1900.] A. Alcock— Garcinological Fauna of India. 421 



In the Indian Museum are 8 specimens from Ceylon, Madras, the 

 Mahanaddi Delta, and the Ganges Delta. The carapace of a large one 

 is 40 millim. long and 43 millim. broad. 



107. Sesarma Brochii, de Man. 



Sesarma BrocMi, de Man, Zool. Jahrb., Syst., 1887, p. 651, and IX. 1895-97, p. 171, 

 and Archiv f. Naturges. LIII. 1887, i. p. 373, pi. xvi. fig. 3 : Thallwitz, Abhand. 

 Zool. Mus. Dresden, 1890-91, No. 3, p. 39 : Ortmann, Zool. Jahrb., Syst., VII. 

 1893-94, p. 721. 



Resembles 8. tseniolatum, but differs in the following characters : — 



(1) the carapace is shallow and much depressed, its length is just 

 equal to its breadth between the antero-lateral angles, its dorsal surface 

 is not so hairy, and its sculpture though similar is not so deeply cut : 

 the front is not so sinuous. 



(2) the lateral borders of the carapace are slightly divergent poster- 

 iorly, and there are two teeth — the posterior of which is, however, 

 extremely small — behind the outer orbital angle : 



(3) no subterminal spine on the upper border of the arm : no 

 transverse granular crest on the inner surface of the palm : 



(4) the milled crest along the upper border of the dactylus of the 

 chelee is lower and has only about 25 teeth : 



(5) the legs are longer, their meropodites are narrower and their 

 dactyli— except in the case of the 1st pair of legs — are barely half the 

 length of their propodites. 



In the Indian Museum there is a young male from the Andamans. 

 In this specimen the chelipeds are not massive and are very little longer 

 than the carapace. 



108. Sesarma latifemur i n. sp. 

 Closely related to 8. elongatum, A. M. Edw. 



This species belongs to the same natural group as S. tasniolatum, 

 from which it differs only in the following characters : — 



(1) the carapace is shallow and much depressed, and its length is 

 decidedly more than its breadth between the antero-lateral angles, its 

 dorsal surface is not quite so hairy and its post-frontal lobes are 

 deeper cut : 



(2) the lateral borders of the carapace are decidedly divergent 

 posteriorly and have no tooth behind the orbital angle : 



(3) the male chelipeds are little longer than the carapace : the 

 crest-like upper border of the arm does not end in a spine : the inner 



