A Review of the Genus Eunice - Smithsonian Institution Libraries

146 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY
14 filaments. Notopodial cirri articulated; ventral cirri inflated
from about setiger 3 through setiger 28. Aciculae and
subacicular hooks black. Subacicular hooks bidentate.
Grube clearly had a specimen belonging to group B-2; it is
well described, but without access to the types, it is difficult to
differentiate it from a series of similar species. The species is
here considered indeterminable.
68. Eunice flavopicta Izuka, 1912
TABLES 27,29,30
Eunice flavopicta Izuka, 1912:121-123, pi. 14: figs. 1-5.
REMARKS.—The type material of this species has been lost,
according to Miura (1986:269), who considered the species
synonymous with E. aphroditois. Considering the complex
synonymy of the latter species it appears best to keep the two
apart, until the variability of E. aphroditois has been
established. The following represents a summary of the
information in the original description.
Body with 166 segments; length 215 mm; maximal width 6
mm at setiger 10. Body tapering relatively abruptly anteriorly
and slowly posteriorly. Anal cirri rather long. Color lightly
iridescent deep purple, with 3 bright yellow spots on dorsum of
each segment as transverse band on setiger 4.
Palpal region set off by frontal horizontal grooves. Eyes at
bases of A-I. Antennae faintly articulated. A-I to posterior end
of posterior peristomial ring; A-II to setiger 1; A-III to setiger
3. Peristomial rings distinct at least dorsally. Peristomial cirri
short, presumably not outreaching peristomium.
Maxillary formula 1+1,4+5, 6+0, 4+9, 1+1, and 1+1.
Branchiae from setiger 5 to end of body. All() branchiae
pectinate; maximum 18 or 19 filaments at setiger 14, this
number maintained to about setiger 50, decreasing slowly
posteriorly. Branchiae longer than notopodial cirri. Stems erect,
tapering, longer than notopodial cirri. Filaments digitiform,
shorter than notopodial cirri.
Ventral cirri basally inflated. Notopodial cirri basally
inflated, vaguely articulated, tapering to blunt tips.
Limbate setae slender, marginally smooth. Pectinate setae
tapering, flat. Marginal teeth no longer than other teeth, with 9
teeth. Shafts of compound falcigers tapering, marginally finely
serrated, with distinct internal striations. Appendages broadbased,
triangular, short, bidentate. Proximal teeth triangular,
directed laterally. Distal teeth slender, erect; 6 small teeth
present between proximal and distal teeth. Guards bluntly
pointed, marginally serrated. Aciculae and presumably subacicular
hooks dark. Subacicular hooks tapering, bidentate;
heads bent. Proximal teeth larger than distal teeth, directed
laterally. Distal teeth short, curved.
Eunice flavopicta is compared to similar species in Tables
27, 29, and 30. The presence of small denticles between the
proximal and distal teeth of the compound falciger is unusual
and would need to be confirmed on fresh material.
69. Eunice floridana (Pourtales, 1867)
FIGURE 47d-m; TABLES 5, 27.32
Marphysa floridana Pourtales, 1867:108.
Eunice floridana— Khlcrs, 1887:88-90, pi. 22: figs. 1-7.
MATERIAL EXAMINED.—MCZ 674, off the Sambos, 229 m,
8 specimens.
COMMENTS ON MATERIAL EXAMINED.—The description is
based on one of the complete specimens; the information about
the other specimens is summarized in Table 5.
DESCRIPTION.—Specimen illustrated complete, of unknown
sex, with 111 setigers; length 80 mm; maximal width 6 mm at
setiger 10; length through setiger 10, 10.5 mm. Anterior
dorsum strongly convex; anterior ventrum slightly flattened;
further posteriorly body dorsovcntrally flattened. Long anal
cirri tapering, as long as last 5 setigers together, without
articulations.
Prostomium (Figure 47d) distinctly shorter and narrower
than peristomium, less than '/2 as deep as peristomium.
Prostomial lobes frontally obliquely truncate, slightly dorsally
flattened; median sulcus shallow. Eyes between bases of A-I
and A-II, large purple. Antennae in shallow horseshoe; A-I
separated by gap from A-II and A-III, similar in thickness.
Ccratophores ring-shaped in all antennae, without articulations.
Ceratostyles slender and nearly digitiform, tapering only
slightly distally, with up to 7 long, irregular, cylindrical
articulations. Articulations distally drop-shaped in A-I. A-I to
posterior peristomial ring; A-II to setiger 3; A-III to setiger 8.
Other specimens with A-II to setiger 6-7 and A-III to setigers
12-13. Peristomium short, flaring anteriorly; lower lip muscular.
Separation between rings distinct dorsally and ventrally;
anterior ring A /s of total peristomial length. Peristomial cirri at
least to middle of prostomium, slender, tapering, with 4-5
articulations.
Maxillary formula 1+1,6+6, 7-9+0, 6+8, 1+1, and 1+1. Mx
III part of distal arc with left Mx IV.
Branchiae (Figure 47e, j) present, pectinate, distinctly longer
than notopodial cirri, reduced in mid-body region, erect.
Branchiae from setigers 9 (8-10) to 111. Branchiae present to
near posterior end, present on more than 65% of total number
of setigers. All branchiae pectinate, except in 2 cases first
branchiae. Maximum 8 filaments. Branchiae reduced to 3-4
filaments in median region, increasing to 7-8 filaments in
penultimate setigers. Branchial stems thick, tapering, shorter
than notopodial cirri. Filaments digitiform, shorter than
notopodial cirri.
Anterior neuropodial acicular lobes (Figure 470 symmetrically
rounded, becoming obliquely truncate with aciculae
emerging near superior, higher end. Presetal lobes low,
transverse folds. Postsetal lobes symmetrically rounded free
lobes through about setiger 60-75, thereafter reduced to low
folds following outline of acicular lobes closely. Anterior
ventral cirri thick and tapering, becoming basally strongly