GAiiji.viauji:, 59 



8. Montagua Guerinii. (Plate IX. fig. 5.) 

 Female. — Eyes round, Siipcrior iintenna) as long as the inferior ; 

 the peduncle of the inferior not longer than the peduncle of the 

 superior. Fii-st pair of giuithopoda as large as the second, and of 

 the same form, ovate ; palm not defined ; inferior margin ciliated, 

 and fiu-nished with two small teeth close together at the base of 

 the dactylos ; dactylos cui-ved, long, reaching to the posterior 

 extremity of the inferior margin ; the carpus and mcros are not 

 produced inferioi'l)-. 



Hab. Madagascar (Guerin-Meneville). 

 Collection of M. Gnerin-Meneville. 



I am indebted for this species to M. Guerin-MeneviUe, having 

 copied it from an unpublished drawing in his collection, and have 

 a.ssociated it vrith his name. The animal is figured rolled up : 

 in this position the coxae of the second pair of gnathopoda may 

 cover those of the first, vvithout their being diminutive. Should this 

 be the case, it will probably belong to the genus Stenothoe. To the 

 female of S. vaJidus it bears a strong resemblance ; in fact, it only 

 appeai-s to (Htfer in the large size of the first pah' of gnathopoda, 

 and the shortness of the peduncle of the inferior pair of antenna;. 



2. DANAIA. 

 Danaia, S^)ence Bate, Synopsis Brit. Amph., Ann. Nat. Hist. Feb. 1857. 

 .Vntennaj simple, subequal. MancUblcs without an appendage. 

 MaxilUpeds pediform. Fii'st pair of gnathopoda .simple ; the coxae 

 not largely developed. Second pair of gnathopoda siibchelate ; 

 coxa; largely developed. First and second pairs of perciopoda 

 having the coxae veiy large ; coxa; of the second excavated, to 

 receive the coxae of the third pair of pereiopoda. Posterior pair 

 of pleopoda unibranched, the ramus biarticulate. Telson simple. 



The genus is named after Professor Dana, to whom science is in- 

 debted for a \'aluable woi-k on Crustacea. 



1. Daaiaia dubia. (Plate X. fig. 1.) 



Danaia dubia, Spence Bute, Synopsis Brit. Amph., Ann. Nat. Hist. Feb. 

 1857. 



White, Hist, of Brit. Crust, p. 1(J7. 



Cephalon produced into a long straight rostrum ; the ocular margin 

 produced into a point nearly as long as the rostrum. Eyes 

 round, small. Superior antenna; longer tlian the inferior; the 

 |)ediin(lc of the inferior longer than the peduncle of the superior. 

 First pair of gnathopoda lung, sljglit. not siibcliehite, and witlioiit a 



