A Review of the Genus Eunice - Smithsonian Institution Libraries

NUMBER 523 53
reaching beyond anterior peristomial ring. Peristomial cirri to
posterior end of anterior peristomial ring, without articulations.
The apparent maxillary formula 1+1,5+5, 5+0, and +4 and
1+1.
Branchiae present, single filaments, distinctly longer than
notopodial cirri, not reduced in mid-body region. Branchiae
from setiger 9 to sctiger 24. Branchiae terminating well before
posterior end.
Pectinate setae with one marginal tooth heavier than other
teeth, with -10 teeth. Shafts of compound hooks inflated,
marginally serrated. Appendages short, tapering, with very
large heads, bidentate. Both teeth of about same size, sharply
pointed. Distal teeth distinctly curved. Guards symmetrically
rounded, marginally serrated. Pseudocompound falcigers and
compound spinigers absent. Aciculae dark-colored, tapering,
straight. Subacicular hooks from setiger 17, dark-colored,
bidentate. Hooks strongly curved. Proximal teeth slightly larger
than distal teeth, directed laterally. Distal teeth slender, nearly
erect.
UNKNOWN MORPHOLOGICAL FEATURES.—Many features
unknown.
EXPECTED STATES OF SELECTED UNKNOWN FEATURES.—
Species too poorly known to make meaningful predictions.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 22. Unknown Characters:
1, 3-6, 7-12, 15, 24-26, 28, 34, 38-68, 74, 75, 78, 81,
82.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—This species is very poorly known; it has been
listed with similar taxa in Tables 24 and 26, but has not been
included in the key. In some features it resembles juveniles
recorded from Belize, Central America, but without access to
specimens from the type locality, such a relationship cannot be
established. Eunice amoureuxi is the only species listed in
Table 26 with single branchial filaments throughout.
8. Eunice amphiheliae Marion in Filhol, 1885
TABLE 27
Eunice amphiheliae Marion in Filhol, 1885:199.—Roule, 1896:446-449, pi.
19: figs. 1, 2, pi. 20: fig. 3. pi. 23: figs. 16-21, pi. 25: figs. 25, 26.
MATERIAL EXAMINED.—No specimens are available. The
following description is summarized, with updated terminology,
from Roule's description.
DESCRIPTION.—Complete specimens with 140-150 segments;
length 180-200 mm; width 7-10 mm.
Prostomium distinctly shorter and distinctly narrower than
peristomium. Peristomial lobes frontally truncate, dorsally
apparently flattened; median sulcus deep. Eyes absent. Antennae
apparently in straight line, similar in thickness. Ceratophores
ring-shaped in all antennae, without articulations. Ceratostyles
tapering, irregularly articulated. All antennae similar in
length; none reaching beyond peristomium. Peristomium
massive, cylindrical. Separation between rings distinct on all
sides or perhaps interrupted for short distance laterally; anterior
ring ~*/6 of total peristomial length. Peristomial cirri to anterior
edge of peristomium, tapering, slender, without articulations.
Apparent maxillary formula 1+1. 5+5, 8+0, +5, 1+1.
Illustration confused; number of teeth of Mx III and IV and
shape of maxillae cannot be determined from description or
illustration.
Branchiae present, pectinate, distinctly longer than notopodial
cirri, not reduced in mid-body region, erect. Branchiae
from setiger 4 to setigers 140-150, decreasing drastically in
size and complexity in posterior 2 /3 of body. Branchiae present
to near posterior end, in more than 65% of total number of
setigers. Maximally 7 filaments present. Stems tapering, longer
than filaments. Filaments digitiform, shorter than notopodial
cirri.
Median acicular lobes distally rounded to triangular or
conical with aciculae emerging at midline. Pre- and postsetal
lobes low, transverse folds. Ventral cirri tapering, thick.
Notopodial cirri long, slender, tapering, without articulations.
Shafts of compound hooks inflated. Appendages short,
tapering, with large heads, bidentate. Proximal teeth triangular,
directed laterally. Distal teeth smaller than proximal teeth,
nearly erect. Guards symmetrically sharply pointed, mucronate.
Pseudocompound falcigers and compound spinigers absent.
Aciculae paired, black. Subacicular hooks presumably black
and bidentate.
UNKNOWN MORPHOLOGICAL FEATURES.—Many features
unknown.
EXPECTED STATES OF SELECTED UNKNOWN FEATURES.—
Species too poorly known to make meaningful predictions.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 14. Unknown Characters:
4-6, 12, 16, 39, 40, 42, 53-60, 65-68, 74, 75, 78,
80-82.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—The species was originally named and briefly
characterized by Marion in Filhol (1885:199) as having
parchment-like tubes attached to stony corals from the Golfe de
Gascogne, collected during the 1880 cruise of the Travailleur;
also specifically mentioned were the eyeless condition of these
specimens. Roule (1896:446) redescribed the species on
material from the same area, taken during the Caudan cruises in
1895. He quoted Marion in Filhol as the author of the species;
nevertheless, he proceeded to describe it as new. Clearly,
Marion in Filhol (1885) is the author of the species, with Roule
(1896) as first revisor.
The species is incompletely known, and without access to
the types or material from the type locality, it is impossible to
decide if it is valid. It has been considered a synonym of E.
harassii and of E. pennata (Fauvel, 1923:399-401). Based on
the available information it is placed in group B-2 and is listed