162 
THE VOYAGE OF H.M.S. CHALLENGER. 
Eriphia, Latreille. 
j Eriphia, Latreille, Crust, in Regne Animal de Cuvier, ed. 1, vol. iii. p. 18, 1817. 
„ Milne Edwards, Hist. Nat. Crust., vol. i. p. 425, 1834. 
Carapace moderately convex, but little broader than long, with the antero -lateral 
margins much shorter than the postero-lateral margins ; the frontal region broad, but 
the front not prominent : the antero-lateral margins (and usually the front) are spinu- 
liferous, and the parts adjacent are usually armed with tubercles or short spines. The 
post-abdomen in the male is usually distinctly seven- jointed. The eye-peduncles are 
short and deeply set in the orbits, whose prominent margins are often granulated ; it is 
broadly united with the front at its interior angle, so that the antenna is completely 
excluded from the orbit. The epistoma is transverse ; the ridges of the endostome or 
palate are strongly defined. The basal antennal joint barely reaches the inferior margin 
of the front, but the flagellum is more developed than in many genera of Cancroidea. 
The ischium of the endognath of the exterior maxillipedes is not produced at its antero- 
internal angle ; the merus is truncated but not emarginate at the distal extremity, and 
scarcely, if at all, emarginate at its antero-internal angle. The chelipedes (in the adult 
male) are considerably developed and usually unequal ; fingers distally acute or subacute ; 
ambulatory legs of moderate length, with the joints neither carinated nor spiniferous ; 
dactyli styliform, nearly straight. 
The following are species of this genus : — 
Eriphia spinifrons (Herbst). Mediterranean and Black Seas ; Canary Islands ; 
Madeira; Japan (?); Singapore (?) (Coll. Brit. Mus.). 
Eriphia Isevimana, Milne Edwards = Eriphia rugosa, Milne Edwards ( nom . 
ined. ?); Eriphia fordii, MacLeay, and Eriphia smithii, MacLeay, var.; 
Eriphia trapeziformis, Hess. Indo-Pacific Region. 
Eriphia scabricula, Dana. Indo-Pacific Region. 
Eriphia gonagra (Fabricius). Florida to Brazil (Rio de Janeiro). 
Eriphia armata, Dana. East Patagonia. 
Eriphia squamata, Stimpson. West American Coasts (California to Chili) ; 
(perhaps a variety of Eriphia gonagra). 
Eriphia granulosa, A. Milne Edwards. Chili. 
