A Review of the Genus Eunice - Smithsonian Institution Libraries

188 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY
SCORED.—Inappropriate Characters: 56, 58, 59. Unknown
Characters: 1,2,4,6, 13, 14, 42,47, 50,63.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—Eunice kobiensis was considered a synonym of
E. websteri (as E. longicirrata Webster) by Imajima and
Hartman (1964:256); as already indicated by Fauchald (1969),
the proposed synonymy cannot be correct. Eunice kobiensis is
compared to similar species in Tables 19 and 20. Fauchald
(1969) compared it to a number of similar species; at this time
nothing can be added to that comparison and to discussions of
other species listed in Table 20.
99. Eunice langi (Treadwell, 1943)
FIGURE 61j-o; TABLES 24,26
Leodice langi Treadwell, 1943:3, figs. 14-18.
Eunice savignyi.—Hartman, 1956:283 [not Eunice savignyi Grube, 1878].
MATERIAL EXAMINED.—Holotype, AMHN 3739, Cape
Town, South Africa.
COMMENTS ON MATERIAL EXAMINED.—The anterior end
has been badly mangled and partly dissected, and all antennae
are lost, so no illustrations were attempted of the anterior end.
DESCRIPTION.—Holotype complete, of unknown sex, with
71 setigers; total length 42 mm; maximal width 2 mm; length
through setiger 10, 5.5 mm.
Prostomial lobes frontally obliquely truncate, dorsally
flattened; median sulcus shallow. Eyes not observed. Ceratophores
ring-shaped in all antennae. Ceratostyles missing.
Peristomial rings distinct dorsally and ventrally; anterior ring
3 A of total peristomial length. Peristomial cirri to setiger 3, with
6 distinct articulations.
Maxillary formula 1+1,6+5,9+0,6+8, and presumably 1+1
according to Treadwell (1943, fig.18).
Branchiae (Figure 61k) present, pectinate, distinctly longer
than notopodial cirri, not reduced in mid-body region, erect.
Branchiae from setiger 3 to setiger 39. Maximum 8 filaments at
or near setiger 15; most branchiae with 4 or 5 filaments. Stems
stout, strongly tapered, shorter than notopodial cirri. Filaments
digitiform, about as long as notopodial cirri.
Anterior neuropodial acicular lobes distally truncate; posterior
acicular lobes (Figure 61j) obliquely conical; aciculae
emerging at midline. Pre- and postsetal lobes low, transverse
folds. First 4 ventral cirri very long, digitiform, as long as
notopodial cirri. Ventral cirri basally inflated from setiger 5 to
setiger 36, with distinct, digitiform, obliquely attached tips.
Inflated bases increasing evenly from setiger 5 to setiger 15,
ovate, decreasing from setiger 30, missing posterior to setiger
36. Posterior ventral cirri short, nearly tubercular. Anterior
notopodial cirri slender, digitiform; posterior notopodial cirri
long, tapering. Notopodial cirri without articulations.
Shafts of pectinate setae (Figure 61m) slender, cylindrical.
Blades flat, strongly flaring. One marginal tooth longer than
other teeth, with -15 teeth. Shafts of compound falcigers
(Figure 611) gently inflated, marginally smooth. Appendages
long, tapering; heads very small, bidentate. Proximal teeth
much smaller than distal teeth, very short, triangular, directed
laterally. Distal teeth tapering, nearly erect. Guards asymmetrically
sharply pointed; mucros absent. Pscudocompound falcigers
and compound spinigers absent. Aciculae (Figure 61n)
single, amber-colored, tapering, distinctly bent in median and
posterior setigers; cross-sections round. Subacicular hooks
(Figure 61o) amber colored, bidentate. Hooks first present from
setiger 30, present in all setigers thereafter, always single
(except for replacements). Hooks tapering; heads small,
distinctly curved. Proximal and distal teeth similar in size.
Proximal teeth directed laterally, blunt. Distal teeth truncate,
directed laterally.
UNKNOWN MORPHOLOGICAL FEATURES.—Prostomial features;
relationship between Mx III and left Mx IV; pygidium
and anal cirri.
EXPECTED STATES OF SELECTED UNKNOWN FEATURES.—
Mx III short; forming a distal arc with left Mx IV.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 56, 58, 59. Unknown
Characters: 4, 6, 10-17, 19-24, 39-40,74, 78.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—21,2.
REMARKS.—The compound falcigers of E. langi resemble
those of E. tubifex, but compound spinigers are absent in E.
langi. The aciculae and subacicular hooks are amber colored,
rather than clear yellow; by definition this places the species in
B-l as defined by Fauchald (1970). It is listed with similar
species in Table 24 and 26.
Eunice langi was considered synonymous with E. savignyi
by Hartman (1956); it differs by having considerably darker
subacicular hooks and acicula. In addition the latter have
branchiae from setiger 4 through setiger 45 with a maximum of
12 filaments; E. langi has branchiae from setiger 3 through
setiger 39 with a maximum of eight filaments. Due to the
indeterminate status of E. savignyi, other differences or
similarities cannot be detailed at this time.
None of the character states listed in Table 26 are unique to
this species. Among species listed in Table 24, it is
characterized first and foremost by the very poor development
of the head of the compound falcigers and the sharply pointed,
but not mucronate, hood of these hooks.
100. Eunice laticeps Ehlers, 1868
FIGURE 62; TABLES 27, 30
Eunice tentaculata Quatrefages, 1866:317-318.
Eunice laliceps Ehlers, 1868:312.—Fauchald, 1986:251-252, figs. 46-50.
MATERIAL EXAMINED.—Holotype of E. tentaculata Quatrefages,
MNHN, Paris, A.l(R.)-1868-no. 52b. Port Western,
Australia, coll. Quoy and Gaimard, 1839.
COMMENTS ON MATERIAL EXAMINED.—The holotype of E.