TANAIS DULONGII. 129 
ABERRANTIA, 

TANAIS DULONGII. 
Specific character. Body smooth. Pleon destitute of fascicles of hairs. 
Antenne 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 } of an inch. 
Gammarus Dulongii’(?) | Anpovutn, Explicat. Pl. Egypte, t. xi. fig. 1.* 
Tanais Dulongit (2) MityE Epwarps, Crust. iii. p. 142. W.THompe- 
son, in Ann, Nat. Hist. xx. p. 245. Wuuirs, 
Cat. Brit. Crust. p. 68? Pop. Hist. Brit. 
Crust. p. 227 ? 
Anisocheirus Dulongii (?) Wxstwoop, Annales Sci. Nat. xxvii. p. 330. 
TueE 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. II. K 
