A Review of the Genus Eunice - Smithsonian Institution Libraries

230 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY
specimens from USNM 16880 and from setiger 45 in holotype,
present in all setigers thereafter, always single (except for
replacements). Hooks tapering, bent laterally towards distal;
heads distinct. Proximal teeth very much larger than distal
teeth, distally curved, laterally directed. Distal teeth nearly
erecL
UNKNOWN MORPHOLOGICAL FEATURES.—Pygidium.
EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEA-
TURES.—None.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 56, 58, 59. Unknown
Characters: 4,6, 15,23,42.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—Eunice multipectinata is listed with similar
species in Tables 27 and 32. It is first and foremost
characterized by gracile, strongly pectinate branchiae and
slender, digitiform antennae and notopodial cirri; the subacicular
hooks start rather late, compared to the two other species
listed in Table 32 with 10 or more branchial filaments.
128. Eunice murrayi Mclntosh, 1885
FIGURE 76j; TABLES 41,45
Eunice murrayi Mclntosh, 1885:288-289, figs. 48, 49, pi. 39: figs. 7, 8, pi.
20A: figs. 19, 20.
MATERIAL EXAMINED.—Holotype, BM(NH) ZK
1885.12.1.201, Simon's Bay, Cape of Good Hope, dredged, 33
m, Dec 1873.
DESCRIPTION.—Holotype complete with 101 setigers; total
length approximately 37 mm; maximal width 4 mm; length
through setiger 10, 7 mm. Anal cirri long, articulated.
Prostomium (Figure 76j) distinctly shorter and narrower than
peristomium, as deep as 1 /i of peristomium. Prostomial lobes
frontally rounded, dorsally flattened; median sulcus shallow.
Eyes not seen. Antennae in a horseshoe, evenly spaced, similar
in thickness. Ceratophores ring-shaped in all antennae, without
articulations. Ceratostyles tapering, with moniliform articulations;
complete left A-II with 8 articulations; incomplete A-III
with 10 articulations. A-I to setiger 1; A-II to setiger 3;
incomplete A-III currently to setiger 3; however, apparently
originally longer than A-II. Peristomium cylindrical. Separation
between rings distinct dorsally and ventrally; anterior ring
3 A of total peristomial length. Peristomial cirri to frontal margin
of peristomium, with 3 articulations of which basal ones more
than half of total cirral length.
Maxillary formula 1+1,5+5, 5+0,5+8, and 1+1. Mx III long,
positioned directly behind left Mx II.
Branchiae present, pectinate, distinctly longer than notopodial
cirri, not reduced in mid-body region, erect. Branchiae
from setiger 5 to setiger 28. Branchiae present to near posterior
end, present on less than 55% of total number of setigers. Two
first and last 5 branchiae single filaments, maximum; 9
filaments at about setiger 10. Branchial stems strong, stiff.
Filaments arranged in a neat comb, relatively short.
All neuropodial acicular lobes distally truncate; aciculae
emerging at midline. All pre- and postsetal lobes low,
transverse folds. Prebranchial ventral cirri digitiform. Between
setigers 5 and 30 ventral cirri basally moderately inflated.
Inflated bases ovate; narrow tips digitiform. Posterior ventral
cirri increasingly digitiform, increasing in length, by setiger 50
as long and prominent as notopodial cirri. All notopodial cirri
medially inflated, similar in length. Prebranchial cirri with 3 or
4 articulations; articulations increasingly indistinct posteriorly;
most notopodial cirri in branchial region with single articulation;
postbranchial notopodial cirri without articulations.
Nearly all setae broken. Shape of limbatc and pectinate setae
and aciculae currently indeterminable. Mclntosh (1885, pi.
20A: fig. 19) illustrated shafts of compound falcigcrs as mildly
inflated. Appendage large with both teeth well developed,
distinctly curved. Guards blunt; mucros absent. Pseudocompound
falcigcrs and compound spinigers absent. Aciculae
yellow, distally pointed; cross-sections round. Separation
between core and sheath indistinct in both aciculae and
subacicular hooks. Subacicular hooks yellow, tridentate with
teeth in a crest. Hooks first present from setiger 17.
UNKNOWN MORPHOLOGICAL FEATURES.—Many setal features;
pygidium and anal cirri.
EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEA-
TURES.—None.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 56, 58, 59. Unknown
Characters: 4,6, 13,14,23, 65-68, 81, 82.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—Eunice murrayi has been considered a synonym
of E. australis, which it resembles in distribution of branchiae
and in shape of the subacicular hooks. It is listed with similar
species in Tables 41 and 45. It resembles E. prayensis in having
the separation between the peristomial rings distinct on all
sides, but differs from the it in having the notopodial cirri
articulated in the anterior end; in E. prayensis the notopodial
cirri lack articulations.
129. Eunice mutabilis Gravier, 1900
FIGURE 77a-e; TABLES 33,38
Eunice mutabilis Gravier, 1900:245-248, figs. 105-109, pi. 13: figs. 71-74.
MATERIAL EXAMINED.—TWO syntypes, MNHN, Paris,
Djibouti, coll. Jousseaume and Coutiere, 1897.
COMMENTS ON MATERIAL EXAMINED.—The description is
based on the shorter of the two syntypes.
DESCRIPTION.—Both syntypes complete; one with 196
setigers; total length 95 mm; maximal width 6 mm; length
through setiger 10, 8 mm. Other syntype with 313 setigers;
length 117 mm; maximal width 7.5 mm; length through setiger