GEIUA STELLATA. 



223 



DECAPOD A. 



Af.lCROURA. 



THALASSINAD.E. 



Gebia stellata. 



Specific Cliaructcr. Abdomen wholly crustaccous ; tail with the exterior la- 

 mella rounded, the interior subacuminate ; hands with granulated hairy lines. 



Cancer (Astacus) stellatus, 

 Gebia stellata, 



MONT. Trans. Lin. Soc. IX. t. iii. fig. 5, p. 89. 

 LEACH, Edin. Encycl. XI. p. 400. Malac. Brit. 



t. xxxi. f. 1 8. ED\V. Hist. Nat. Crust. II. p. 



313. 



THE carapace is close at the sides, the gastric region 

 hairy and sharply scabrous, elongate, triangular, and ter- 

 minating in a small acute rostrum. External antennae 

 with the setce about the length of the body. Anterior 

 legs with the arm elongate, slightly curved, with a small 

 tooth near the extremity ; wrist very little longer than 

 it is broad, furnished anteriorly with a sharp spine ; 

 hand three times as long as it is broad, with the move- 

 able finger long and slender, extending far beyond the 

 immoveable one : the second, to the fifth pair of legs, gra- 

 dually more slender. Abdomen contracted at its ex- 

 tremities ; the sides, as well as the dorsal portion, crus- 

 taccous. The tail, with the central lamina, narrowed 



