Carcinological Fauna of India. 



201 



fl. Carapace sub-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. 



L 





P 



II. Spines of the ros- 

 trum coalescent -=j 2, 

 in their basal half. 



Carapace broadly 

 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. 



h 



L.T-1 



I 



. Space between 

 the post-ocular 

 lobe and the supra- 

 ocular eave, as 

 well as that be- 

 tween the post- 

 ocnlar 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. 



h'- 



-Lt> 



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 Tylocarcinus. 



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

 stouter than those of the female : abdomen of the 

 female five-jointed Hoflophrts. 





Alliance I. Pisoii>a. 



Scyramathia, A. Milne-Edwards. 



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

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

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

 Anamathia (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- 

 47 



