210 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Family SERPULIILE. 
EUFOMATUS Phil. 
Eupomatus parvus, n. sp. 
In this species I have placed provisionally a few small specimens found on Bryozoa skeletons 
from Boqueron Bay and station 6062. It is not improbable that they are immature specimens of some 
species already described. They are very small. Length of body, 6 mm. Branchiae, 2 mm. Opercu- 
lum and stalk, 3 mm. Eight bran chi* on a side, with a rudimentary pseudoperculum opposite func- 
tional one. Branchiae colorless, without pinnae at tip. Stalk of operculum smooth. About 30 spines 
around edge of operculum. From upper surface of latter arise 8 long spines. These are enlarged at 
the base, curved and sharp at the end. At end each has sharp spines. (Figs. 79 from the side, 80 
from rear. ) Dorsal setae of thorax like E. uncincilus. ( Ehlers, Annelids of the Blake, p. 285. ) 
Both Ehlers and Schmarda (Neue Wirbellose Thiere, p. 29) describe in Eupomatus abdominal 
setae with comb-shaped expanded ends. There are none of these in E. parvus. Abdominal setae very 
long, acicular; 7 thoracic segments; about 45 abdominal segments. Tori of anterior segments long, of 
posterior ones shorter. Uncini like those of E. uncinatus. 
This species differs from E. uncinatus in the structure of its 
operculum, in number of branchiae ( E. uncinatus, according to Ehlers, 
has 18 on a side), and in absence of comb-shapecl abdominal setae. 
VERMILIA (Lam.) Phil. 
Vermilia annulata Schmarda. 
Verm-ilia annulata Schmarda, Neue Wirbellose Thiere, p. 28, pi. 21, fig. 176. Ehlers, 
Annelids of the Blake, p. 308, pi. 58, figs. 12-16; pi. 59, figs. 1-3. 
An empty shell; collected from station 6064. 
POMATOSTEGUS Schm. 
Pomatostegus stellatus Abildgaard. 
Terebella stellatus Abildgaard, Schriften der Gesellschaft Naturforsch. Freunde 
zu Berlin, Bd. 9, 1789, p. 142. 
Pomatostegus stellatus Morch, Revisio critica a. a. o., p. 50. 
Above references quoted from Ehlers, Annelids of the Blake, p. 296. 
Ehlers says the operculum consists of four circular plates, while the end of the stalk which projects 
above the last plate bears a crown of little hook-shaped teeth. As Grube has pointed out (Annulata 
Semperiana, p. 272), each of these opercular plates is situated on a basal star-shaped plate, the attach- 
ment being so close that the basal piece is difficult to see. If, however, the terminal plate be pulled 
off, its stalk of attachment will show, on its end, this smaller star-shaped piece. The specimens from 
Porto Rico had one, three, and live of these plates on the operculum. Evidently the reduced number 
is due simply to the loss of plates originally present, and the star-shaped termination is merely the basal 
piece of a plate that has pulled off. 
.Collected from station 6076, Caballo Blanco Reef, Guanica Bay, Ensenada Honda (Culebra). 
Family HERMELLID7E. 
Hermella varians, n. sp. 
Apparently very closely related to II. bicornis (Schmarda, Neue Wirbellose Thiere, p. 24, pi. 20, 
figs. 173a, 173, 1735), with which it agrees in the shape of the head, in the number and arrangement of 
the outer pale* (about thirty on a side), in the possession of twelve lappets on either side, just below 
the circle of outer pale*, and in the pair of jaw-like spines on the dorsal surface of the head. These 
spines are dark brown, stouter, and more jaw -like than in II. bicornis, and the inner pale* are much 
less numerous, only four on a side. The outer pale* are not toothed, but are broad flat plates showing 
longitudinal striations under high power. Pale* of body segments with broad, flat end, with entire 
margin and end irregularly serrated. Set* of ventral bundle of two kinds, one long, entire, very 
delicate, the other with toothed edges (fig. 81). Tentacles not very numerous; one on either side very 
much larger and longer than the rest. The specimen was badly preserved, only the head and a few' 
anterior segments remaining. The color had all been lost (formalin) except a small purple brown 
spot on the ventral surface of one of the anterior segments. 
Collected from station 6067. 
79. 80. 81. 
Fig. 79. — Spine from operculum of 
Eupomatus p>arvus, seen from side, 
X 30. 
Fig. 80. — Same, seen from rear, x 30. 
Fig. 81. — Seta of Hermella varians, 
X 600. 
