NO. 3572 INDIAN OCEAN COPEPODS — CRESSET 5 



Family Euryphoridae Wilson, 1905 



Alebion gracilis Wilson, 1905 



Collections: From 1 specimen of Carcharinus albimarginatus at 

 station 400; from 1 specimen of Carcharinus leucas at station 409; from 

 1 specimen of Carcharinus species at station 381; from 1 specimen of 

 Carcharinus species at station 412; from 1 specimen of Galeocerdo cuvier 

 from Comores Island; from 1 specimen of Carcharinus longimanus at 

 station 291; from 1 specimen of Carcharinus obscurus from Durban. 



Habitat: Body surface and fins (dorsal surface usually). 



Alebion alatus Gnanamuthu, 1951 



Collection: From 1 specimen of Carcharinus limbatus from Nosy Be. 

 Habitat: Body surface. 



This copepod was originally described from a carcharinid shark of 

 India and this new record is only the second record of this species. 



Alebion elegans Capart, 1953 



Collection: From 1 specimen of Sphyrna mokarran at station 409. 



Habitat: Caudal fin. 



This copepod has previously been reported from the west coast of 

 Africa (Capart, 1953, and Vaissiere, 1959). This record extends the 

 known range to the east coast of Africa. 



Paralebion elongatus Wilson, 1911 



Collections: From 7 specimens of Carcharinus leucas from Nosy Be; 

 from 1 specimen of the same host from Durban. 



Habitat: Mouth and gill arches. 



This parasite is probably worldwide in its distribution. I have 

 collections from the Atlantic and Pacific as well as the Indian Ocean. 

 It is the only euryphorid that is routinely found in the mouth of the 

 host. 



Family Anthosomatidae Dana, 1853 



Anthosoma crassum (Abildgaard, 1794) 



Collection: From 1 specimen of Isurus species caught off East 

 London, South Africa; from 1 specimen of Isurus oxyrinchus at station 

 139. 



Habitat: Near base of teeth of the host. 



This copepod has been reported many times and apparently is 

 worldwide in distribution. 



