372 Miscellaneous. 
of a true cell. If we press down a part of the body, these cor- 
puscles accumulate in certain regions of the circulatory system, 
and form masses of an intense red colour. The oscillations of the 
globules also may be followed by observing a young animal by trans- 
mitted light. The corpuscles are set in motion by a colourless 
liquid, in which they float without any constant direction. There 
is a median dorsal vessel; and two lateral vessels are situated on 
the ventral face. Beneath the nervous ganglia the dorsal vessel 
bifureates and anastomoses with the two lateral trunks, which rise 
up, follow the posterior margin of the superior ganglia, and con- 
tinue on to form the cephalic loop. The dorsal canal gives origin 
to regularly spaced transverse loops. Each of these branches is 
continued to the flank of the animal, then bends towards the ventral 
face and opens into the lateral vessel. There consequently exist 
numerous capillary ramifications, which are exceptional in Nemer- 
tians, but recall to mind the arrangement indicated by M. Blanchard 
in Cerebratulus liguricus. 
The proboscis is greatly developed ; and the animal usually projects 
it at the least contact. The papille of the extraversile region are 
covered with small, ovoid, pedunculate bodies. The bulb seems to 
be relatively narrow ; its armature can be recognized only with great 
difficulty. It consists of a recurved, granular, yellowish plate, repre- 
senting the handle of the style of the ordinary armed Nemertians, 
and borne upon ahyaline mass representing the “ muscular setting” 
of the Ommatopleans. Several little points are inserted upon the 
keel of this plate, which is furnished with two bundles of special 
muscles. These points are in all respects identical with those of 
the style of the Enopla. I have counted from nine to twenty upon 
a single plate; the number varies with the age of the individuals. 
Lastly, on each side of the bulb there are eight or ten styligerous 
vesicles, containing four or five points furnished with a basal ring, 
and similar to those which arm the central plate. It is interesting 
to remark that this multiplicity of the styligerous vesicles is in 
agreement with the great number of small ducts belonging to the 
principal armature. 
One cannot hesitate to admit that the structure of this proboscis 
necessitates the establishment of a distinct genus in the group of 
armed Nemertians. I adopt the name of Drepanophorus proposed 
by M. Hubrecht. This Nemertian certainly cannot remain among 
the unarmed Cerebratuli ; but I cannot accept the different species 
adopted by the Dutch naturalist. Among the worms found at Mar- 
seilles, notwithstanding certain differences of coloration dependent 
on age, I only see one well-characterized form for which it is 
desirable to retain the specific name given by M. de Quatrefages. 
The geographical range of Drepanophorus, however, seems to be 
pretty large: it is not uncommon in Sicily and in the Bay of 
Naples ; Grube has collected it in the Adriatic ; it inhabits the deep 
coralligenous regions of the Gulf of Marseilles; and its existence in 
the ocean is placed beyond doubt by Keferstein’s figures.— Comptes - 
Rendus, April 5, 1875, p. 893. 
