EEPOET ON THE ANNELIDA. 
27 
band rests on the cords, the lower part (next tlie ganglion) being more translucent and 
granular, the outer more opaque. 
The perivisceral lining is bordered with large nucleated granular cells — the perivisceral 
corpuscles. 
The proboscis has the usual structure. 
This species, subsequently to the remarks of Pallas and Savigny, formed the subject of 
the late Prof. Grube’s inaugural dissertation,^ chiefly with regard to the digestive, vas- 
cular, and nervous systems. It is a characteristic western form. The Ampliinome gigas 
in the collection of the British Museum is this species from the Atlantic Ocean. 
Prof. Grube mentioned it as one of the Annelids of Madeira in 1857, and it has since 
l3een found there by Prof. Langerhans, whose figures ^ of the bristles, however, deviate 
from those procured by the Challenger, since the serrations of both dorsal and ventral 
bristles are much fewer. This author notes the calcareous nature of the bristles, which 
in this respect agree with those of others of the group, e.g., Chloeia fucata.^ The form 
described by Dr. Baird under the name of Amphinonie didymoh7xmchiata,‘^ from the 
Island of Ascension, seems to approach this genus {Hermodice) in the size and structure of 
the caruncle and in other particulars. 
Eurijthoe, Kinberg. 
Eurythoe pacifca, Kinberg? (PI. II. figs. 3, 4; PI. III. fig. 3; PI. IIa. fig. 13; PI. 
IIIa. figs. 5-9). 
Habitat. — Several specimens occurred at Bermuda between tide-marks. It seems to 
extend to both great oceans, the coral reefs of the Pacific being a favourite haunt. Grube ® 
describes a form from Tahiti and the Nicobar Islands, which he doubtfully refers to the same 
species. Kinberg’s specimens came from the shores of the islands of Eimeo and Foua. 
The body is somewhat flattened and rectangular in section, slightly pointed in front, 
and gradually diminished posteriorly. The specimens are comparatively small, the 
longest measuring about 65 mm., with a breadth of 7 mm. One had one hundred and 
five body-segments. 
The snout differs from that in Hermodice in having a broad lobe in front, shaped 
somewhat like a hoof, and bearing the two tentacular cirri, one pair superiorl}^ in front 
of the eyes, and another interiorly toward the posterior border. The head carries 
the rather elongated and linear caruncle, which impinges] on the fourth body-segment, 
and has anteriorly the median tentacle ending in a filiform tip, the organ being 
1 De Pleione carunculata, Befiiomontii Prussonm, 1837. 
^ Die Wurmfauna Madeiras, Zeitschr. f. wiss. Zool., xxxiii. p. 277, Taf. xiv. fig. 8.^ 
2 Trans. Zool. Soc. Loncl, ix. p. 396. ^ Trans. Linn. Soc. Lond., xxiv. p. 449, pi. xlv. 
^ Annel. Novara-Exped., p. 8. 
