TANA1S DULONGTT, 



ISOPODA . 

 A BE RR A NTH. 



129 



TAN AID JR. 



G 



TANAIS DULONGII. 



Specific character. Body smooth. Pleon destitute of fascicles of hairs. 

 Antenna? subequal in length, the upper pair much thicker than the inferior. 

 First pair of gnathopoda very robust ; second pair slender, and rather longer 

 than the pereiopoda. Third pair of pereiopoda with an appendage at the 

 base within: tail short, obtuse, terminal appendages short, three-jointed. 



Length not quite a 4 of an inch. 



Gammarus Didongii*(?) ANDOUIN, Explicat. PI. Egypte, t. xi. fig. 1.* 

 Tanais Dulonyii (?) MILNE EDWARDS, Crust, iii. p. 142. W.THOMP- 



SON, in Ann. Nat. Hist. xx. p. 245. WHITE, 

 Cat. Brit. Crust, p. 68 ? Pop. Hist. Brit. 

 Crust, p. 227 ? 

 A nisocJieirus Dulonyii (?) WESTWOOD, Annales Sci. Nat. xxvii. p. 330. 



THE type of this species, originally figured by Savigny, 

 was a native of the coast of Egypt ; it is, therefore, 

 with some doubt that we affirm its identity with speci- 



* Our outline figures P and v are copied from Savigny's plate. 

 VOL. IT. K 



