188 A. Alcock — Carcinological Fauna of India. [No. 2, 



30. Ebalia looodmasoni, n. sp. Plate VII. fig. 3. 



Carapace sliarply hexagonal, its length just exceeds its breadth in 

 the male, its breadth is equal to its length in the female. 



Four large well-defined (especially in the male) granule-capped 

 swellings or tubercles mark, respectively, the cardiac, intestinal, and 

 branchial regions, and two small indistinct swellings mark the hepatic 

 reo-ions : the hollows between the larger swellings are elegantly punc- 

 tulate. 



Antero-lateral borders finely and inconspicuously, posfcero-lateral 

 and posterior borders finely and distinctly beaded ; the posterior border 

 prominent and straight, with its ends more prominent — giving it a 

 bilobed appearance. 



Front angularly emarginate or broadly bidentate. Eyes rather large 

 and not well concealed by tlie orbits. 



Exposed parts of sternum granular, the first segment, in the male, 

 with a strong longitudinal ridge or boss near the base of either cheliped. 



Chelipeds in both sexes half again as long as the carapace : arm 

 trigonal, its upper surface with some rows of enlarged beadlike granules 

 alono" both borders, its under surface with a broad tapering band of 

 similar granules : hand nearly twice as long as broad, and from J to J 

 longer than the fingers. 



Abdomen of male with a very strong terminal tooth on its penul- 

 timate segment. 



In the male the carapace is 5 millim. long and 4-8 millim. broad, 

 in the adult female it is 5 millim. in both dimensions. 



Log. Andamans. 



This species appears to be near Ehalia quadrata, A. M.-E., from 

 Bass' Straits, and to Miers' Ebalia rlioynhoidalis, minor and bituherculata, 

 from Japan. 



31. Ebalia sagittifera, n. sp. 



Carapace hexagonal, although hardly longer than broad yet of an 

 elongate appearance, owing to the unusual length and very gradual 

 convergence of the postero-lateral borders : the whole antero-lateral 

 margin is sharp, slightly curled and elegantly striated or milled : the 

 edge of the subhepatic regions, or pterygostomian ridges, are extremely 

 prominent, standing out on either side like a pair of little wings. In 

 the male the posterior margin bears a petaloid tubercle at either end 

 and a denticle in the middle line : in the adult female the lateral tuber- 

 cles are indistinct and the median tubercle absent. 



The front is emarginate, and part of the edge of the buccal cavern 

 can be seen beyond it in a dorsal view. 



