32 ZOOLOGY OF THE VOYAGE OF H.M.S. SAMARANG. 



minute incisions, instead of crenatures, on the posterior edge of the carapace. Their species, 

 the locality of which is unknown to Messrs. Edwards and Lucas, is probably a native of the 

 Eastern Archipelago, and with our new C. dorsalis forms a very interesting addition to a 

 genus which has been hitherto limited to but one species. 



2. CBYPTOPODIA FOPNICATA, Jinn. Eerbst. t. 6. f. 4. 



In juniore thorax rrmlto triangularior, ad angulos rotundior, postice directior, et superficies dorsalis 

 pluribus pustulis obsita est, quam in anirnalibus adultis ; chelse etiam breviores et crassiores sunt, frons 

 latior, rotundatior et distinctius crenulata, oculi majores, juga dorsalia erninentiora. 



Hab. Mare Sinense; vadis submersis concharum mortuarum et lapidum. 



Oar figure represents, most probably, the young of this species ; the carapace is more 

 decidedly triangular, more rounded at the angles, straighter behind, and the dorsal surface 

 more covered with pustules than in the adult individuals j the chelae, moreover, are shorter 

 and comparatively thicker, and the front is wider, more rounded and distinctly crenulated, 

 the eyes are of comparatively greater size and the dorsal ridges more prominent. 



Hab. China Sea; submerged banks of dead shells and stones. 



3. GONATONOTUS, Adams 8f White. 



Thorax pentagonalis, depressus ; anguli laterales acutissimi. 



Frons latissima, lamelliformis, dilatata, rotundata, ad fines subnictata; oculi magni, eminentes, 

 pedunculi breves in nictu profundiore ad latus iuserti; antennas exteriores, appendice terminali 

 elongata. 



Chela subcrassse ; carpus rotundatus et interne spinosus ; ungues in margine serrati. 



Pedes tertii et quarti paullo longiores secundus et quintis ; articuli tarsales secundi, tertii, quarti 

 et quinti parium, sequali magnitudine et crassitudine ; quinto pedum pari supra quart um inserto. 



Abdomen feminas septem articulis, tribus vel quatuor articulorum basalium supra conspiciendis. Mas 

 ignotus. 



Carapace pentagonal, depressed ; lateral angles very sharp. 



Front very wide, lamelliform, dilated, rounded, slightly notched at the end; eyes large, 

 prominent, peduncles short, inserted in a rather deep notch on the side. Outer antennae 

 with the terminal appendage elongated. 



Fore-legs rather thick ; fourth joint or wrist, rounded and spined on the inside, claws 

 serrated on the edge. 



Third and fourth pairs of legs rather longer than the second and fifth, tarsal joints of 

 second, third, fourth and fifth pairs of equal size and thickness ; fifth pair of legs inserted 

 above the fourth pair. 



Abdomen of female, seven-jointed, three or four of the basal joints seen from above. 

 Male unknown. 



This genus is allied to Fumedonus. 



