A Review of the Genus Eunice - Smithsonian Institution Libraries

NUMBER 523 47
4. Eunice afra Peters, 1854
FIGURE 6; TABLES 33,35
Eunice afra Peters. 1854:611.—Ehlers, 1897:166.
Eunice collaris Grube, 1869:494-495 [in part, see below].
MATERIAL EXAMINED.—Holotype, ZMB 46, Ibo, Mozambique,
coll. Peters; 2 syntypes of E. collaris, ZMB F2004 and
2015, Tor, Red Sea, coll. Ehrenberg. One slide marked "Type,
BM(NH) ZB 1984.69."
COMMENTS ON MATERIAL EXAMINED.—The description is
based on the holotype, with comments on the 2 syntypes of E.
collaris where appropriate. Peters (1854:611) gave the type
locality as "Qucrimba-Inscln (Ibo)."
DESCRIPTION.—Holotype incomplete of unknown sex, with
43 sctigcrs; total length 32 mm; maximal width 6 mm; length
through sctigcr 10, 10 mm. Anterior body cylindrical; dorsal
and ventral surfaces convex, appearing truncate frontally. Body
tapering very slowly posteriorly, becoming slightly flattened
dorsovcnt.ally, tapering abruptly near pygidium. Anal cirri
unknown.
Prostomium (Figure 6a, 0 distinctly shorter than peristomium,
about as wide as peristomium, as deep as x ji of the
pcristomium. Prostomial lobes frontally rounded, dorsally
inflated; median sulcus deep. Eyes posterior to bases of A-I,
black. Antennae in a horseshoe, evenly spaced, with A-I 11
slimmer than other four. A-I pyriform; A-I I and A-I 11
digitiform; A-I 11 distinctly narrower than other antennae.
Ceratophores short, ring-shaped, without articulations. Ceratostyles
with up to 5 indistinct cylindrical articulations mostly
confined to distal half of A-I I and A-I 11. A-I basally inflated;
A-I I and A-I 11 digitiform. A-I to front edge of posterior
peristomial ring; A-I I and III to setiger 1. Peristomium slightly
inflated, cylindrical; lower lip distinct and muscular. Separation
between rings distinct dorsally and ventrally; anterior ring
about 3 /