Carcinological Fauna of India. 421 



lu the Indian Museum are 8 specimens from Ceylon, Madi-as, tlie 

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

 is 40 millim. long and 43 millim. broad. 



107. Sesarma Biockii, de Man. 



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

 and Archiv f. Natnrges. 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 S. 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 

 chelfB 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 harely 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, n. sp. 

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



This species belongs to the same natural group as 8. ixniolatum, 

 from which it differs only in the following characters : — 



(1) the carapace is s/iaZZoi« 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 



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