84 



Body covered, vvhen alive, with a ■vvhite mealy substance. Lantern 

 not luminous by day or night. Remains in a torpid statė during the 

 heat of the day, and becomes more active in the evening. 



Forest of Borneo near Tampasook. 



4. Short Descriptions of some new species of Crustacea in 



THE COLLECTION OF THE BkITISH MuSEUM. By AdAM WhiTE, 



F.L.S. 



Family PARTHENOPiDiE. 



Cryptopodia dorsalis, White and Adams, n. s. 



Carapace narrower and wider than the šame part in the Cryptopodia 

 fomicata, the greater part of the hack covered with slight pustules; on 

 the posterior part of the carapace are two deep grooves placed longi- 

 tudinally and shghtly bent, so as to have a lyre-sbaped form; posterior 

 edge of the carapace with coarser and rounder crenations than in 

 C. fomicata; the ridges on the chelse with blunter tubercles. 



This distinct and beautiful species of a singular genus %vas found 

 by Mr. Adams in the Sooloo Sea, \vhere the bottom was stony. 



When alive, it is of a dirty Hesh-colour, •«-ithbrown markings and 

 minute black specks ; on each cliela there is an orange linear spot : 

 under surface of a dead white, on the breast reddish. 



Mr. Adams informs me that the species of this genus resemble 

 those of Calappa in their habit of simulating death \vhen disturbed, 

 folding the chelse close to the front of the carapace and concealing 

 their legs under the dilated sides of the carapace. They are alvvays 

 found in deep water, while the Calappidce are found on sandy flats, 

 sometimes buried under the sand. 



Family Ocypodidje. 

 Gelasimus crassipes, White, Cat. Crust. in Brit. Mus. p. 36. 



Carapace very much arched, suddenly narrowed behind ; four hind 

 pair of legs thicker and stronger than in other species ; front with a 

 lobe, without narrow stalk. 



Hab. Philippine Islands (Siąuejor). From Mr. Cuming's collec- 

 tion. 



Gelasimus bellator, White, 1. c. 



Carapace with the fore-part just behind the insertion of eye-pedun- 

 cles sinuated, the front slightly dilated into a rounded lobe. Larger 

 hand with the fingers very long, the moveable with the sides nearly 

 parallel, t\vo or three larger tubercles on the edge near the base ; fixed 

 finger margined on the under side ; the cutting edge with a very 

 ■wide shallow tubercular sinus at base ; at the end of sinuB beyond the 

 middle a strong wide tooth, which gradually slopes down to the end, 

 ■vv'hich curves up. 



Hab. Philippine Islands. From Mr. Cuming's collection. 



Gelasimus cultrimanus, White, L c. p. 35. 

 Front between the eyes with a small dilated rounded lobe. Edge 



