INACHUS LEPTOCHIRUS. 
Pan. X12. 
I. manibus brachiisque in utroque sexu tenuibus, rostro hastiformi, testa anticé tuberculis 
duobus obsoletis cum spina triangulum delinientibus, deinde spina utrinque, postea spinis 
duabus in lineam subrectam digestis, (pectore MARis inter pedes anticos elevato glaberrimo 
polito. ) 
Fig. 1, Inachus leptochirus mas mag. natur. 2. mMAris abdomen auctum. 3. Marts 
pectus mag. nat. 
Mr. John Cranch discovered this species of Inachus on the Western coast of Devon or 
Cornwall ; and it has since been taken from a crab pot in Bigbury Bay, by C. Prideaux, Esq. 
It is easily distinguished from Inachus Dorhynchus by its more slender arms, and by the 
number and disposition of the spines on the back. The tubercle also on the breast of the 
male is a very striking and curious character. 
