New species and new records of the genus Elaphoidella (Crustacea: Copepoda: Harpacticoida) from the United States

10 Pages·1993·4.7 MB·

by  J W Reid

PROC. BIOL. SOC. WASH.
106(1), 1993, pp. 137-146
NEW SPECIES AND NEW RECORDS OF THE GENUS
ELAPHOIDELLA (CRUSTACEA: COPEPODA: HARPACTICOIDA)
FROM THE UNITED STATES
Janet W. Reid and Teruo Ishida
Abstract. —We list the first record ofElaphoidella wilsonaefrom New Mexico
and new records of Elaphoidella bidens from Maryland, Tennessee, Virginia
and the District ofColumbia. Two new species ofharpacticoid copepods from
the eastern United States, Elaphoidella carteraefrom Virginia andElaphoidella
amabilisfrom Marylanddifferfrom congeners inthe shapes ofthe caudal ramus
and caudal setae and the spine formulas of the swimming legs. We provide
keys to the known species ofElaphoidella from North America.
Collections of harpacticoid copepods recognitionatthegenericlevelofthispoorly
from springs and streams in the District of defined group of species.
Columbia, Maryland, NewMexico and Vir-
ginia included several species, two previ- Order Harpacticoida G. O. Sars, 1903
ously undescribed, belonging to the harpac- Family Canthocamptidae G. O. Sars, 1906;
ticoid copepod genus Elaphoidella. We list Monard, 1928; Lang, 1948
the new records of the previously known Genus Elaphoidella Chappuis, 1929
species and describe the new ones. The de- Elaphoidella wilsonae YiunX, 1979
scription of each species was authored by
We Elaphoidella wilsonae \^vin\, 1979:248-253,
its collector. furnish identification keys
figs. 1-21.
and a table of distinguishing characters of
—
both sexes of the known North American Materialexamined. 1 9, in 70% ethanol,
species. For taxonomic examination, spec- Guadalupe River, Jemez National Forest,
imens were drawn with the aid of drawing about 40 km NE ofSan Ysidro, New Mex-
tubes before dissection in lactic acid and ico, about 35°45'N 106°50'W, elevation
after dissection in polyvinyl lactophenol about 2100 m, damp moss by streamside,
with a little chlorazol black E added, or in 26 May 1991, col. E. Warner (USNM
gum-chloral medium. Lengths were mea- 251152).
sured from the anterior tip of the rostrum Remarks. —The specimen from New
to the end ofthe caudal ramus. Specimens Mexico agrees in all respects with the de-
were deposited in the National Museum of scription of females from the type popula-
Natural History, Smithsonian Institution tion (Hunt 1979).
(USNM). Distribution and habitat.—The Guada-
Hamond (1987) returned several generic lupe River is a third-order stream in the
and subgeneric taxa including Elaphoidella drainage basin ofthe Rio Grande. This spe-
to the synonymy ofthe genus Canthocamp- cies was formerly known only from alkaline
tus Westwood, 1836 s. 1. pending eventual spring-fedponds in Garfieldand Rio Blanco
revision of the family Canthocamptidae. Counties, Colorado, in the basins ofthe Col-
However, we have employed the more fa- orado and Green Rivers respectively. The
miliargenus namewithoutwishingto imply find reported herein extends its known dis-
138 PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON
tribution some 400 km to the south and lected an ovigerous female E. bidens from
newly includes the Rio Grande drainage ba- a small lake at Sewanee, Tennessee on 8
sm. April 1973; this is anewrecordforthat state
(H. C. Yeatman, pers. comm.). The new
Elaphoidella bidens (Schmeil, 1893) records herein, including the first reports
from the District of Columbia, Maryland
Synonymy.—GivQn by Lang (1948) and
and Tennessee, are well within the known
Apostolov(1985).
— range ofthis species in North America.
Material examined. ethanol-pre-
$,
served, Lonaconing Creek, south of Raw-
Elaphoidella carterae Reid, new species
lins, Allegany County, Maryland, about
39°31'N 78°54'38"W, 2 Feb 1988, col. M. Figs. 1, 2
C. Swift (USNM 242082). 2 $, ethanol-pre- Material examined.—^oloXypt 9, dis-
served, Piney Creek, Garrett County, Mary- sected and mounted on slide in polyvinyl
land, about 39°42'21"N 78°57'45"W, 6 Apr lactophenol (USNM 25 1767), and paratype
1988, col. M. C. Swift (USNM 242084). 3 9, in 70% ethanol (USNM 251768), from
2, Mountain Lake, Giles County, Virginia, Mountain Lake, Giles County, Virginia,
37°2r22"N80°32'll"W, elevation 1181 m, 37°21'22"N80°32'11"W, elevation 1181 m,
sandy bottom at small swimming beach on sandy bottom at small swimming beach on
south shore, 25 May 1990, together with E. south shore, 25 May 1990, col. J. W. Reid.
carterae, col. J. W. Reid (USNM 250448). Female.—YidihiXus (Fig. la) cylindrical.
3 9 on 2 slides, and 4 9, 1 copepodid, eth- Length of holotype 0.76 mm, of paratype
anol-preserved, near-bank sediments of 0.62 mm. Cephalosome (Fig. la, b) with
Rock Creek, District ofColumbia, just east elongate ovoid nuchal organ. Hyaline fring-
of Maryland border, about 38°59'00"N esofposteriormargins ofall somites smooth.
77°03'10"W, 5 Oct 1990, col. T. Ishida All somites with scattered long hairs and all
(USNM 251796). somites except cephalosome with trans-
Remarks.—Elaphoidella bidens is a usu- verse rows of tiny hairs, surface of all so-
ally parthenogenetic species recorded from mites also finely punctate as in area within
nearly every continent. The taxonomy of dotted line (indicated by arrow) on lateral
the two subspecies, E. bidens s. s. and E. surface of pediger 2 (Fig. la). Genital seg-
bidenscoronata (G. O. Sars, 1904), recorded ment (Fig. la, c) with remnant of division
from North America was discussed by Wil- visible laterally beneath integument (indi-
son (1956, 1975) and Wilson & Yeatman cated by dotted line in Fig. la); ornamented
(1959). More recently Apostolov (1985), with short transverse row of small spines
citing morphological variations including lateral to genital field; genital field reaching
the coronata-iorvci presentintopotypicpop- midlength ofsegment. Two urosomites pos-
ulations of£". bidens, returned several sub- terior to genital segment (Fig. la, c) each
species to the nominate species taxon. with one row ofsmall spines on ventral and
North American records of£". bidens co- lateral margin. Anal somite (Fig. la, c-e)
ronata reviewed by Wilson (1975) include with two spines near posteroventral margin
Florida, Georgia, Louisiana, Minnesota, above each caudal ramus; anal operculum
North Carolina, Ohio, Pennsylvania, and smooth, slightlyconvex. Caudalramus (Fig.
Virginia. These records include a report by la, c-e) about 1.2 times longer than broad,
Carter (1944) from the region ofMountain ovate, with dorsal, terminally hooked lon-
%
Lake. Subsequent records ofE. bidens s. 1. gitudinal keel extending about length of
from North America include Coahuila, ramus, and small subdistal mediallobe. Ra-
Mexico by Reid (1988) and New York by mus with basally biarticulate dorsal seta in-
Strayer [1988 (1989)]. H. C. Yeatman col- serted lateral to end ofkeel, two lateral se-
VOLUME NUMBER
106, 1 139
Fig. 1. Elaphoidella carteme Reid, new species, female, holotype (USNM 251767): a. Habitus, left lateral
(arrow indicates detail of somitic punctations); b, Cephalosome, dorsal; c, Urosome, ventral; d. Anal somite
and caudal ramus, left lateral; e. Part ofanal somite and right caudal ramus, dorsal (somewhat compressed in
permanent mount); f, Antennule; g, Antenna; h. Mandible; i, Maxillule (part); j. Maxilla; k, Maxilliped. Scales
= 50 ^m.
140 PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON
Fig. 2. ElaphoidellacarteraeReid, newspecies, female, holotype (USNM 251767): a, Leftleg 1 andcoupler;
b, Right leg 2 and coupler; c, Left leg 3 and coupler; d, Left leg 4 and coupler; e, Right leg 5 and coupler. Scale
=
50 Mm.
tae, longitudinal row of five spines slightly with two sensillae. Antennule (Fig. If) of
ventral to insertion of distal lateral seta, eight articles, article 4 with long broad es-
group offine hairs distal to medial lobe, and thetasc reaching past end of antennule, ar-
three terminal setae. Median terminal setae ticle 8 with shorter slender esthetasc. An-
broken in both specimens, lacking proximal tenna (Fig. Ig) biarticulate, exopodite
breaking plane and ornamented with few uniarticulate with four setae. Exopodite of
spiniform setules; lateralmost terminal seta mandible (Fig. Ih) biarticulate, proximal
with bulbous base and slender tip; medi- and distal articles with one and four setae
almost terminal seta stout, tapering, slightly respectively. Maxillule (Fig. li) partly ob-
shorter than lateralmost terminal seta; both scured in mount, basis with three visible
medialmost and lateralmost terminal setae setae and long terminal claw. Maxilla (Fig.
ornamented with fine hairs. Holotype bear- Ij) also with three setae onbasis. Maxilliped
ing long ovoid spermatophore (Fig. Ic). (Fig. Ih) prehensile, with basis broken but
Rostrum (Fig. 1a, b) short, subtriangular. lacking seta present on some congeners.
11 :
VOLUME NUMBER
106, 1 141
Legs 1-4 (Fig. 2a-d) each with triarticu- Table 1.—Number of major setae and spines on
late exopodite; endopodite ofleg 1 triarticu- proximal: distal articles ofendopodites oflegs 2-4 (fe-
males) and legs 2 and 4 (males) and on basoendopod-
late, longer than exopodite; endopodites of
ites: exopodites ofleg 5 ofspecies ofElaphoidella re-
legs 2-4 each biarticulate. Formula for ma- corded from North America. (Males of£". californica,
jor armament as follows: E. carterae, and E. kodiakensis are unknown.)
Legl basis 1-1 exp 0-1 1-1; 0,2,2 Species Leg2 Leg3 Leg4 Legs
enp 1-0 1-0; 1,2,0
,
Females
Leg 2 basis 0-1 exp 0-1• 1-1; 1,2,2
enp 1-0 1,2,1 amabilis 1:3 0:3 0:3 4:3
, shawangunkensis 1:3 0:5 0:3 4:3
Leg 3 basis 0- exp 0-1 0-1; 2,2,2
carterae 1:4 0:4 1:4 4:4
enp 0-0, 1,2,1 subgracilis 1:4 1:5 1:4 4:4
Leg 4 basis 0- exp 0-1 1-1; 2,2,2 californica 1:5 1:5 1:4 4:5
enp 1-0,2,1,1 bidens, kodiakensis.
reedi, wilsonae 1:5 1:6 1:4 4:5
Major lateral spines of leg 3 exopodite ar-
Males
ticles 1 and 2 very large, curved posteriorly. shawangunkensis 1:3 — 0:3 0:3
More distal setae of exopodites oflegs 2-4 subgracilis 1:3 — 9 0:4
—
and endopodites of legs 3 and 4 unusually amabilis 1:3 0:3 0:4
—
stout, almost spiniform. Couplers ofall legs reedi, wilsonae 1:4 — 0:3 0:4
bidens 1:4 2- 0:4
without ornament.
Leg 5 (Fig. 2e), medial expansion of ba- ^ The leg 4 endopodite of the male of E. bidens is
soendopodite reaching less than Vi length of uniarticulate.
exopodite. Basoendopodite and exopodite
each with four setae of which lateral and
differs from known NorthAmerican species
medialmost setae are very short and two
(Table
1).
medial setae longer, all setae stout, spini-
form.
Elaphoidella amabilis Ishida, new species
No variation was observed between the
two specimens. Material examined. —Holotype 2, dis-
Male. —Unknown. sected and mounted on slide (USNM
Etymology. —Dr. Marjorie Estelle Carter 25 1799). Allotype6, dissected and mounted
collectedcopepods from MountainLake and on slide (USNM 251800). Paratypes: 2 $
itsenvironsfornearlytwo decades, butpub- and 1 6, mounted whole together on slide
lished only two articles, one posthumously, (USNM 251798), and 2 9, in 70% ethanol
from those studies (Carter 1944, Carter & (USNM 25 1797). All from perennial spring,
Bradford 1972). Her collection, which ap- southeast comer ofMaryland Maintenance
parently included numerous undescribed Facility, Rock Creek Stream Valley Park,
species, no longer survives (H. H. Hobbs, Montgomery County, Maryland, approxi-
m
Jr., pers. comm. to JWR). It is a pleasure mately 100 west ofboundary with Wash-
to pay tribute to Dr. Carter's contributions ington, D.C., 38°59'16"N 77°03'18"W, 5 Oct
to knowledge ofAmerican harpacticoid co- 1990, col. T. Ishida. Mounted specimens in
pepods by naming this species for her. gum-chloral medium.
Comparisons.—The form of the caudal Female. —Habitus (Fig. 3a) cylindrical.
ramus, especially the medial protrusion, and Length of holotype 0.57 mm, of mounted
the terminal caudal setae resemble those of paratypes 0.55 and 0.56 mm. Hyaline fring-
no known member of the Elaphoidella- esofposteriormarginsofall somites smooth.
group. The major setation of legs 1-4 also Surface ofall somites rather smooth, faintly
142 PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON
HC,d,e,g
Fig. 3. Elaphoidella amabilis Ishida, new species, female, b-f, holotype (USNM 251799), a, g, paratype
(USMM 251798): a, Habitus(somewhatcompressedinpermanentmount),leftlateral;b, Antennule;c.Antenna;
d, Genital field; e, Penultimate urosomite, anal somite, and caudal rami, ventral; f, Anal somite and caudal
rami, dorsal; g. Anal somite and caudal ramus, left lateral. Scales =100 jum.
punctate. Posterior end of seminal recep- than broad, rectangular, with dorsal, ter-
%
tacle (Fig. 3d) reaching length of genital minally hooked longitudinal keel extending
segment. Penultimate urosomite (Fig. 3a, e) about%length oframus. Caudalramuswith
with rows of small spines on lateral and basally biarticulate dorsal seta inserted lat-
ventral margin. Anal somite (Fig. 3e-g)with eral to end of keel, two lateral setae, each
transverse rowoflateral spines oneach side, with transverse row of four spines at base,
and with two spines near posteroventral and three terminal setae. Median terminal
margin above eachcaudal ramus; anal oper- seta lacking proximal breaking plane, ba-
culum convex, with marginal comb. Caudal sally expanded with ventral knob at inser-
ramus (Fig. 3e-g) about 1.5 times longer tion, remaining part of seta slender, about
VOLUME NUMBER
106, 1 143
Fig. 4. Elaphoidella amabilis Ishida, new species, female, holotype (USNM 251799): a, Right leg 1 and
coupler: b, Left leg 2 and coupler; c. Right leg 3 and coupler; d, Left leg 4 and coupler; e, Left leg 5 and coupler.
Male, allot>T)e (USNM 251800): f. Anal somite and caudal rami, dorsolateral; g. Left leg 3 and coupler; h, Right
leg 5. Scale = 100 jum.
1.3 times longer than urosome. Lateralmost Legs 1-4 (Fig. 4a-d) each with triarticu-
terminal seta slender, ventrally curved late exopodite; endopodite ofleg 1 triarticu-
proximally, base bulbous with acute dorsal late, longer than exopodite; endopodites of
process. Medialmost terminal seta stout legs 2—4 each biarticulate. Formula for ma-
proximally, tapering distally, about V2 length jor armament as follows:
oflateralmostterminal seta. Medialmostand
lateralmost terminal setae ornamented with Leg I basis 1-1 exp 0-1 1-1; 0,2,2
enp 1-0 1-0; 1,2,0
fine hairlike setules, median terminal seta ,
Leg 2 basis 0-1 exp 0-1 1-1; 1,2,2
ornamented with short stiff setules.
enp 1-0 1,1,1
Rostrum short. Antennule (Fig. 3b) of ,
Leg 3 basis 0-1 exp 0-1 0-1; 2,2,2
eight articles, article 4 with long esthetasc
enp 0-0 1,1,1
reaching past end ofantennule, article 8 with ,
Leg 4 basis 0-1 exp 0-1- 1-1; 2,2,2
shorter esthetasc. Antenna (Fig. 3c) biartic-
enp 0-0 1,1,1
ulate, exopodite uniarticulate with four se- ,
tae. Major lateral spines of leg 3 exopodite ar-
. .
144 PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON
tides 1 and 2 large, curved posteriorly. Dis- The male resembles E. subgracilis in seta-
tal medial setae ofendopodites oflegs 3 and tion ofthe swimminglegs, as faras the latter
4 short. Couplers of all legs without orna- species has been described, but differs in
ment. lacking a papilla on the lateral surface ofthe
Leg 5 (Fig. 4e), medial expansion of ba- caudal ramus.
soendopodite reaching less than V2 length of
exopodite. Basoendopodite with four setae,
Keys to Continental North American
lateralmost seta very short and two medial
Species ofElaphoidella
setae longest. Exopodite with three setae,
medialmost seta very short. The following key to females of conti-
Male. —l^engih of allotype 0.52 mm, of nental North American species oiElaphoi-
paratype 0.51 mm. Urosomite 3 with one della represents a considerable departure
row of small spines on ventral and lateral from the previous key of Hunt (1979) in
margin. Anal somite (Fig. 4f) similar to fe- that it is based primarily on the setation of
male, but with one spine near posteroven- legs 2-4. These meristic characters are eas-
tral margin above each caudal ramus. Cau- ierto interpretthan are descriptions ofform
dal ramus (Fig. 4f) subrectangular, with in a keywithout illustrations. Howeverthere
dorsal keel extending about Vi length ofra- isalwaysthepossibilityofvariationinnum-
mus, dorsal seta biarticulate at base, two ber of setae and users should consult the
lateral setaeeachwithtransverserowoffour original species descriptions. As an addi-
spines at base. Median and lateralmost ter- tional aid, a more complete description of
minal setae without bulbous bases. setation is given in Table 1
Legs 1, 2, and 4 similarto those offemale. Hunt (1979) didnot furnish akeyto males
Leg 3 (Fig. 4g) exopodite, major lateral ofcontinental North American Elaphoidel-
spines ofarticles 1 and 2 very large, curved la. The males ofE. californica, E. carterae
posteriorly; major setae and spines ofarticle and E. kodiakensis are undescribed. The
3 shorter than those of female. Leg 3 en- male of E. subgracilis is incompletely de-
dopodite triarticulate, modified, spiniform scribed.
process ofarticle 2 reaching only midlength
Key to females:
of exopodite article 3, article 3 with two
short apical plumose setae. 1 Leg 2 endopodite article 2 with total
Leg 5 (Fig. 4h) basoendopodite reduced, ofthree setae 2
lackingarmament; exopodite slightlylonger - Leg 2 endopodite article 2 with total
than broad and bearing four spines, next offour or five setae 3
innermost spine longest. 2. Leg 3 endopoditearticle 2withthree
No variation was observed between spec- setae .... amabilis Ishida, new species
imens ofeither sex. - Leg 3 endopodite article 2 with five
Etymology.—NsLTned for the lovely as- setae
pect ofthe body, especially the female cau- shawangunkensis Strayer, 1988 (1989)
dal rami. 3. Leg 3 endopodite article 1 with one
Remarks. —The type locality is the same medial seta, article 2 with five or six
as that ofAttheyella (Mrazekiella) spinipes setae 4
Reid, 1987. - Leg 3 endopodite article 1 naked,
Comparisons. —Elaphoidella amabilis, article 2 with four setae
like E. carterae is highly distinctive in the carterae Reid, new species
structure ofthe caudal rami and caudal se- 4. Caudal ramus with small or no dor-
tae. The major setation of the swimming sal keel, not ending in hook; hyaline
legs of the female is the most reduced of membranes of somites smooth ... 5
known North American species (Table 1). - Caudal ramus with pronounced
.
VOLUME NUMBER
106, 1 145
dorsal keel, ending in large hook; medial and lateral surfaces slightly
hyaline membranes of somites expanded in dorsal view .... wilsonae
coarsely toothed - Caudal ramus bottle-shaped, me-
bidens (Schmeil, 1893) s. 1. dial and lateral surfaces incurv ed in
5. Leg 3 endopodite article 2 with dorsal view reedi
six setae, leg 5 exopodite with five
setae 6 Acknowledgments
- Leg 3 endopodite article 2 with five
The cordial assistance of many people
setae, leg 5 exopodite with four setae
contributed to this report. Members of the
subgracilis (Willey, 1934)
Department of Biology, Virginia Pohtech-
- Leg 3 endopodite article 2 with five &
nic Institute State University, Blacks-
setae, leg 5 exopodite with five setae
burg, conducted an excursion to Mountain
californica Wilson, 1975
Lake subsequent to the 1990 meeting ofthe
6. Caudal ramus 2-3 times longerthan
North American Benthological Society, in
broad, anal somite not expanded JWR
which participated. Mr. William B.
dorsally over caudal ramus, most of
Yeaman ofthe U.S. National Park Serv'ice
ramus visible in dorsal view 7
facilitated collections by both ofus in Rock
- Caudal ramus slightly longer than
CreekPark, District ofColumbia and Mar>-
broad, anal somite with postero-
land, in 1990. Mr. and Mrs. William C.
dorsal expansions, most of caudal
Warner and Miss Elizabeth Warner guided
ramus not visible in dorsal view . . . and assisted JWR with collections in New
wilsonae Hunt, 1979
7. Apex oframus with three processes, Mexico in 1991. Dr. Horton H. Hobbs, Jr.
provided information on the career of Dr.
two ofthese digitiform and flexible
Marjorie Estelle Carter. Dr. Michael C. Swift
kodiakensis Wilson, 1975
collected the specimens ofElaphoidella bi-
- Apex of ramus with normal apical
dens from Maryland and donated them to
setae only reedi Wilson, 1975
the National Museum of Natural History-.
Key to males: Dr. Harry C. Yeatman contributed a pre-
viously unpublished record ofE. bidens.
1 Leg 5 exopodite with four setae; leg
2 endopodite article 2 with three or
Literature Cited
four setae 2
- Leg 5 exopodite with three setae; Apostolov. A. 1985. Etude sur quelques copepodcs
leg 2 endopodite article 2 with three harpacticoidesdugenreElaphoidella Chappuis,
setae shawangunkensis 1929 de Bulgarie avec une revision du genre.—
2. Leg 2 endopodite 2 with three Acta Musei Macedonici Scientianim Natural-
ium 17(7/145):133-163.
setae 3
Carter. M. E. 1944. Harpacticoid copepods of the
- Leg 2 endopodite 2 with four region of Mountain Lake. Virginia (With de-
setae 4 scriptionof.\foraria virginianan. sp.).—Journal
3. Caudal ramus with small distally ofthe Elisha Mitchell Scientific Society 60:158-
directed papilla at posterior Va of 166. plates 65-67.
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velopment of three species of freshwater har-
- Caudal ramus lacking ornament on pacticoid Copepoda.—Smithsonian Contribu-
distal Vi oflateral surface . . . amabilis tions to Zoology 1 19:1-26.
4. Leg 4 biarticulate, article 1 with Chappuis, P. A. 1929. Revision du genre Cantho-
none, article 2 with three setae 5 camptus Westwood (Note preliminaire).—Bu-
- Leg 4 uniarticulate, with two seta. e. letinul Societatii de §tiinte din Cluj 4:41-50.
Hamond. R. 1987. Non-marine harpacticoid cope-
bidens pods of Australia. I. Canthocamptidae of the
5. Caudal ramus tapering distally, genus Canthocamptus Westwood s. lat. and Fi-
146 PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON
bulacamptus, gen. nov., and including the de- win Nagele Verlag, Stuttgart, 100 pp. + Tafeln
scription of a related new species of Cantho- I-VIII.
camptus from New Caledonia.—Invertebrate Strayer, D. 1988 (1989). Crustaceans and mites (Ac-
Taxonomy 1:1023-1247. ari) from hyporheic and otherundergroundwa-
Hunt, G. W. 1979. Description ofElaphoidella wil- ters in southeastern New York.—Stygologia
sonaen. sp. (Canthocamptidae: Copepoda) from 4:192-207.
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.
100:694-699. pods II. New records and new species ofEla-
—
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.
(Crustacea) from Mexico, Guatemala, and Co- Crustaceana28:125-138. [Thearticleisactually
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Schmeil, O. 1893. Deutschlands freilebende Siis- U.S.A.; (TI) 372 Irifunecho, Yoichimachi,
swasser-Copepoden. II. Teil: Harpacticidae. Er- Hokkaido, 046 Japan.