A Review of the Genus Eunice - Smithsonian Institution Libraries

NUMBER 523 207
falcigers agree well with the other parapodium present. It is
here assumed that parapodium number indicated is erroneous.
Eunice magnified belongs to group B-4; it differs from E. afra
and related species in that the branchiae are very well
developed as far back as setiger 96; it is listed with similar
species in Tables 33 and 37-39. It is too poorly known to be
included in the key and cannot really be discussed in detail in
relation to other species in tables 37-39.
113. FM nice make mo ana (Chamberlin, 1919)
TABLES 46.47
Leodice makemoana Chamberlin, 1919a:233-236, plate S3: figs. 1-11.
MATERIAL EXAMINED.—Holotype, USNM 19396, Makemo,
Paumotu Islands (= Tuamotu Archipelago), 21 Oct 1899.
COMMENTS ON MATERIAL EXAMINED.—The holotype and
only known specimen of species has been frontally deeply
dissected and has been dry at one time; all setae are broken, so
no meaningful illustrations can be made. The following
remarks are based on Chambcrlin's original description in
addition to the few observations that could be made on the
specimen.
DESCRIPTION.—Holotype complete with 92 setigers; total
length 20 mm; maximal width 1 mm; length through setiger 10,
3.5 mm.
Prostomium distinctly shorter than peristomium. Prostomial
lobes frontally rounded, dorsally inflated. Eyes behind bases of
A-I. Ceratophores ring-shaped in all antennae, without articulations.
Ceratostyles with up to 15 moniliform articulations in
A-I 11. A-I to middle of peristomium; A-II to setiger 3; A-III to
setiger 4.
Maxillary formula (re-written from Chamberlin, 1919a:236):
1+1, 6+7, 8+0, 8+ll(12), and 1+1.
Branchiae from setiger 7 to 6 setigers from posterior end.
Branchiae present to near posterior end, present on more than
65% of total number of setigers. All branchiae single filaments.
Neuropodial acicular lobes distally rounded or truncate.
Pre- and postsetal lobes low, transverse folds. First few ventral
cirri thick, tapering, becoming basally inflated in anterior
branchial region. Posteriorly inflated bases decreasing in
importance; far posterior ventral cirri slender, resembling
notopodial cirri. All notopodial cirri medially inflated, articulated
with relatively short, vague articulations, shorter and
more slender in posterior than in anterior setigers.
Pectinate setae tapering, with -10 coarse teeth. One marginal
tooth much longer than other teeth. Shafts of compound
falcigers inflated. Appendages short, bidentate. Both teeth
distally well curved. Guards asymmetrically bluntly pointed;
mucros absent. Pseudocompound falcigers and compound
spinigers absent. Aciculae paired, yellow; ventral aciculae
slender, distally pointed, curved ventrally; dorsal aciculae
thick, distally blunt, possibly slightly hammer-headed; crosssections
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 28. Fangs decreasing in size from large main fang to
very small distal fang.
UNKNOWN MORPHOLOGICAL FEATURES.—Many features
from all parts of the body.
EXPECTED STATE OF UNKNOWN MORPHOLOGICAL FEA-
TURES.—None.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 33, 34, 39, 40,42, 58,
59. Unknown Characters: 4, 6, 9, 11, 12, 15-17, 20, 24-29,
44,51,54-56,65,67,68,81,82.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—Eunice makemoana is listed with similar
species in Tables 46 and 47. It appears unique in the group in
having single branchial filaments in all setigers; all other
species in group have branched branchiae at least in some
setigers. As pointed out by Chamberlin (1919a:236), the
reduced condition of branchiae might be considered a larval
feature, but the sexually mature state of the individual argues
for retaining separate status of specimen.
114. Eunice manihine Longbottom, 1972
FIGURE 69a-g; TABLES 19,21
Eunice manihine Longbottom, 1972:339-344, figs. 1-17.
MATERIAL EXAMINED.—Holotype, BM(NH) ZB 1971.1,
western Indian Ocean, Cosmoledo, S of Menai Island, 10°S,
47°E, foul-hooked, 421 m, coral debris, 6 Feb 1969, coll. M.R.
Longbottom, Royal Society Indian Ocean Deep Slope Fishing
Expedition.
DESCRIPTION.—Holotype complete with 127 setigers; total
length 75 mm; maximal width 5 mm; length through setiger 10,
9 mm.
Prostomium (Figure 69a) distinctly shorter and narrower
than peristomium, less than l /2 as deep as peristomium.
Prostomial lobes frontally obliquely truncate, dorsally flattened;
median sulcus deep. Eyes absent Antennae arranged in
a horseshoe, evenly spaced. Ceratophores ring-shaped in all
antennae, without articulations. Only a single A-II attached to
prostomium, slender and tapering, without articulations, reaching
setiger 10. Another ceratostyle, presumably A-III, loose in
vial, same shape as A-II, considerably longer, probably
reaching setiger 20. Peristomium much longer ventrally than
dorsally, projecting forward nearly to tip of prostomium, with
a distinct muscular lower lip. Separation between rings distinct
dorsally and ventrally; anterior ring 2 h of total length dorsally,
~ 3 /4 ventrally. Peristomial cirri to middle of prostomium,
slender and digitiform, without articulations.
Maxillary formula 1+1, 12+11, 12+0, 11+13, and 1+1
according to Longbottom (1972).
Branchiae present, palmate, distinctly longer than notopodial