the family Triphoridae Gray, 1847, Cerithiopsidae
banded and variable colored species).
composes the largest part of the superfamily Triphor-
oidea Gray, 1847 (Ponder & Waren, 1988; Ponder, Whereas most species of this genus have three rows
ofnodules, equidistant or almost equidistant along the
1998).
entire teleoconch, some species have the two adapical
The characteristics used in the taxonomy and
rows ofnodules fused together on the first whorls and
identification of species of Cerithiopsis, particularly
becoming gradually separated on the subsequent ones,
the sculpture pattern, are not easily observed, and worn as described for Cerithiopsisfusiformis (C. B. Adams,
shells or shells lacking the protoconch are often
1850), a widely distributed species in the western
impossible to identify (Laseron, 1951; Marshall, 1978). Atlantic. During studies on the taxonomy of Brazilian
claTshsiefriecatisionnoofcoCenrsietnhsioupssics.onSceormneinagutthhoerssu(per.ga.s,peJcaiyfi&c cChearriatchtieorpissitdcase,owfetfeoluenodcosncohmesschuellpltsurteh,atbeuxthibciatnsucbhe
Drivas, 2002, following Marshall, 1978) restricted the
distinguished by other traits. This paper presents the
concept of the genus, adopting other generic names,
description of two new species from Brazil, as well as
such as Joculator Hedley, 1909, Horologica Laseron,
1956, Mendax Finlay, 1927 and Prolixodens Marshall, the first, local occurrence of three other species that
were originally described from the Caribbean region.
1978; Ode (1989) also considered Joculator, but at the
subgeneric level. Herein, we adopted Cerithiopsis in a MATERIAL AND METHODS
broad sense, following Rolan & Espinosa (1995) and
Rolanet al. (2007). Weavoided the use ofothergeneric Thematerial used forthispaperwascollectedin several
names, because we did not have access to soft parts or localities along the Brazilian coastline, and is listed
&
R. Figueira A. Pimenta, 2007 Page 73
separately for each species, with the number ofshells in Material examined: The holotype and: -Pernambuco:
brackets. The study was based entirely on conchologi- MNHN, [2] Enseada dos Corais, 1984-1989, P.
cal analyses. The terminology and characters used to Maestrati col.; -Bahia: IBUFRJ 12906, [2] Baia de
identifythe specieswerebasedon Laseron (1951, 1956), Todos os Santos, sta 56vv, 12/iv/1997; IBUFRJ 12907,
Marshall (1978), Rolan & Espinosa (1995) and Jay & [1] Baia de Todos os Santos, sta Ilvv, 22/iv/1997;
Drivas (2002). IBUFRJ 12908, [18] Baia deTodos os Santos, sta 54w,
Abbreviations used: MCZ: Museum ofComparative 29/V/1997; IBUFRJ 12909, [9] Baia de Todos os
Zoology, Cambridge; MNCN: Museo Nacional de Santos, sta 55vv, 03/iv/1997; IBUFRJ 13887, [1] Baia
Ciencias Naturales, Madrid; IBUFRJ: Instituto de de Todos os Santos, 5/iv/1997; MORG 48812, [3] R.
Biologia, Universidade Federal do Rio de Janeiro, Rio Areia, Abrolhos, i/1985, Eq. MORG coll.; MORG
de Janeiro; MNHN: Museum National d'Histoire 48811, [1] I. Guarita, Abrolhos, ii/1987, A. Silveira and
NFaetduerreallled,oParRiiso; MdNeRJJan:eiMruo,seRuioNadceionJaanle/iUrnoi;veMrOsiRdGad:e LR.EVLaIuZrEinEosctoallc.;65-(E1s8pi5r3i't3o7"SSa,nt3o9:°0I6B'2U3F"RW,J51029m0)5,,2[51/]
Museu Oceanografico "Eliezer de Carvalho Rios" da iv/1996, NOAN coll.; IBUFRJ 9515, [1] REVIZEE V
Fundacao Oceanografica do Rio Grande, Rio Grande; sta c64 (19°17'42"S, 38°02'06"W, 63 m), 25/iv/1996,
MZSP: Museu de Zoologia da Universidade de Sao NOAN coll.; IBUFRJ 12903, [12] REVIZEE sta vv38
Paulo, Sao Paulo; REVIZEE: Recursos Vivos da Zona (19°44'S, 38°24'W, 71.4 m), 29/ii/1996, NOAN coll.;
NEcOoAnNom:icaNavExicolusOicveaa;nostgar:afcioclloect"iAonntasrteasti;o"n nNuOmWbeBr:; MNRJ 11887, [3] REVIZEENOstAaNvv38 (1M9°O44R'SG,
38°24'W, 71.4 m), 29/ii/1996, coll.;
Navio Oceanografico "Professor Wladimir Besnard." 48816, [39] Aracruz, l/viii/1988, Vera Abud coll.;
IBUFRJ 12904, [6] REVIZEE sta c62 (20°30'02"S,
SYSTEMATICS 37°28'51"W, 96 m), 25/iv/1996, NOAN coll.; IBUFRJ
REVIZEE V
Family Cerithiopsidae H. & A. Adams, 1853 31700°4199,'06"[1W], 88 m), 24/iv/1996,sNtaOAcN61coll(.2;0°I3B0'U3F8"RSJ,
Subfamily Cerithiopsinae H. & A. Adams, 1853 12900, [1] REVIZEE sta vv21 (20°38'S, 40°00'W,
NOAN
33 m), 26/H/1996, coll.; -Rio de Janeiro:
Genus Cerithiopsis Forbes & Hanley, 1850 IBUFRJ 13665, [3] Praia da Figueira, Angra dos Reis,
MORG
& 1998, C. Alvarenga coll.; 41970, [1] offMacae,
Cerithiopsis Forbes Hanley, 1850. Type-species
sta 3207, 12/iv/1997, Oceanographic Vessel "Victor
by original designation: Cerithium tubercularis Hensen" coll.
Montagu, 1803; Recent, Europe.
Cerithiopsis aimen Rolan & Espinosa, 1995
Diagnosis: Shell ofvarious shapes (conic to ellipsoidal),
protoconchs smooth or sculptured with axial and/or (Figures 6-11)
spiral ridges, or finely granulated; teleoconch whorls Cerithiopsis aimen Rolan & Espinosa, 1995:142, figs.
sculptured by usually three spiral cords, crossed by 27-30; Boyko & Cordeiro (2001:27).
axial ribs, forming small nodules, with various degrees
of conpicuousness. Aperture subquadrangular to cir-
MNCN
cular; siphonal canal short and oblique. Types: Holotype: 15.05/17220, Cienfuegos
AMNH
Bay, Cuba; one paratype at 226504.
Cerithiopsisfusiformis (C. B. Adams, 1850)
Material examined: The holotype and: IBUFRJ 12902,
(Figures 1-5)
[2] REVIZEE sta vv31 (18°52'S, 39°35'W, 22.8 m), 28/
Cerithium fusiforme C. B. Adams, 1850:120-121; ii/1996, NOAN coll.; MNRJ 11889, [1] REVIZEE sta
Clench & Turner (1950:285, pi. 38, fig. 4). vv31 (18°52'S, 39°35'W, 22.8 m), 28/ii/1996, NOAN
Cerithiopsisfusiforme: Usticke (1959:42, not illustrat- coll.; IBUFRJ 15373, [1] REVIZEE VI sta y7 (77 m);
ed); Jong & Coomans (1988:46, not illustrated); IBUFRJ 15565, [1] Baia de Todos os Santos, Bahia
Rolan & Espinosa (1995:132, figs. 2-6, 47). state, 5/W/1997; IBUFRJ 15564, [4] Baia de Todos os
Cerithiopsis {Cerithiopsis) fusiformis: Vokes & Vokes Santos, Bahia state sta Ilw, 22/iv/1997.
(1983:18, pi. 27, fig. 6).
Joculatorfusiformis: Redfern (2001:74, pi. figs. 310A- Cerithiopsisprieguei Rolan & Espinosa, 1995
B).
(Figures 12-18)
Types: Holotype: MCZ 186127, Caribbean Sea, Ja- Cerithiopsisprieguei Rolan & Espinosa, 1995:142, figs.
maica; C.B. Adams coll. 31-34, 45; Boyko & Cordeiro (2001:28).
Page 74 The Veliger, Vol. 50, No. 2
Figures 1-5. Cerithiopsisfusiformis. 1. holotype (MCZ 186127); 2-3, 5. IBUFRJ 12906; 4. IBUFRJ 12907; 1-2. whole shells
(lengths: 3.0 mm); 3-4. protoconchs; 5. last whorl. Scale bars: 200 urn.
Figures6-11. Cerithiopsisaimen. 6-7. holotype(MNCN 15.05/17220); 8-11. IBUFRJ 12907; 6, 8. wholeshells(respectivelengths:
3.2 mm, 2.1 mm); 7, 10-11. protoconchs; 9. last whorl. Scale bars: 200 |_im.
&
R. Figueira A. Pimenta, 2007 Page 75
Figures 12-18. Cerithiopsisprieguei. 12, 16. holotype (MNCN 15.05/17221); 13-15, 17-18. IBUFRJ 14139; 12-14. whole shells
(respectivelengths: 2.2 mm, 2.5 mm, 2.0 mm); 15. lastwhorl; 16-17. protoconchs; 18. detailofearlyprotoconchwhorls. Scalebars:
15-17: 200 |im; 18: 50 urn.
MNCN
Types: Holotype: 15.05/17221, La Habana, (24°17.129'S, 44°12.149'W, 163 m), off Sao Paulo
Cuba; several paratypes listed in Rolan & Espinosa state; MNRJ 10981, [1] PADCT sta 6577 (2515.76'S,
(1995). 45°04.62'W, 124 m), offSao Paulo state; MZSP 86308
[1], PADCT sta 6595 (26°23'S, 46°39'W, 175 m), off
Material examined: The holotype and: IBUFRJ 14139, Santa Catarina state.
[3] REVIZEE sta vv38 (19'44'S, 38°22'W, 71.4 m), off
Espirito Santo state, 29/ii/1996, NOAN col.; MNRJ Type locality: off Sao Paulo state, southeast coast of
11888, [3] REVIZEE sta vv38 (19°44'S. 38°22'W, Brazil (24:17.129'S, 44 12.149'W, 163 m).
NOAN
71.4 m), offEspirito Santostate,29/ii/1996, col. Etymology: From Latin Balaustium = balauster. The
Cerithiopsis balaustium n.sp. species is named after its protoconch sculpture, whose
series of axial riblets resembles the architectural
(Figures 19-23) elements ofa balustrade.
Type material: holotype: MZSP 86307 REVIZEE sta tDoiatghneosmiis:ddplreotpoocrotinocnhowfitehacshmalwlhoarxli,alnroitbltetosucrhesitnrgicttheed
6666 (24°17.129'S, 4412.149'W, 163 m), offSao Paulo suture; first teleoconch whorls with the two adapical
state; paratypes: IBUFRJ 15223, [1] Baia de Todos os rows ofnodulesfused togetherand becomingseparated
Santos, Bahia state sta Ilvv, 22/iv/1997; IBUFRJ on the subsequent whorls.
15566, [1] Baia de Todos os Santos, Bahia state, sta
54vv, 29/v/1997; IBUFRJ 15371, [1] REVIZEE VI sta Description: shell small, reaching 2 mm of height,
y7 (77 m); MZSP 86306 [3] REVIZEE sta 6666 somewhat pupiform, opaque. Protoconch subcylindri-
Page 76 The Veliger, Vol 50, No. 2
Figures 19-23. Cerithiopsisbalaustiumn.sp. 19,21-23.holotype(MZSP86307);20. paratype(IBUFRJ 15223); 19-20.wholeshells
(respective lengths: 1.3 mm, 1.4 mm); 21. last whorl; 22. protoconch; 23. detail of protoconch sutural area. Scale bars: 21-22:
200 |im; 23: 50 urn.
Figures 24-28. Cerithiopsiscapixaba n.sp. 24-25, 28. holotype (IBUFRJ 15221); 26-27. paratype (MZSP 86309); 24. whole shell
(length: 2.5 mm); 25-26. protoconchs; 27. detail ofearlyprotoconch whorls; 28. lastwhorl. Scale bar: 25-27: 200 um; 28: 100 urn.
&
R. Figueira A. Pimenta, 2007 Page 77
cal, dark yellow, with about 3.5 whorls of convex ing the suture. Teleoconch with up to seven whorls;
outline, the first one dome-shaped; two abapical whorls color light caramel. Suture well impressed. Teleoconch
with small prosocline axial riblets which are restricted whorl sculpture formed by three spiral cords and about
to the middle area ofthe whorls, without reaching the 16 axial ribs on the sixth whorl with the formation of
suture, except in its last half-whorl; sutural area with rounded nodules on the intersections; early whorls with
granules, especially on its adapical region, which the two posterior cords fused together, their nodules
become thicker and coalescent on the third whorl, appearing to be a single row of bilobate ones, these
forming a small spiral suprasutural cord. Teleoconch cords gradually separate from each other in the
with up to five whorls; color varying from light to dark subsequent whorls until they are equidistant on the
yellow. Suture well impressed. Teleoconch whorl sixth whorl. Base very short, with a spiral cord on its
sculpture formed by three spiral cords and about 16 periphery and two large spiral grooves, separated by a
axial ribs on the fourth whorl with the formation of spiral cord; axial growth lines, and spiral lines in its
roundednodules on the intersections; early whorls with anteriormost portion. Aperture subquadrate, with a
the two posterior cords fused together, their nodules short siphonal canal. Outer lip thickened.
appearing to be a single row of bilobate ones, these
cords gradually separate from each other in the DISCUSSION
subsequent whorls until they are equidistant on the
last one. Base short, with a slightly nodulose spiralcord Marshall (1978), studying the Cerithiopsidae from New
onits periphery and two large spiral grooves, separated Zealand, considered several genera apart from Cer-
bya spiralcord, axial growth lines, and thin spiral lines ithiopsis, such as Joculator, Horologica, Prolixodens,
in its anteriormost portion. Aperture somewhat ellip- among others. The distinction among these generic
tical, with a short siphonal canal. Outer lip thickened. nameswas based on acombination ofteleoconch shape
and sculpture, as well as on protoconch type.
Cerithiopsis capixaba n.sp In a similar way, Jay & Drivas (2002) considered
(Figures 24-28) several generic names, but relied mainly on protoconch
characteristics to restrict the concept of Cerithiopsis to
Typematerial: holotype: IBUFRJ 15221, [1] REVIZEE wshietlhlsthweitghensermaooJtohculoartopruancntdatHeordolporgoitcoac.onTchhes,diastlionncg-
9sstt2aa7t5ev,,v2[211]6/(iR2iE0/°1V3989I6'Z,S,EEN40Os°tA0a0N'cW6,3col3(l31.9;m°4)p0,a'r4oa2ft"fySp,Eessp3i:8r°itI0o8NBTUSO5aF"AnRWtNJ,o gotiefonnessrpailaramslohanpngeodotufhleotshseeesthhrerolelwesangedpneterhreawbhawoseerr,le.anredSlpatethceeidensutomwbitethrhe
61 m), off Espirito Santo state, 25/iv/1996,
c3o8ll°.2;2I'WB,UF71R.J4 m1)4,13o8f,f[E2]spRirEiVtoIZSEanEtostsatavtve3,829(/1i9i:/4149'9S6,, sacsuslipgtnuerdetdo tphreogteonceornachDsi,zonoinopstihseSaoctchoe,r18h9a5,ndM,enwdearxe
N(7O7Am)N; coMllZ.;SMPNR8J63091,0982[,1][3]RREEVVIIZZEEEE sVtIa st6a66y27 sawinotdmhePtrghoeolnsieexroad,uesnsesud.chbHyoasweMMaverensrhd,aalxtl,he(a1rc9eo7n8nc)oe,tptwinhaodacocproteregdadarndfceoder
(24°00.946'S, 43°55.540'W, 135 m), off Sao Paulo
Mendaxasspecieswithlecithotrophiclarval typeoffew
state. (2 Vi) whorls, with non-granulated earlier whorls. The
Type locality: off Espirito Santo state, southeast coast speciesincludedbyJay& Drivas(2002)have3-4whorls
of Brazil (20438'S, 40°00'W, 33 m). (planktotrophic type), with granulated earlier whorls.
Furthermore, Marshall (1978) stated that classifica-
Etymology: "Capixaba" is the common denomination tions based on protoconch types do not reflect
given to natives of the state of Espirito Santo, in phylogeny, since there can be genera with both kinds
southeastern Brazil. of development (i.e., planktotrophic and lecitho-
Diagnosis: protoconch with many thin axial ribs trophic), reflecting different protoconch sculpture
patterns.
covering the entire surface of each whorl; early
teleoconch whorls with the two adapical rows of In the absence ofradular and/or anatomical data, we
nodules fused together and becoming separated on used Cerithiopsis in a wide sense to encompass both
smooth or axially sculptured protoconchs, a position
the subsequent whorls.
adopted by Rolan & Espinosa (1995). Also, we
mm
Description: shell small, reaching 3 of height, recognized no distinction between Cerithiopsis and
pupiform with a somewhat acuminate apex, opaque. Joculator, because the differences among them are
Protoconch cylindrical, yellow, with about 5 whorls of related to general shell shape, which is quite variable in
convex outline, the first one dome-shaped; first two some species of Cerithiopsis.
whorls with small granules organized in spiral rows, Cerithiopsiss.l. species are generally characterized by
subsequent whorls with prosocline axial riblets reach- teleoconch sculpture of three or two rows ofnodulose
Page 78 The Veliger, Vol. 50, No. 2
cords, nearly equidistant, on each whorl. In some balaustium and Cerithiopsis capixaba have the adapical
species, however, the two adapical nodulose rows are row smaller than the other two at the beginning ofthe
very close to each other, and quite distant from the teleoconch, similar to C. fusiformis. Particularly in
abapical row; in some cases, these two adapical rows Cerithiopsis balaustium the adapical rows of nodules
may be fused in a kind ofdouble row, oreven only one are extremely close since the first whorl.
row may be visible, especially on earlier teleoconch The teleoconch whorls ofthe species studied are very
whorls. Marshall (1978) included species with this similar, though their shapes are not exactly the same:
teleoconch sculpture in Horologica, defined as tele- Cerithiopsis balaustium (Figures 19, 20) is somewhat
oconchs with two spiral cords, a third emerging by globose and smaller than the others, whereas Cerithiop-
fission and subsequent development of the first spiral sis capixaba (Figure 24) is somewhat pear-shaped, and
cord. However, Marshall (1978) himself expressed Cfusiformis (Figures 1, 2), C aimen (Figures 6, 8) and
doubt as to whether Horologica would prove to be a C. prieguei (Figures 12-14) are oval. Still, in our
subgenus of Joculator after eventual forthcoming opinion, this trait is too variable and hardly sufficient
anatomical data. This suggests to us that the number to allow a proper identification ofthese species.
and disposition of spiral cords are also insufficient to There are also slight differences in the separation of
discriminate amonggenericentities, and again, we have the adapical rows of nodules. In C. fusiformis, C
considered Cerithiopsis in a broad sense. aimen, C. prieguei and C capixaba, the rows become
Typical western Atlantic representatives of the type separated in the fifth or sixth whorls only; whereas in
C
ofsculpture described above, are Cerithiopsisfusiformis balaustium the two fused spiral cords are already
(C. B. Adams, 1850) (Figures 1-5), from Jamaica; and separated by the fourth whorl (Figures 19, 20).
Cerithiopsis aimen (Figures 6-1 1) and Cerithiopsis It is clear, though, that among the conchological
prieguei (Figures 12-18), both from Cuba, described characters, the sculpture on the protoconch is the most
by Rolan & Espinosa (1995). These three species are reliable and conclusive when telling these species apart.
herein reported for the first time from the Brazilian All the species have protoconchs ofthe planktotrophic
coast. type, with four or five whorls. Marshall (1978) stated
Rolan & Espinosa (1995) stated that the protoconch that, although not reliable for generic classification,
of C. fusiformis seems smooth, but has a spiral differences in sculpturing ofthe planktotrophic proto-
angulation in its middle and, in some specimens, an conch may be used for species discrimination, because
additional spiral cord near the suture. Some level of species with this larval development are usually
erosion may be responsible for this variation. These intraspecifically constant.
protoconch characters are visible in the Brazilian The protoconch of Cerithiopsis balaustium has short
specimens (Figures 3, 4). axial cords that do not touch the suture (Figures 22,
Cerithiopsis aimen (Figures 6-11) can be distin- 23), whereas that of Cerithiopsis capixaba has five
guished by its smooth protoconch, which lacks any whorls, the two adapical finely granulose and the
spiral sculpture (Figures 7, 10, 11). In addition, as remainder with axial cords touching the suture above
discussed by Rolan & Espinosa (1995), C aimen also and below (Figures 25-27). The protoconch sculpture
differs from C. fusiformis in the arrangement and of C. balaustium is somewhat similar to that of
relative size of the nodules on the first teleoconch Prolixodens sknips Jay & Drivas, 2002, but in this
whorl. The first teleoconch whorl ofC. aimen has three, species, which occurs in the Indian Ocean, the axial
equally spaced, nodulose rows, the middle one smallest, riblets are more prominent; besides, the teleoconch
until the second teleoconch whorl, when the two upper does not have the two fused adapical rows in the
rows become fused (Figures 7, 10, 11). In C.fusiformis, adapical whorls. A recently described species from
the adapical row is smaller than the other two and is Cuba, Cerithiopsis apexcostata Rolan, Espinosa &
already closer to the middle row from the beginning of Fernandez-Garces (2007) has avery similarprotoconch
the teleoconch (Figures 3, 4). sculpture, but in this species, the axial cords, touch the
Cerithiopsis prieguei (Figures 12-18) displays the suture below, while in C. balaustium, the cords are, in
same sculptural pattern on the first teleoconch whorl most ofthe protoconch whorls restricted to the middle
(Figures 16, 17) as C. fusiformis. The easiest way to area of the whorl. Also, in C. apexcostata, the two
distinguish this species from the others is by the posterior cords in the teleoconch whorls never fuse
protoconch sculpture, which has two fine, spiral cords, together, as occurs in the three older whorls of C.
with small, incomplete, oblique axial ribs (Figures 16, balaustium.
17). Further, the sutural area of the protoconch has Also, for C. capixaba, a similar protoconch can be
some small granules (Figure 18). found in three species from the Indian Ocean, Mendax
Besides the three species mentioned above, this paper penneyi, Mendaxmascarenensisand Mendaxribesae, all
presentsthedescription oftwonew species, with similar described by Jay & Drivas (2002); however, the
shell shape and sculpture pattern. Both Cerithiopsis teleoconch shapes and sculpturing are markedly
R. Figueira & A. Pimenta, 2007 Page 79
different. Rolan et al. (2007) described and illustrated several lots from northeast Brazil; Dr. L. Simone (MZSP) for
the protoconch of Cerithiopsis ara Dall & Bartsch, taking the photos ofthe types; Dr. O. Soriano (MNCN), for
1911, with 4 Va whorls, the first one with spiral cords lDora.nJ.ofHatyrpaesse;wDircah.(CU.SMNiMya)jifo(rIOaUllSoPw)i,ngfotrheloeaxnamoifnmaattieornialo;f
and the subsequent with axial ribs crossed by small types; Dr. C. Redfern for comments on the identification of
spiral threads; this is very similar to the protoconch of the species and loan ofspecimens from Bahamas Islands and
C capixaba, but in the species from Brazil, the spiral sending of bibliography; Dr. P. Bouchet (MNHN) for
cords in the initial whorls are formed by small granules comments on the taxonomy of Cerithiopsis; Dr. E. Rolan
organized in spiral rows, and in the subsequent whorls, (Museo de Historia Natural, Spain), for revision of the
there are no spiral threads. The most important manuscriptand forsending bibliography; and Dr. R. Absalao
(UFRJ), forreadingandcommentingon themanuscript; Dra.
difference between the two species, however, is in the Janet Reid, for revising the english text; Mr. R. Martins
general shell shape, elongate and with an accuminate (Petrobras Research Center) for taking SEM photos ofsome
apex in C. capixaba and short and pupoid in C. ara. shells.
Cerithiopsis prieguei has a protoconch ornamented
with smallgranules at the sutural area ofthetwoearlier REFERENCES
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prosocline axial riblets on the two abapical whorls Type Specimens in the Division ofInvertebrate Zoology,
(Figures 16-18). The protoconchs of C. fusiformis American Museum of Natural History. Bulletin of the
(Figures 3, 4) and C. aimen (Figures 7, 10, 11) are American Museum ofNatural History. 262, vol. Mollus-
generally smooth, although on the protoconch of C. ca, part 2, 170.
fusiformis, there is a small spiral keel in the middle on Clench, W. J. & R. D. R. Turner. 1950. The Western
the two abapical whorls; similar spiral keels can be Atlantic Marine Mollusks Described by C. B. Adams.
OccasionalPaperson Mollusks l(15):233-403, pis. 28^19.
fEsopuinndoisnath&epFreortnoacnodneczh-sGaorfcCeesr,ith2i0o0p7sisanbdeneCietroiitRhioolpasni,s Jay,oMf.Re&unJ.ioDnriIvsalsa.nds20(0I2n.diTahneOCceeraint)h.ioNposivdaapee(xGa3s(lt)r:olp-o4d5.a)
dilata Rolan, Espinosa & Fernandez-Garces, 2007. Jong, K. M. de & H. E. Coomans. 1988. Marinegastropods
Olsson & Harbison (1953) described Cerithiopsis from Curacao, Aruba and Bonaire Studies on the Fauna
aralia, from the Pliocene north of St. Petersburg, of Curacao and other Caribbean Islands. Leiden 69:1—
cFloomrpiadar,edanwditsthatCeedritthhaitotphsiisssfpuesciifeosrmsihso.ulJdonbge c&areCfuolol-y Lase2r6o1,n,47Cp.is.F. 1951. Review of the New South Wales
mans (1988) considered Cerithiopsis brassica Olsson & LaseCreorint,hiCo.psFi.dae1.956A.usTtrhaeliFaanmiZlooyloCgeirsitthi1o1p:s3i5d1a-e36(8M.ollusca)
Harbison, 1953 as a synonym. We examined the from the Solanderian and Dampierian Zoogeographical
holotype of C aralia, and although both species are Provinces. Australian Journal ofMarine and Freshwater
very similar, we prefer to retain them as separate taxa Research 7:151-182.
cboecnafuisremwtehefepeolstshiabtleadsdyitnioonnyalmystuodfiesspeacrieesnefcreossmarsyuctho MarsPhroavlilsi,onBa.lA.Cla1s9s7i8f.icCaetriiotnhioofpstihdeaeFoafmiNleyw. ZNeeawlanZdeaalnadnda
Journal ofZoology 5:47-120.
distant geological provenance. Although we did not Ode, H. 1989. Distribution and records of the marine
examine the holotype of C. brassica, the same Mollusca in the northeast Gulf of Mexico-a continuing
interpretation applies. monograph. Texas Conchologist 26(1):10-30.
The previously known distribution of C. fusiformis Olsson, A. A. & A. Harbison. 1953. Pliocene Mollusca of
included the Western Atlantic, from North Carolina Southern Florida, with special reference to those from
North Saint Petersburg. Monographs ofthe Academy of
(aUn.dS.CA..p)rtioegtuheeiCwaerriebkbenaonwn(Roonsleynbferrogm, C20u0b5a);(CR.olaainme&n PondNeart,uraWl.ScFi.en1c9e9s8.ofPPrhoisloabderlapnhciha c8l:vaisisi+fic4a5t9iopn.., I6n5:pPis.. L.
Espinosa, 1995). This is, therefore, their first record Beesley, G. J. B. Ross & A. Wells (eds.), Mollusca: The
from the South Atlantic. In Brazil, C. fusiformis is Southern Syntesis. Fauna of Australia. Vol. 5, Pp. 566-
widely distributed, from the states of Pernambuco 568, CSIRO Publishing, part B. viii. 565-1234.
(northeastern Brazil, s 8°S) to Rio Grande do Sul Ponder, W. F. & A. Waren. 1988. Classification of the
(southern Brazil, = 30°S); C prieguei and C. aimen CgraoeunpognaasmtersopaonddahaingdheHretteaxrao.st2r8o8p-h3a28-,aIlni:stWo.ftFh.ePfaomnidleyr-
have only been found in southeastern Brazil (Espirito (ed.), Prosobranch Phylogeny - Proceedings of a symp-
Santo State, s 19°S). Both Cerithiopsis balaustium and sium held at the 9th International Malacological Con-
Cerithiopsis capixaba are restricted to localities in gress, Edinmbug, Scotland. Malacological Review Sup-
southeastern Brazil: about 24°S and 20°S-24°S, respec- plement 4. Ann Harbor. 346 pp.
tively, with some records of Cerithiopsis balaustium Redfern, C. 2001. Bahamian Seashells. A Thousand Species
from the northeast coast, though in a southern locality from Abaco, Bahamas. Bahamianseashells.com Inc.:
(S13°S). RolaBno,caE.Ra&tonJ.. E2s2p1inp.o,sa1.241p9i9s5.. The family Cerithiopsidae
(Mollusca: Gastropoda) in Cuba 3 Thegenus Cerithiopsis
Acknowledgments. Dr. A. Baldinger (MCZ) for loan oftypes; s.L, species with brown shells. Iberus 13:129-147.
Dr. P. Bouchet and Mr. P. Maestrati (MNHN) for loan of RolAn, E., J. Espinosa & FernAndez-Garces. 2007. The
Page 80 The Veliger, Vol. 50, No. 2
family Cerithiopsidae (Mollusca: Gastropoda) in Cuba 4. Usticke, G. & W. Nowell. 1959. A Check List of Marine
The genus Cerithiopsis s.l., the banded and the variably Shells ofSt. Croix., vi + 90p.. 4 pis.
coloured species. Neptunea 6(2):1-129. Vokes, H. E. & E. H. Vok.ES. 1983. Distribution ofShallow-
Rosenberg, G. 2005. Malacolog4.0: A database ofWestern Water Marine Mollusca, Yucatan Peninsula, Mexico.
Atlantic marine Mollusca. [WWW database (version Middle American Research Institute: New Orleans. 182
4.1.0)] URL http://data.acnatsci.org/wasp]. p., 50 pis., 9 figs., 1 map.