A Review of the Genus Eunice - Smithsonian Institution Libraries

194 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY
64d) paired, yellow, most tapering distally to nearly straight,
blunt tips, some very abruptly tapering with short, nearly
nipple-shaped tips; cross-sections round. Separation between
core and sheath indistinct in both aciculae and subacicular
hooks. Subacicular hooks (Figure 64f) yellow, bidentate.
Hooks first present from setiger 51, present in all setigers
thereafter, always single (except for replacements). Proximal
teeth much larger than distal teeth, very thick, short, triangular,
directed laterally. Distal teeth short, blunt, erect.
UNKNOWN MORPHOLOGICAL FEATURES.—Jaw structure;
pygidium and anal cirri.
EXPECTED STATES OF SELECTED UNKNOWN FEATURES.—
None.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 22, 56, 58, 59. Unknown
Characters: 1, 2,4, 6, 13, 14, 36-40.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—37,1;
38,1.
REMARKS.—Eunice leptocirris has not been reported since it
was originally described by Grubc (1870b:55); the original
description was so brief that the species has been considered
indeterminable by most authors. The species belong to group
A-2 and is listed with similar species in Tables 22 and 23. The
only other species listed in Table 23 without articulated
ceratostyles is E. schizobranchia. Among other differences, the
latter has dark aciculae and yellow subacicular hooks; E.
leptocirris has both the aciculae and subacicular hooks
light-colored.
Eunice leucodon Ehlers, 1901:261.
Eunice leucodon Ehlers, 1901
REMARKS.—Examination of the type material demonstrated
that this species has the jaw structure and setal complement of
the genus Palola. It is included in a treatment of that genus
currently in preparation.
Eunice leuconuchalis Benham, 1900
Eunice leuconuchalis Benham, 1900:21-22.—Fauchald, 1986:252-253.
Eunice australis.—Ehlers, 1907:12.—Fauchald, 1986:244-245, figs. 9-14.
REMARKS.—Justification for considering this species a
synonym of E. australis was reviewed by Fauchald (1986).
103. Eunice leucosticta Grube, 1878
Eunice leucosiicia Grube, 1878a:103.
FIGURE 64g-i; TABLES 33,37
MATERIAL EXAMINED.—Slide of parapodium from holotype,
Zool. Mus. Berlin, F-2044, East Africa, coll. v.d. Decken.
DESCRIPTION.—Slide of a posterior parapodium, presumably
near segment 120, without branchiae, but apparently not a
segment immediately in front of the pygidium.
Species described by Grube (1878a: 103) with 131 segments;
total length 130 mm. Color dark red, densely studded with
white spots. Three median antennae of same length, reaching
segment 4 (including peristomium).
Maxillary formula (rewritten from Grube) 1+1, 5+5, 10+0,
4+6, and 1+1.
Branchiae from setiger 14 and 15 (presumably on either side
of body) and continued to setiger 113, terminating well before
end of specimen. Where best developed with 4 filaments, but 3
filaments by far most common number. Filaments short, no
longer than short notopodial cirri.
Neuropodia (Figure 64g) distally evenly rounded; aciculae
emerging above midline. Pre- and postsctal lobes low folds.
Posterior ventral cirri large, distally tapering, basally moderately
inflated. Notopodial cirri short, digiliform in parapodium
examined.
Parapodium with a thick bundle of limbatc setae, a number
of compound falcigcrs, and a few pectinate setae. Shafts of
compound falcigcrs (Figure 64h) inflated, marginally smooth.
Appendages short triangular, bidcnlatc. Tcelh similar in size.
Proximal teeth tapering, curved, directed laterally. Distal teeth
tapering, nearly erect. Guards symmetrically rounded; mucros
absent. Pscudocompound falcigcrs and compound spinigers
absent. Aciculae single, with dark brown cores and clear
sheaths, tapering to straight lips; cross-sections round. Subacicular
hooks (Figure 64i) with dark brown cores and clear
sheaths. Hooks distally abruptly tapered. Proximal teeth larger
than distal tcelh, tapering, directed laterally. Distal teeth
abruptly tapering, directed obliquely distally.
UNKNOWN MORPHOLOGICAL FEATURES.—All features associated
with anterior and median parts of the body.
EXPECTED STATES OF SELECTED UNKNOWN FEATURES.—
None.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: None known. Unknown
Characters: 3-22, 24-29, 31-34, 38-40, 42, 45, 46,
48,49, 51-56, 60-62, 65-68, 80-82.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—Eunice leucosiicia was considered a synonym
of E. afra by Hartman (1959). Eunice leucosticta appears to
differ from E. afra in that the antennae are much longer than in
that species and in that the two teeth on the subacicular hooks
are directed laterally rather than distally as in E. afra. It is listed
with similar species in Tables 33 and 37. It is too poorly known
to be included in the key or to be discussed in detail in relation
to similar species listed in Table 37.
104. Eunice levibranchia (Hoagland, 1920)
FIGURE 65a-d; TABLES 33,37
Leodice levibranchia Hoagland, 1920:614-615, pi. 50: figs. 1-8.
MATERIAL EXAMINED.—Holotype, USNM 19018, Alba-