A Review of the Genus Eunice - Smithsonian Institution Libraries

192 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY
erect. Branchiae from setiger 3 to setiger 184 (five setigers
before pygidium). Branchiae present to near posterior end,
present on more than 65% of total number of setigers. First
branchia single filaments; maximum 10 filaments at about
setiger 15. Stems short, flexible. Filaments slender, longer than
stems.
Neuropodial acicular lobes rounded; aciculae emerging at
midline. Pre- and postsetal lobes low, transverse folds. Anterior
ventral cirri tapering, becoming basally inflated by setiger 10.
Inflated bases modest, ovate, completely reduced by setiger 35;
narrow tips tapering. Posterior ventral cirri broadly attached
forming shallow open scoops covering lower edge of neuropodia.
Notopodial cirri long, tapering to slender digiuform tips,
with 4 to 5 articulations anteriorly and 3 to 4 articulations
posteriorly.
Limbate setae narrow, marginally smooth. Pectinate setae
(Figure 63e) tapering, flat. One marginal tooth longer than
other teeth, with -15 very slender teeth. Shafts of compound
falcigers (Figure 63d, 0 tapering, marginally coarsely serrated,
internally striated. Appendages narrow, tapering towards small
head, bidentate. Proximal teeth very much smaller than distal
teeth, nearly button-shaped, directed laterally. Distal teeth
tapering, directed obliquely distally. Guards asymmetrically
bluntly pointed, marginally smooth; mucros absent. Pseudocompound
falcigers and compound spinigers absent. Aciculae
mostly paired, dark brown or black, tapering to blunt tips,
slightly curved; cross-sections round. Subacicular hooks
(Figure 63g) dark brown to black, bidentate. Hooks first present
from setiger 32-33, present in all setigers thereafter, always
single (except for replacements). Hooks tapering to small head.
Proximal teeth very much larger than distal teeth. Both teeth
directed distally. Subacicular hooks darker than aciculae.
UNKNOWN MORPHOLOGICAL FEATURES.—Pygidium and
anal cirri.
EXPECTED STATES OF SELECTED UNKNOWN FEATURES.—
None.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 56, 58, 59. Unknown
Characters: 4,6, 74, 78.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—Grube (1870a) indicated that the type material
contained specimens of two previously known taxa. As
indicated above, one lot consists of an unidentifiable arabellid;
the remaining material currently present under this name in
MNHN, Paris, appears to belong to a single species in group
B-2. The fragment from no. 49a agrees with the other two
specimens in structure of parapodia and setae.
Eunice laurillardi is listed with similar species in Tables 27
and 32. Of the three species with 10 or more branchial filaments
listed in Table 32, E. bowerbanki has A-III distinctly longer
than A-II; A-II and III are similar in length in E. laurillardi; the
length of A-III is unknown in E. multipectinata. The
peristomial cirri reach the middle of the prostomium in E.
laurillardi and the middle of the peristomium in E. multipectinata.
102. Eunice leptocirris Grube, 1870
Eunice leptocirris Grube, 187Ob:55.
FIGURE 64a-f; TABLES 22.23
MATERIAL EXAMINED.—Holotype, ZMH V-795, Fiji Islands.
DESCRIPTION.—Holotype incomplete, of unknown sex, with
141 setigers; length 110 mm; maximal width 3 mm; length
through setiger 10, 9 mm. Body cylindrical, with very
prominent notopodial cirri.
Prostomium (Figure 64a) distinctly shorter and narrower
than peristomium, as deep as '/2 of peristomium. Prostomial
lobes frontally obliquely truncate, dorsally slightly flattened;
median sulcus deep. Eyes not observed. Antennae in horseshoe;
A-I and A-II separated from A-III by gap, similar in
thickness. Ccratophorcs long in all antennae, without articulations.
Ccratostylcs slender and digitiform, without articulations.
A-I to posterior peristomial ring; A-II to setiger 6; A-III
to setiger 9. Peristomium cylindrical. Separation between
peristomial rings distinct on all sides; anterior ring - 2 /s of total
peristomial length. Peristomial cirri reaching well beyond tip of
prostomium, slender and tapering, without articulations.
Jaws not examined.
Branchiae (Figure 64b) present, pectinate, distinctly shorter
than notopodial cirri, not reduced in mid-body region, erect.
Branchiae from setiger 3 to end of fragment. Maximum 6
filaments at about setiger 15. Stems tapering, slender, shorter
than filaments. Filaments slender, nearly filiform, shorter than
notopodial cirri.
Neuropodial acicular lobes rounded or slightly triangular,
aciculae emerging above midline. Pre- and postsetal lobes low,
transverse folds. First 4 ventral cirri thick, tapering. Ventral
cirri basally inflated from about setiger 5. Inflated bases
modest, ovate, very long, distally obliquely truncate tips
present through median seugers. Inflation gradually lost from
about setiger 60; posteriormost ventral cirri slender and
digitiform, distally obliquely truncate. Notopodial cirri very
long, distally tapering to very slender tips; bases modestly
inflated, especially in anteriormost setigers; articulations
absent.
Limbate setae slender, marginally smooth. Pectinate setae
(Figure 64e) tapering, flaL One marginal tooth longer than
thicker than other teeth, with -10 teeth. Shafts of compound
falcigers (Figure 64c) slightly inflated, marginally smooth;
beaks distinct. Appendages slender, with distinct heads,
bidentate. Proximal teeth smaller than distal teeth, narrowly
triangular, directed laterally. Distal teeth slender, strongly
curved, directed laterally. Guards asymmetrically bluntly
pointed, marginally smooth; mucros absent. Pseudocompound
falcigers and compound spinigers absenL Aciculae (Figure