16 



I,EPTOPODIAD^. 



DECAPOD A. 



BRACHYURA. 



LEPTOPODIADM. 



Inaclms Dorynchus. Leach. 



Specific character. — Rostrum bifid, extending beyond the third joint of the pedun- 

 cle of the antennge ; gastric region witli three spines, two anterior, and tlie third 

 nnich longer, forming a triangle. Second pair of legs not more than three times 

 the total length of the body. 



Tnachus Dorynclius^ Leach, Edinb. Enc. art. Crust, p. 431. Id. Make. Brit, 



t. xxii. f. 7-8. Edw. Hist. Crust, p. 288. Couch, 

 Cornish Fauna, p. 65. 



The general form of this species is very similar to the 

 former, but it is less globose. The carapace is triangular, 

 longer than it is broad. The rostrum is short, some- 

 what hastifo]-m, and in most slightly bifid ; although in 

 some specimens the division is more considerable. The 

 antennre, the eyes, and orbits, as well as the external 



