South African Crustacea. 57 



M. Jules Bonnier's authoritative work. Therein he accepts two 

 divisions of the Epicaridea, called respectively Cryptoniscinse and 

 Bopyrin.se, thus using terminations commonly regarded as indicative 

 of sub-families under which to group numerous families. To his 

 Bopyrinse he assigns the Dajidae, Phryxidse, Bopyridas, and the 

 Entoniscidae, of which the first three were provisionally retained by 

 Sars in the family Bopyridae. The family is restricted by Bonnier to 

 parasites in the branchial cavity of decapod crustaceans. 



GEN. BATHYGYGE, Hansen. 



1897. Bathygyge, Hansen, Bulletin Mus. Comp. Zool. Harvard, 



vol. xxxi., p. 122. 

 1900. Bathygyge, Bonnier, Travaux de la Station zool. de Wimereux, 



vol. viii., p. 290. 

 1905. Bathygyge, H. Eichardson, Bulletin U.S. Nat. Mus., No. 54, 



pp. 499, 537. 



Hansen does not separate the generic from the specific characters. 

 Bonnier says that the pleon of the female suffices to characterise the 

 genus, as it has no side-plates, and the uropods, like the pleopods, 

 are biramous. 



BATHYGYGE GKANDIS, Hansen. 

 Plate XXXIII. 



1897. Bathygyge grandis, Hansen, Bull. Mus. Comp. zool., vol. xxxi., 



p. 122, pi. 6, figs. 2-2c. 

 1900. Bathygyge grandis, Bonnier, Travaux zool. Wimereux, vol. viii., 



p. 291, fig. in text. 

 1905. Bathygyge grandis, Eichardson, Bull. U.S. Nat. Mus., No. 54, 



p. 537, fig. in text. 



Hansen' s account, on which the other two depend, was based on 

 a male specimen and the fragment of a female. The latter consisted 

 of the pleon with the terminal part of the perseon bearing three legs 

 on one side and two on the other. They had occupied the branchial 

 cavity of Glyphocrangon spinulosa, Faxon, taken from a depth of 

 676 fathoms, in lat. 21 15' N., long. 106 23' W. 



That the South African specimens here figured belong to Hausen's 

 genus and species seems exceedingly probable, although, as 

 Hansen had only a portion of a female at his disposal and has not 

 figured that portion, some element of doubt remains. The carapace 

 of the African Glyphocrangon on the right side was enormously dis- 

 torted by the swollen marsupium of its female tenant. Her eggs form 



