104 MR, P. W. BASSETT-SMITH ON [ Feb. 3, 
4. On new Parasitic Copepoda from Zanzibar and East Africa, 
collected by Mr. Cyril Crossland, B.A., B.Sc. By Statt- 
Surgeon P. W. Bassert-Smiru, R.N., F.Z.S. 
[Received December 4, 1902. | 
(Text-figures 11 & 12.) 
Mr. Cyril Crossland, in his recent examination of the marine 
fauna of Zanzibar and British East Africa, obtained several 
specimens of parasitic and semiparasitic Copepods, three of which 
he has been kind enough to allow me to examine. 
These curiously deformed and often grotesquely-shaped animals 
are frequently found attached to the gills, &c., or to the surface of 
fish and other marine animals. 
A large number from the former which are now described from 
a variety of different hosts, and from wide geographical areas, 
I enumerated in Proc. Zool. Soc. 1899, p. 438; to this paper 
1 have appended a list of addenda, which I have drawn up with 
the kind assistance of Mr. E. Bergrotti, of Tammerfers, and 
others. 
Not only fish but a number of other marine animals are un- 
doubtedly infested with these parasites, though at present little 
information concerning them has been collected ; the specimens of 
Mr. Crossland are therefore particularly interesting. 
Gerstacker, in Bronn’s ‘ Klass. und Ordn. des Thier- Reichs,’ 
1866-79, Crustacea, vol. v. Copepoda, p. 774, mentions five genera 
found on Nudibranch Mollusca: Doridicola Lyd., Holidicola Sars, 
belonging to the family Ergasilide; Artotrogus Boeck, to the family 
Ascomyzontide ; and Splanchnotropus Hance. and Jsmaiha Bergh, 
to the family Chrondracanthidz, Also nine genera from various 
Vermes, p. 773. 
Of the three specimens of Mr. Crossland, two were taken from 
the kidneys of species of Pleurobranchids (not determined) and 
one from the skin of a Sipunculid (Aspidosiphon). 
As they were only single specimens it was impossible to dissect 
them, and therefore the descriptions are necessarily mcomplete. 
The first two evidently belong to the family Chondracanthide, 
but do not fall in with the descriptions of any known genus; they 
appear to be most nearly related to the genus Splanchnotropus of 
Hancock (Trans. Linn. Soc. vol. xxiv. pp. 51, 55), two species of 
which he describes, S. gracilis and S. brevipes, taken from Nudi- 
branchs; the present specimens differ from them, however, in the 
complete absence of antennze and articulate limbs, and in having 
the external ovaries elongated and the eggs arranged in single 
series. 
I have therefore provisionally placed them in a new genus, 
Chondrocarpus, following closely after Splanchnotropus Hane. and 
Diocus Fabr. 
CHONDROCARPUS, gen. nov. 
. Cephalothorax coriaceous, elongated, with four lateral short 
