A Review of the Genus Eunice - Smithsonian Institution Libraries

186
SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY
EXPECTED STATES OF SELECTED UNKNOWN FEATURES.—
None.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 56, 60. Unknown
Characters: 4,6.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—Kinberg (1865) erected the genus Eriphyle for
species of Eunice with quadrilobate prostomia, including E.
gigantea Savigny (actually Lamarck, K. Fauchald comment), E.
aphroditois Pallas, and E. violacea Grube. The genus has not
been recognized by later authors, including Ehlers (1868), who
renamed Kinberg's species, because Kinberg's species name
was preoccupied in the combination Eunice capensis Schmarda
(1861).
Eunice kinbergi has been considered a synonym of E.
aphroditois: two forms both belong to group B-2 and are
similar, as indicated in Table 27. However, E. kinbergi has
articulated notopodial cirri and cylindrical articulations in the
ceratostyles; E. aphroditois lacks articulations of both structures.
Eunice kinbergi is one of two species in Table 29 with
basally inflated ventral cirri continued to the posterior end; the
other species is E. plicata. The latter has only about five
branchial filaments; the former has 22 filaments.
Eunice kinbergi (Webster, 1884)
Nicidion kinbergi Webster, 1884:320, pi. 12: figs. 81-88 [not Eunice kinbergi
Ehlers, 1868:306].
Eunice (Nicidion) kinbergi.—Hartman, 1944:124; 1959:313.
REMARKS.—Originally described in Nicidion, this species
must be renamed, because the name, once the genus Nicidion
was fused with Eunice, became pre-occupied in the combination
E. kinbergi Ehlers, 1868. The species is here renamed E.
goodei.
98. Eunice kobiensis Mclntosh, 1885
FIGURE 61a-i; TABLES 19,20
Eunice kobiensis Mclntosh, 1885:278-280, figs. 37, 38, pi. 38: figs. 12, 13, pi.
20A: figs. 1, 3.—Fauchald, 1969: 4-6. fig. 2a-g.
MATERIAL EXAMINED.—Holotype, BM(NH) ZK.
1885.12.1.197, Dredged off Kobe, Japan, 8-50 fathoms.
Challenger.
COMMENTS ON MATERIAL EXAMINED.—The specimen has
been frontally dissected and the jaw apparatus removed; it is cut
into two pieces. Two sets of maxillae are present in a small vial
accompanying the specimen; the maxillary formula is the same
for both sets, even if one set appears too large to fit the
holotype.
DESCRIPTION.—Holotype incomplete, of unknown sex, with
131 setigers; length 55 mm; maximal width 3.5 mm; length
through setiger 10, 6.5 mm.
Prostomium (Figure 61a) distinctly shorter and narrower
than peristomium, less than x ti as deep as peristomium.
Prostomial lobes frontally rounded, dorsally slightly flattened;
median sulcus deep. Antennae in shallow horseshoe, evenly
spaced, similar in thickness. Ceratophores ring-shaped in all
antennae, without articulations. Ceratostyles slender, tapering,
with up to 5 long, cylindrical articulations. A-I to posterior
peristomial ring; A-I I to sctigcr 3; A-I 11 to sctiger 8.
Peristomium cylindrical. Separation between rings distinct on
all sides; anterior ring ~ 2 h of total peristomial length.
Peristomial cirri to middle of anterior peristomial ring, slender,
with 4 articulations.
Maxillary formula 1+1, 7+8, 7+0, 10+12, and 1+1. Mx III
nearly as long as left Mx II; located behind Max II.
Branchiae (Figure 61c) present, pectinate, distinctly longer
than notopodial cirri, not reduced in mid-body region, erect.
Branchiae from sctigcr 3 to sctigcr 41. Branchiae terminating
well before posterior end, present on less than 55% of total
number of setigers. Three first and last 2 pairs single filaments,
all others pectinate with up to 8 filaments. Stems slender,
tapering, about as long as notopodial cirri. Filaments slender,
about as long as notopodial cirri.
Prc- and postbranchial ncuropodial acicular lobes (Figure
61b, 0 distally rounded; acicular lobes in branchial region
distally bluntly conical; aciculac emerging at midline. Pre- and
postsetal lobes low, transverse folds. Prc- and postbranchial
ventral cirri thick, tapering. Ventral cirri basally inflated from
about setiger 4. Inflated bases ovate; tips thick and tapering.
Anterior notopodial cirri long, medially inflated, becoming
increasingly slender and tapering in branchial and postbranchial
setigers. Prebranchial and branchial notopodial cirri with
up to 3 long, cylindrical articulations; postbranchial notopodial
cirri without articulations.
Limbate setae slender. Pectinate setae (Figure 6Id) narrow,
tapering, flat. One marginal tooth distinctly longer than other
teeth, with -10 teeth. Shafts of compound falcigers (Figure
61c,g) gently inflated, marginally finely dentate at least in some
hooks. Appendages narrow, tapering, bidentate. Proximal teeth
smaller than distal teeth, triangular, directed laterally or slightly
distally. Distal teeth gently curved, blunt or pointed. Guards
asymmetrically pointed; mucros absent. Pseudocompound
falcigers and compound spinigers absent. Aciculae (Figure 61 i)
paired, yellow, pointed, straight or gently curved; crosssections
round. Separation between core and sheath indistinct
in both aciculae and subacicular hooks. Subacicular hooks
(Figure 61 h) yellow, bidentate. Hooks first present from setiger
30, present in all setigers thereafter, always single (except for
replacements). Hooks tapering; head distinct. Proximal and
distal teeth similar in size. Proximal teeth triangular, directed
laterally. Distal teeth curved, distinctly narrower than proximal
teeth.
UNKNOWN MORPHOLOGICAL FEATURES.—Features associated
with far posterior parapodia; pygidium and anal cirri.
EXPECTED STATES OF SELECTED UNKNOWN FEATURES.—
None.
CHARACTERS
USED IN PREPARATION OF KEY NOT