A Review of the Genus Eunice - Smithsonian Institution Libraries

NUMBER 523 209
cirri, not reduced in mid-body region. Branchiae from setiger 8
to setiger 43. Branchiae terminating well before posterior end,
present on less than 55% of total number of setigers. Most
branchiae single, slender filaments (Figure 69e), up to 3
filaments present
Neuropodial acicular lobes distally truncate, usually somewhat
lobed between aciculae; aciculae emerging at midline. All
pre- and postsetal lobes low, transverse folds. First 4 ventral
cirri thick, tapering. From setiger 5 bases increasingly inflated,
by setiger 25 inflated bases projecting as ridges on ventral side
of neuropodia; narrow tips short and button-shaped Inflated
bases reduced from about setiger 50, by setiger 60 inflated
bases completely lost. Ventral cirri thick, tapering through
remainder of body. Anterior notopodial cirri strongly inflated
basally; notopodial cirri of branchial region tapering; postbranchial
notopodial cirri digitiform; all without articulations.
Limbaic setae present marginally smooth. Pectinate setae
(Figure 69d,g) flaring, flat. One marginal tooth slightly longer
than other teeth, -15 teeth present. Shafts of compound
falcigers (Figure 690 distally inflated, marginally smooth.
Appendages short, bidentate. Both teeth well developed.
Guards symmetrically bluntly pointed; mucros absent Pseudocompound
falcigers and compound spinigers absent Notoaciculae
present in base of notopodial cirri in middle part of
body. All neuropodia with multiple aciculae arranged in
dorsoventral row, at least 3 aciculae, but up to 6 aciculae
present, yellow, tapering to blunt tip (Figure 69c), especially
inferior aciculae slightly bent; cross-sections round. Separation
between core and sheath indistinct in both aciculae and
subacicular hooks. Subacicular hooks (Figure 69b) yellow,
bidentate. Hooks first present from setiger 29, present in all
setigers thereafter; most parapodia with 2 hooks, up to 4 hooks
present. Both teeth well developed, rather similar in size.
UNKNOWN MORPHOLOGICAL FEATURES.—Pygidium and
anal cirri.
EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEA-
TURES.—None.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 22, 34, 39,40, 56, 58,
59. Unknown Characters: 4,6, 17, 23,42.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—Unusual features of this species include the
multiple aciculae and subacicular hooks, combined with the
late start of branchiae and well-developed basal inflation of
ventral cirri. Eunice manihine is listed with similar species in
Tables 19 and 21.
Eunice manorae Aziz, 1938
Eunice manorae Aziz:1938:34-35. pi. 3: fig.3. pi. 6: fig. 34. pi. 7: figs. 61-64.
REMARKS.—The type is not available. The species apparently
belongs to group B-4. It has non-articulated, relatively
long antennae; peristomial cirri do not outreach peristomium. It
has branchiae from setiger 80 through posterior region; with up
to 5 filaments. Aziz' illustration indicates that the branchial
filaments are longer than the notopodial cirri.
Aciculae dark-colored; pectinate setae and compound hooks
present, the latter with both teeth well developed. The distal
tooth is illustrated as being considerably shorter than the
proximal teeth; guards are symmetrically rounded. Subacicular
hooks not illustrated nor mentioned in the text.
The development of branchiae and the presence of pectinate
setae precludes placement of the species in Palola; however, no
other related taxa are known to lack subacicular hooks. Without
access to the type, exact position of this species cannot be
determined and it is here considered indeterminable.
115. Eunice marenzelleri Gravier, 1900
FIGURE 69h-m; TABLES 33,37,50
Eunice marenzelleri Gravier, 1900:229-232. figs. 78-82, pi. 13: figs. 68,69.
MATERIAL EXAMINED.—TWO syntypes, MNHN, Paris,
Djibouti, Red Sea, coll. Coutiere (label marked no. 29).
COMMENTS ON MATERIAL EXAMINED.—Syntype material
contains two incomplete specimens; the long syntype has been
slightly desiccated at one time; illustrations are based on the
long syntype.
DESCRIPTION.—Short syntype with 91 setigers. Long syntype
with 257 setigers; length 150 mm; maximal width 5 mm;
length through setiger 10,11 mm.
Prostomium (Figure 69h) distinctly shorter and narrower
than peristomium, less than V2 as deep as peristomium.
Prostomial lobes frontally rounded, dorsally flattened; median
sulcus shallow. Eyes posterior to bases of A-I, black. Antennae
in a horseshoe, with A-I 11 emerging near peristomial fold; bases
of A-I and A-II well forward of A-III; A-I distinctly thicker
than other antennae. Ceratophores ring-shaped in all antennae,
without articulations. Ceratostyles digitiform, without articulations.
A-I to middle of peristomium; A-II and A-III to posterior
edge of peristomium. Peristomium cylindrical, massively
muscular. Separation between rings distinct dorsally and
ventrally; anterior ring 4 /s of total peristomial length. Peristomial
cirri short, nearly ovate, without articulations.
Maxillary formula for 2 syntypes 1+1, 444, 5+0, 4+5, and
1+1. Mx III and left Mx IV part of distal arc. Mx VI absent
Branchiae (Figure 69m) present single filaments, distinctly
longer than notopodial cirri. Branchiae from setiger 28 in both
specimens and present on last setigers present. All filaments
long. A single medioposterior segment on the smaller syntype
with 3 filaments in a palmate arrangement
Anterior neuropodial acicular lobes truncate; median and
posterior acicular lobes rounded; aciculae emerging at midline.
All presetal lobes low, transverse folds. Anterior postsetal lobes
as high as or slightly higher than acicular lobes, becoming low,
transverse folds from about setiger 25. Anterior ventral cirri