Zoological Society. Gl 



3. Descriptions of new Crustacea from the Eastern Seas. 

 By Adam White, F.L.S. 



Family Inachid^e. 



Genus Doclea, Leach. 



Doclea calcitrapa, White, n. s., List of Specimens of Crust, in 

 Brit. Mus. p. 4. 



Carapace with seventeen large spines on the back and sides, and 

 sixteen smaller tubercles on the upper surface ; seven of the large 

 spines down the middle of carapace, six of them erect, the sixth 

 springing from the base of the much-elongated horizontal terminal 

 spine ; the last of the spines of the side much longer than the other 

 three. The whole surface seems to have been covered with hairs. 

 The four hind pairs of legs are very long and slender. 



Breadth of carapace 1 inch 4 lines ; length 1 inch 10 lines. 



A species distinguishable at first sight from the four species hitherto 

 described, of all of which there are specimens in the Museum Col- 

 lection. 



Hal. Philippine Islands (Zebu) : Brit. Museum. From Mr. Cu- 

 ming's collection. 



Family Maiadje. 

 Hyastenus, White. 



Carapace rather oblong, rounded on the sides behind, before and 

 behind the eyes straight ; a slight transverse groove in upper orbit ; 

 front with two horns as long as the carapace, at first parallel and then 

 diverging and directed slightly downwards ; outer antennae with all 

 the joints cylindrical ; the insertion of the basal joint concealed by 

 the frontal horn. 



Fore-legs slender ; second pair of legs the longest and very slender ; 

 terminal joint with the edge spined. 



A genus allied to Hyas and Chorinus, the only species of which 

 was long ago figured in the large work of Seba. 



Hyastenus Seb^e, White, List of Specimens of Crust, in Brit. Mus. 



p. 6. 



Upper surface somewhat roughish, and covered with a delicate 

 down. 



Cancer araneus cornutus alter, Seba, Thes. iii. 45. t. 18. f. 12. 



Hab. Philippine Islands. From the collection of Mr. Cuming. 



Also found by Capt. Sir Edward Belcher, C.B. 



Family Parthenopid.e. 

 Ceratocarcinus, Adams & White. 

 Form of the carapace somewhat pentagonal ; the sides, over the 

 insertion of the first pair of legs, produced into a large spine directed 

 slightly forwards ; front wide and prominent, projecting on each side 

 in the form of conical horns, widely separate from each other. Eyes 

 rather small, peduncles short, the eye fitting into a groove on the side 



