A Review of the Genus Eunice - Smithsonian Institution Libraries

342
MATERIAL EXAMINED.—TWO syntypes, BM(NH) ZK
1928.4.11.50, Wasin Harbour, near border of Kenya and
Tanganyika, dredged, Crossland Zanzibar and British East
Africa collection, 1901-1902, average depth 10 fathoms,
extensive cover of Telesto.
COMMENTS ON MATERIAL EXAMINED.—One of the two
syntypes is complete; the other is an anterior fragment.
DESCRIPTION.—Complete syntype of unknown sex; with 84
setigers; posterior regenerate including last 15 setigers; total
length 17 mm; maximal width 2.5 mm at setiger 10; length
through setiger 10, 6 mm. Anterior fragment with 77 setigers;
length 14 mm; width 2.0 mm.
Prostomium (Figure 116a) about as long and as wide as
peristomium, as deep as V2 of the peristomium. Prostomial
lobes large, frontally rounded, dorsally inflated; median sulcus
deep. Eyes between bases of A-I and A-II; black. Antennae in
a shallow horseshoe, evenly spaced, similar in thickness.
Ceratophores ring-shaped in all antennae, without articulations.
Ceratostyles sausage-shaped, without articulations; none projecting
clearly beyond tip of prostomium or beyond posterior
peristomial rings. Peristomium cylindrical, slightly flaring
ventrally. Separation between rings distinct dorsally and
ventrally, less distinct, but visible laterally; anterior ring ~ 2 /3 of
total peristomial length. Peristomial cirri barely to front edge of
posterior ring, tapering, without articulations.
Maxillary formula 1+1, 5+5, 4+0, 3+8, and 1+1 according
to Crossland (1904, fig. 65). Mx III part of distal arc with left
MxIV.
Branchiae absent.
Anterior neuropodial acicular lobes rounded; acicular lobes
conical in median and sharply pointed in far posterior setigers
(Figure 116b); aciculae emerging at midlinc. Presetal lobes
low, transverse folds. First 20 postsetal lobes distinct, rounded,
shorter than acicular lobes, following outline of acicular lobes
in median and posterior setigers. First 4 ventral cirri thick,
tapering. Ventral cirri basally indistinctly inflated in median
setigers. Inflated bases transverse welts; narrow tips absent.
Posterior ventral cirri without inflated bases, short, nearly
tubercular. Notopodial cirri short, without articulations; median
and posterior notopodial cirri increasingly filiform, retaining
same length as in anterior setigers. Notopodial cirri without
articulations.
Limbate setae not observed. Pectinate setae (Figure 116c)
short, flaring, furled. Both marginal teeth longer than other
teeth; -10 coarse teeth present. Shafts of compound falcigers
inflated, marginally smooth. Appendages bidentate. Guards
symmetrically rounded; mucros absent. Pseudocompound
falcigers and compound spinigers absent Aciculae single,
black, pointed, straight; cross-sections round. Subacicular
hooks (Figure 116d) black, bidentate. Hooks first present from
setiger 31 in 1 syntype and from setiger 27 in other syntype,
present in all setigers thereafter, always single (except for
replacements). Hooks tapering, with small head. Proximal teeth
SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY
smaller than distal teeth, directed laterally, triangular. Distal
teeth tapering, erect
UNKNOWN MORPHOLOGICAL FEATURES.—Relationship between
Mx III and left Mx IV; pygidium and anal cirri.
EXPECTED STATES OF SELECTED UNKNOWN FEATURES.—
Mx III short, forming part of distal arc with left Mx IV.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 22, 31-42, 56, 58, 59.
Unknown Characters: 74, 78.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—A new name is needed because the name E.
gracilis is preoccupied in the combination E. gracilis Grube,
1867.
The species is listed with similar species in Tables 33 and 40.
Three species in Table 40 combine a lack of articulations in the
ceratostyles with inflated bases of the ventral cirri limited to
median setigers. In addition to E. wasinensis, the two other
species are E. carihoea and E. goodei. In E. cariboea the
inflated bases are transverse ridges; in the two other species,
they are ovate and more or less free from the ventral edge of the
ncuropodia. In E. wasinensis the inflated ventral cirri lack a free
tip; such tips are present in E. goodei.
204. Eunice websteri Fauchald, 1969
FIGURE 116e-l; TABLES 19. 20
Eunice websteri Fauchald, 1969:12-14, fig. 6.
Eunice longicirrala Webster, 1884:318-319, pi. 12: figs. 75-80.
Leodice margantacea Vcrrill, 1900:644-645.
Leodice longicirrata.—Tie&dv/cM, 1921:11-14, figs. 3-12, pl.l: figs. 1-4 [not
Eunice longicirrala Kin berg, 1865].
Eunice longicirrala.—Hartman, 1942:9 [not Eunice longicirrala Kinberg,
1865].
MATERIAL EXAMINED.—Holotype, 1 specimen and 8
mounted slides, USNM 4792, Bermuda, coll. G. Brown Goode.
DESCRIPTION.—Holotype complete with 150 setigers; total
length 120 mm; maximal width 4 mm at setiger 10; length
through setiger 10, 8 mm. Body slightly dorsoventrally
flattened, but basically convex dorsally and more flattened
ventrally. Anal cirri as long as last 15 setigers, slender, with 15
cylindrical articulations.
Prostomium (Figure 116e) distinctly shorter and narrower
than peristomium, as deep as l /i of peristomium. Prostomial
lobes frontally truncate, dorsally flattened; median sulcus very
shallow. Eyes lateral to bases of A-II, dark. Antennae in a
horseshoe, evenly spaced, similar in thickness. Ceratophores
ring-shaped in all antennae, without articulations. Ceratostyles
slender and digitiform, with mostly long, cylindrical articulations.
Distal articulations in A-I short, very well set off from
each other and nearly moniliform; maximum number of
articulations 8 in A-I 11. A-I to posterior peristomial ring; A-II to
setiger 6; A-I 11 to setiger 8. Peristomium cylindrical. Separation
between rings distinct dorsally and ventrally; anterior ring