1895.] 



A, Alcock — Carcinological Fauna of India. 



201 



"1. Carapace sab-circular or globular : ros- 

 trum emarginate : ambulatory legs of 

 moderate length, stout : the entire body, 

 and the appendages in great part, dense- 

 ly tomentose Doclea. 



r 



II. Spines of the ros- 

 trum coalescent «{ 2. Carapace broadly 



in their basal half: 



triangular : tip 

 of the rostrum 

 deeply cleft : am- •{ 

 bulatory legs 

 extremely long 

 and slender. 



Post-ocular lobe 

 completely isolat- 

 ed both from the 

 supra-ocular eave 

 and from the ba- 

 sal antennal joint : 

 2nd pair of trunk- 

 legs never ap- 

 proaching six 

 times the length 

 of the carapace... 



Chorilibinia, 



I 



ii. Space between 

 the post-ocular 

 lobe and th e supra- 

 ocular eave, as 

 well as that be- 

 tween the post- 

 ocular lobe and 

 the basal antennal 

 joint occupied by 

 a spine : 2nd pair 

 of trunk- legs six 

 or more times the 

 length of the ca- 

 ^ rapace.... Egeria. 



Alliance 2. Lissoida. Supra-ocular eave in the closest contact with the post- 

 ocular process, and with its antero-external angle almost always (always in Indian 

 genera) very strongly produced forwards in the plane of the rostrum. 



i. Surface of carapace tubercular : chelipeds of the male 

 stouter than those of the female : abdomen of the 

 female seven-jointed Ttloc arcinus. 



ii. Surface of carapace spiny : chelipeds of the male not 

 stouter than those of the female : abdomen of the 

 female five-jointed Hoplophrts. 



Alliance I. Pisoida. 



Scyramathia, A. Milne- Edwards. 



Scyramathia, A. Milne-Edwards, Compt. Rend. XCI. 1881, p. 356. 

 Scyramathia, Sars, Norwegian North-Atlantic Expedn., Crustacea I-*-. p. 5. 

 Scyramathia, S. I. Smith, 'Albatross ' Crustacea (1884), 1886, p. 21. 

 Anamaihia (part) Miers, 'Challenger' Brachyura, p. 25. 



Carapace pyriform or elongate-triangular, armed either with 

 tubercles, or with long spines much like those of Anamathia- in their 

 uniform size and definite arrangement : the hepatic and lateral epi- 



