A Review of the Genus Eunice - Smithsonian Institution Libraries

NUMBER 523 103
diagnostic."
As indicated elsewhere, E. barvicensis is similar to E.
filamentosa, so presumably the name E. challenged was used
by Mclntosh as a manuscript name for another, similar species
from the Challenger expedition, which species cannot now be
identified and no material is available under this name in
BM(NH) (A. Muir, in litt.).
39. Eunice cincta (Kinberg, 1865)
FIGURE 30f-h; TABLES 33,40
Nicidion cincta Kinberg, 1865:564; 1910:43, pi. 16: fig. 21.
Eunice (Nicidion) cincta.—1 [artman, 1948:80-81.
MATERIAL EXAMINED.—Holotype, RM 418, Eimeo, Society
Islands, 0.3-1 m, Eugenie Expedition 1159. Kinberg
(1865:564) gave the locality information as "Mare pacificum
inter corallia mortua tacniarum exteriorum insulac Eimeo,
summa aqua vel fundo 1-4 pedum."
COMMENTS ON MATERIAL EXAMINED.—The anterior end
has been deeply dissected and the shape of the prostomium
cannot be determined accurately. The last 15 setigers are
extremely poorly preserved.
DESCRIPTION.—Holotype incomplete with 65 setigers (last
15 extremely poorly preserved); length through setiger 50 15
mm; maximal width 1.1 mm; length through setiger 10, 3 mm.
Ceratophores ring-shaped in all antennae, without articulations.
Ceratostyles thick and digitiform, wrinkled, but without
articulations. All antennae to posterior peristomial ring.
Separation between peristomial rings distinct on all sides;
anterior ring ~ l /i of total peristomial length. Peristomial cirri to
posterior part of anterior peristomial ring, ovate, without
articulations.
Jaws missing.
Branchiae absent.
Neuropodial acicular lobes rounded; aciculae emerging at
midline. Presetal lobes low, transverse folds. Anterior postsetal
lobes following outline of acicular lobes closely, becoming
low, transverse folds from about setiger 25. Anterior and
median ventral cirri thick, tapering. Anterior notopodial cirri
medially inflated, becoming digitiform in last distinct segments
in fragment, without articulations.
Limbate setae slender, marginally serrated. Shafts of
pectinate setae (Figure 300 very slender. Pectinate setae
flaring, flaL Both marginal teeth slightly longer than other
teeth; -15 teeth present. Shafts of compound falcigers (Figure
30g) distinctly inflated, marginally coarsely serrated. Appendages
slender with nearly parallel sides, bidentate. Proximal
teeth shorter than distal teeth, sharply pointed, directed basally.
Distal teeth slender, directed laterally. Guards asymmetrically
bluntly pointed, marginally serrated, without mucros. Pseudocompound
falcigers and compound spinigers absent. Aciculae
brown, bluntly conical, straight; cross-section round.
Subacicular hooks (Figure 30h) brown, bidentate. Hooks first
present from setiger 21, present in all setigers thereafter, single
at least through median setigers. Hooks with distinctly bent
necks. Proximal teeth slightly larger than distal teeth, directed
laterally. Distal teeth curved, directed laterally.
UNKNOWN MORPHOLOGICAL FEATURES.—Features associated
with the posterior setigers and with the poor state of
preservation.
EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEA-
TURES.—None.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 22, 31-42, 54, 55.
Unknown Characters: 1, 2, 4, 6-17, 24, 47, 50, 51, 57-60,
63, 74, 78.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—Eunice cincta is listed with similar species in
Tables 33 and 40. The shape of the subacicular hook resembles
the condition in E. mutilata; however, the latter is always
branchiated, even as a juvenile. Among the abranchiate species,
E. cincta is unusual in that it wholly lacks inflated bases in
median ventral cirri.
Eunice cingulata Claparede, 1868
Eunice cingulata Claparede, 1868:444-445, pi. 7: fig. 1.
Eunice purpurea.—Grube, 1878a:100.
REMARKS.—No type material exists of this or any other
species of Eunice described by Claparede. The following
summary is based on his description.
Prostomium deeply bilobed. Antennae short, with moniliform
articulations. Anterior peristomial ring very nearly as long
as posterior ring. Peristomial cirri to front edge of peristomium,
with moniliform articulations.
Branchiae present from setiger 8. First few single filaments,
all others strongly pectinate; maximum number of filaments
unknown. Presumably, branchiae continue to end of body.
Limbate setae marginally serrated. Pectinate setae with
marginal tooth very much longer and thicker than all other
teeth. Shafts of compound hooks inflated. Appendages short,
tapering. Proximal teeth triangular. Distal teeth curved. Guards
distally asymmetrically bluntly pointed. Aciculae and subacicular
hooks with dark cores and clear sheaths; aciculae
tapering distally to blunt, gently curved tips. Subacicular hooks
tapering to distinct heads. Proximal teeth directed laterally.
Eunice cingulata was well characterized by Claparede, who,
in addition to the description summarized above, emphasized
the dark violet color and the violet-and-white banding of the
anterior end and appendages. The species clearly is a member
of group B-2, but, based on the available information, cannot be
separated from a series of other species. It is here considered
indeterminable.