A new species of Daphnella (Gastropoda: Conidae) from South-Western Japan and the Western Pacific

2006·1.5 MB·

by  Mitsuo Chino

M. Chino NOVAPEX 7 (1): 17-20. 1 mars 2006
A new species ofDaphnella (Gastropoda: Conidae)
from South-Western Japan and the Western Pacific
Mitsuo CHINO
6-23-18-202, Arima, Miyamae-ku, Kawasaki,
Kanagawa, 216-0003, Japan
KEYWORDS.
Gastropoda, Conidae, Japan, Western Pacific. Daphnellapulviscula n sp.
ABSTRACT. A new species ofa turrid gastropod is described and compared with similar species.
The new species has been collected in Japan from Okinawa Préfecture and from Wakayama
Préfecture, central Honshu. It has also been taken off Aliguay Island in Northern Mindanao
Province. Philippine Islands, and from several localities in the Western Pacific. The new species
has a brown maculate pattern with numerous dark brown spots, abrownish purple siphonal process
and a ratherdeep, wide anal sinus.
INTRODUCTION Type material. Holotype: 27.6mm x 11.9mm, off
Senkaku Islands. Okinawa Préfecture. Japan. 100 m.
The Senkaku Islands are located in the southwestern NSMT Mo-73702 (Figs 1-2).
cornerofthe Okinawa Archipelago and Shiono-misaki Paratypes 21.8 x 9.9mm. same data as holotype.
:
is at the southernmost extremity of the island of MNHN (Figs 3-5); 23.3 x 11.1mm, same data as
Honshu in mainland Japan. holotype. NSMT Mo-73703 (Figs 6-7).
Daphnella species are mostly distributed in the Indo-
Pacific, from shallow to deep water. Several new Other material examined. Philippines: 32.3mm x
species were reported from deep water in Japan by Dr. 13.9mm; 25.4mm x 10.3mm; 18.7mm x 8.1mm;
Tokubei Kuroda in the 1950s, but were not described. 20.9mm x 9.3mm; 18.5mm x 9.1mm, off Aliguay
Two species were described by Habe & Masuda
Island, northern Mindanao, trawled live at 100-140m.
(1990) and many were illustrated by Hasegawa et al. Chino coll.
(2000). Japan 18.6mm x 9.0mm. off Shiono-misaki.
The author recently obtained several examples of a Wakayama, dead shell trawled at 160m, Chino coll.;
new species from the Senkaku Islands and Shiono- 14.4mm x 6.3mm, dead shell. Tanaka coll.
mFiurstahkeir imnatJearpiaanl, haass waellslo abseefnromdretdhegedPhiolfifppiNneesw. NE,ew27C4aml,edo1nidad.:—LAMGUOSNO,RstSa.T3O8M9, 42,2°s4t3a'. SD,W1672°3045,'
CFiajli,edoofnfiTa,onognatahnedNoinrftohlekAuRsitdrgael,Iisnlatnhdes.Coral Sea, off 2st2a°.15D'WS,681867;°0280'°33E,' S3,501-6356°500'm.E,12d7d0-.2—82BAm,TH2UdSd.—1,
Careful comparison with known species has revealed BATHUS 2, sta. DW 724. 22°48' S, 167°26' E, 344-
them to represent a new species of the genus 358 m, 1 dd.— BATHUS 4, sta. DW 886, 21°01' S,
Daphnella. 164°28' E, 250-300 m. 1 dd.— BATHUS 4. sta. DW
Abbreviations B88A7,TH2U1S°074', sSt,a. D16W4°2982'7,E,18°3562'0-S3,44163m°,22'1E,d4d4.4—-
NMSNMHTN: NMatuisonéaulmScniateinocnealMud'sHéiusmto,irTeoknyatou,reJlalpea,nP.aris. 415632°2m4,' E2, l5v2.0-—53B0AmT.HU1 Sdd4..—sStaM.ICBP8,93s0ta.. D18W°511'58S..
France. : 24°46' S, 168°08' E, 262-290 m, 1 dd.— SMIB 8. sta.
DW
dlvd..::leimvep-tcyolslheecltle.d. NORF17O0L-1K72.1,23s°t4a1.'DS,W1681°70308',E2,22°5310'-2S9,0 m1,67°11d0'd.E—,
340-381 m. 1 lv.— Commercial trawler, 22°40' - 50'
SYSTEMATICS S, 167°10' - 30' E, 200-350 m, 2 lv. Largest spécimen
22.6mm x 10.1mm. Ail MNHN.
TGSFuaeybmnpfiuealsmysipDCelacyOpiheNRsn:IAelDPPllAHaeEIuHrTiFonOltdeoMsm,mIian1Ng8lA,4ym4E1n8eB2ie2flolrarmdiis, 1K8i7e5ner, 1839 LNE1oo,6yr83af°7lo00t2ly'kmR,ERi,is1de3gd8de:6.-(S:32MB90I0A.BTm6,Hm5,mU1sStxda.9d3,.D.2—sWmtaBm.8A7D),T(W2HM2UN°8HS129N9';)3,S..2s3t°1a26.18°'D41WS'.
(s.d. Herrmannsen,1847) 830, 23°20' S, 168°01' E. 361-365 m, 1 dd.—
BATHUS 3. sta. DW 838. 23°01' S. 166°56' E. 400-
Daphnellapulviscula n. sp. 402 m. 1 dd.— NORFOLK 1, sta. DW 1729, 23°20' S,
Figs 8
168°16' E, 340-619 m. 1 dd. Largest spécimen
TPryépfeecturleoc,aJliatpya.n. tOrfafwleSdelnikveakatu10I0sml.ands. Okinawa 2Co3r.a5lmmSexa:1 1.M2UmmS.OARilSTMNOHMN.5. sta. 269. 24°47' S,
159°37' E, 250-270 m, 1 lv.— 16.0mm x 7.1mm.
17
\l ( iil\o \ ncu species ofDaphnella from Japan
\!l SORSTOM 5, sta, 270, 24°49' S. 159°34' I . 223 thickened by rim ofcallus. Anal sinus suturai, rather
m. I dd \ll \l\ll\ deep and wide, Siphonal canal straight. wide, rather
/-///BORDAI l.sta I)\\ 1417, 16°27'S, 178°55' W, short, broadly open. Protoconch light brown; flrst two
.
J53 m, l dd 17.3mm \ 8.0mm, BORDAI1 I. sta. teleoconch whorls whilish brown, succeeding ones
DW 1465. 18°09' s. 178°39' W. 290-300 m. Idd. Ail with light brown surface bearing numerous, small,
axially elongated dark brown spots. Anal sulcus with
\T\o,n4g4a1:-B44O3RDm.AII d2d..sta BDOWRD1A54U4,22.1°st1a8.'DS,W1715°61087', a(lotleurnmactlilnagr lidpaarnkd aantnedriorlicgahtnalbbrroowwnnishmapcuurlpalet.ions.
22°15' S. 175°23' W, 356-367 m, 1 dd.— 17.3mm x Soft parts not examined.
s 0mm, BORD \l 2, sta. DW 1636. 21°44' S. 175°20'
W, 321-331 m, 1 dd. Ail MNHN. Etymology. pulviscula, ( Latin: fine powder ) refers
French Polynesia, Austral Islands : 14.0mm x 6.7mm, to the brown color and powder-like surface
BENTHAl S. sta DW 1973. 23°23.5' S. 150°43.9' W, appearance ofthe species.
2ti()-230 m. dd. MNHN.
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Distribution. Japan: Shiono-misaki. Wakayama Remarks. The shape of the new species resembles
Préfecture; Senkaku Islands, Okinawa Préfecture; closely Daphnella nobilis Kira 1959 (Figs 11-13),
Philippines: Aliguay Island, Northern Mindanao; which is sympatric at the type locality, but D.
Pacific: New Caledonia; Loyalty Rise; Norfolk Ridge; pulviscula n.sp. differs in having a much finer surface
sculpture and a dark brown maculate pattern. D.
Coral Sea; Fiji; Tonga; French Polynesia. Live
angulata Habe and Masuda, 1990 (Figs 14-15) and D.
collected in 100-444 m.
semivaricosa Habe and Masuda, 1990 both resemble
Description. Shell relatively thin, médium sized for the présent species; however both hâve elongate,
genus (to 32.3mm in height) vvith large, well inflated strongly sculptured whitish shells.
fusiform body whorl representing 65-70% of shell D. pemobilis Kuroda and Habe,1961 (Figs 9-10), the
height. Conical spire with 9 convex teleoconch holotype ofwhich was illustrated by Higo et al. (2000:
whorls; shoulder weakly angulate with slightly fig. G3860), has a very inflated whitish shell and
differs considerably from the new species.
concave area above, suture deeply adpressed.
Protoconch with obliquely reticulate sculpture.
ACKNOWLEGEMENTS
Teleoconch whorls slightly convex with no
pronounced subsutural ramp; suture distinct, rather
shallow. First two teleoconch whorls with 10 spiral I am grateful to Dr. Philippe Bouchet for granting
MNHN
cords, succeeding ones with 18-20 cords and distinctly access to spécimens obtained by expéditions
defined suture. Body whorl with 45-50 cords. Axial in the Southern Pacific Islands; to Mr. Makoto Tanaka
ribs indistinct and barely visible. Aperture large, ofKushimoto Town, Wakayama Préfecture, Japan for
elongate, broad, oval, about 48% of shell height, providing spécimens from Shiono-misaki, to Dr.
MNHN
deeply indented between shoulder and suture. Pariétal Alexander Sysoev, visiting curator at the for
wall of aperture convex in upper part; columellar the préparation ofthe list ofmaterial held there, to Mr.
margin ofcanal only slightly curved, overlaid in lower Roland Houart for suggestions on the manuscript,
part by inner shell layer. Callus narrow and thin. digital photographs and plate préparation, and to Mr.
Outer lip with thin edge but inner margin of aperture Paul Callomon forcorrecting the English text.
Figures 1-15
1-8. Daphnellapulviscula n. sp.
1-7. Japan, off Senkaku Islands, Okinawa Préfecture. 1-2. 27.6mm x 1 1.9mm (holotype NSMT Mo-73702 ); 3-
S5.MI2B1.58,msmta.xD9.W9m87m,(2p0a.r6atxy9p.e2MmNmH(NMN);H6N-)7..23.3 x 1 1.1mm (paratypeNSMT Mo-73703 ); 8. Loyalty Rise,
9-10. D. pemobilis Japan, offKochi Pref, 33.3mm x 17.2mm, coll. Mitsuo Chino 11-13. D. nobilis Japan, off
;
Kochi Pref, 36.2mm x 17.2mm, coll. Mitsuo Chino; 14-15. D. angulataJapan, offKochi Pref, 25.4mm x
10.2mm, coll. Mitsuo Chino
M. Chino NOVAPEX 7 ( 1 ): 17-20, 10 mars 2006
\l Chino A new species oîDaphnella from Japan
&
Kl 11 R] \( l s Higo, S., Callomon, P. Goto.Y. 2001. Catalogue
andBibliographyofthe MarineShell-Bearing
llahc. I A: MaMkia. (). Il)l)0. Catalogueofthe MolluscaqfJapan. TypeFigures. Elle Scientific
molluscan shells donated b> Mr. Hiroshi Noguchi Publications, Yao, Japan, 208 pp.
to the Natural Historj Muséum, Tokai University, Sysoev, A. & Bouchot, P. 2001. New and uncommon
nce Reports 4: 152 pp. turriform gastropods (Gastropoda:Conoidea) from
tiasegawa, K . Okutani, T. & Tsuchida, 1-.. 2000. the South -West Pacific. In Bouchet, P. &
Turridae. /// Okutani. 2000. Marine Mollusks in Marshall, B. (Eds.).Tropical Deep Sea Benthos.
Japan, 61°-(ï67, Tokai Univ. Press, Japan, 73 Mémoires du Muséum nationald'histoirenaturelle
1 1
pp. 22 (185):271-320.
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