6 CRUSTACEA. 



HYAS coarctatus, Leach, Linn. Trans, xi. 329, Mai. t. 21,6. 

 Edw. Crust, i. 312. Sell, Brit. Crust. 35. Lissa fissirostra, 

 Say, Journ. Acacl. Sc. Phil. i. 79. Hyas serratus, Hailst. 

 Mag. Nat. Hist. viii. Jun. 



af. Males. Frith of Forth. Devon. Kent. 



g p. Females. Ditto. 



HYAS bufonius, n. s. 



a, Presented by the Lords of the Admiralty. 



NAXIA, Edwards. 



NAXIA diacantha, De Haan, Faun. Jap. 96, t. 24, /. 1. 



a, b. Var. Philippine Islands. From Mr. Cuming's collection. 



c. Var. Old collection. 



d. Var. Port Essington. From Mr. Driug's collection. 



HYASTENUS, White. 



HYASTENUS Sebae, White. Seba, Thes. iii. 45, t. 18, /. 12. 

 a c. Philippine Islands. From Mr. Cuming's collection. 

 d,e. Indian Ocean. Presented by Gen. Th. Hardwicke. 



CHORINUS, Leach. 



CHORINUS heros, Edw. Crust. i. 315. Cuv. R. A. (Crock), t. 29, 

 /. 2. Cancer her., Herbst. ii. 165, t. 42, /. 1. Latr. Enc. 

 Meth. x. 139. Chorinus barbirostris, Leach, Zool. Misc. 



a -/. W. Ind'es. Prom Mr. Scrivener's collection. 



g 1. W. Indies. Presented by H. B. Hillyer, Esq. 



MITHRAX, Leach. 



MITHRAX aculeatus, Edw. Crust, i. 321, Mao. de Zool. 1832. 



Cuv. R. A. (Croch), t. 27, /. 1. Cancer ac., Herbst. i. 248. 



t. 19,/. 104. 

 a. Male. W. Indies. 

 6, c. Females. W. Indies. 



MITHRAX spinosissimus, Edw., Mag. de Zool. (1832), t. 2, f. 3. 



Crust, i. 321. Maia spin. Lam. An. Sans Vert. v. 435. 



Parra. Desc. 136, t. 51, f. 1. 

 a, b. Males. W. Indies. 



MITHRAX verrucosus, Edw. Crust, i. 321. Mag. de Zool. 1832, 



pi. 4. Parra, pi. 44. 

 a. W. Indies. 



MITHRAX hispidus, Edw. Crust, i. 322, Mag. de Zool. (1832). 



Cancer hisp., Herbst., t. 18, /. 100. 

 a, b. Males. W. Indies. From Mr. Scrivener's collection. 



