

J898.] A. Alcock — Carcinological Fauna of India. 229 



the carapace, has much the same shape as in Trapezia, but its anterior 

 border, though serrated, is not expanded ; the lower border of the hand 

 is sharp and somewhat dilated posteriorly, as in Trapezia : the inner angle 

 of the wrist is rounded, but sometimes carries a small spinule. 



The legs are slender smooth and polished, and have a few hairs 

 distally 



Colours in spirit yellowish white, fingers sometimes blackish in 

 their basal half. 



Length of carapace of largest specimen 9 millim., breadth 11 millim. 



In the Indian Museum are 11 specimens from the Andaman Sea 

 at depths between 130 and 290 fms. 



Alliance III. Domecioida. 

 Domecia, Eydoux and Souleyet. 

 Domecia, Eydoux and Souleyet, Voy. Bonite, Crust. Zool. vol. i. p. 234 : Lucas 

 in Jacquinot's Voy. Astrolabe, Zool. vol. iii. Crust, p. 48. 



Domaecius, Dana, Silliman's Amer. Journ. Sci. and Arts, (2) XII. 1851, p. 128, 

 and U. S. Expl. Exp. Crnst. pt. i. pp. 230, 251. 



Domecia, A. Milne Edwards, Nouv. Archiv. du Mus. IX. 1873, p. 263, and Miss. 

 Sci. Mex. Crust, p. 345. 



? Neleus, Desbonne and Schramm, Crust. Gaudaloupe, p. 35. 



Carapace somewhat oval transversely but much contracted pos- 

 teriorly, flat, somewhat hairy, with no trace of regions. 



The f ronto-orbital border is not much less than the greatest breadth 

 of the carapace. The front is profusely spinate, the spines being sharp, 

 a little curved, and falling into about six tufts or groups separated by 

 more or less well-marked intervals. 



The antero-lateral borders pass backwards with but little outward 

 slope : they are a little shorter than the concave and convergent postero- 

 lateral borders, and are armed with numerous sharp curved spines. 



The orbits are at the antero-lateral angles of the carapace aud do 

 not conceal the eyes, their edge shows no fissures or sutures : their 

 upper and lower inner angles are broadly in contact, or almost in con- 

 tact, so as to exclude the antennae. 



The antennules fold nearly trausversely. The basal antennal joint 

 hardly reaches the front, though its outer angle is produced towards 

 the front : the flagellum is short — hardly as long as the orbit. 



The buccal cavern is broad : the crests of the endostome are not 

 very strong ; nor is the foliaceous process of the 1st maxillipeds pro- 

 duced far forwards : the external maxillipeds are very large, and the 

 merus is remarkably broad and short. 



The chelipeds are somewhat unequal, and are short and not very 

 massive ; the arm is almost entirely hidden by the carapace : fingers 

 compressed, pointed. 



