Carcinological Fauna of India. 189 



The eye-stalks are of moderate length, salient, and almost immov- 

 able. 



The buccal orifice is large, and the external maxillipeds are orna- 

 mented with lines of fine sharp-cut granulation : their merus is as broad 

 as the ischium, and is excavated near the middle for the insertion of the 

 palp. The chelipeds, in the male, are somewhat longer than the cara- 

 pace and rostrum : their ischium, mei'us, and carpus are ornamented 

 with lines of fine sharp granulation : the palms are elongate and com- 

 pressed, with the edges carinate : the fingers, which are less than half 

 the length of the palm, are compressed and curved. 



The ambulatory legs, which decrease in length gradually, have 

 their bases and meropodites granular, and the dactyli very slender. 



The length of the carapace of the largest specimen — a male — is 

 9 millim., of an egg-laden female 6 millim. 



From off the Andamans at about 100 fathoms, and off Ceylon at 

 32 to 34 fathoms. 



Collodes, Stimpson. 



Collodes, Stimpson, Ann. Lye. Nat. Hist., New York, Vol. VII. 1862, p. 193. 

 Collodes, Miers, Journ. Linn. Soc., Zool., Vol. XIV. 1879, p. 645. 



<■ Carapace ovate-triangular. Rostrum short, bifid, with the lobes 

 approximate. Eyes of moderate length, retractile against a strong post- 

 ocular process which affords no concealment. Basal antennal joint 

 narrow, a little curved, anteriorly bidentate, one tooth placed behind the 

 other ; mobile part of the antenna? exposed. External maxillipeds with 

 the merus as broad as the ischium, completely covering the mouth. 

 Chelipeds of moderate size. Ambulatory legs short, prehensile, with 

 slender dactyli which in length are equal to their propodites, and are 

 retractile against the latter. Abdomen of the female consisting of five 

 segments. 



Collodes malabaricus, n. sp. Plate V. fig. 3. 



Carapace ovate-triangular, with the gastric and cardiac regions 

 distinct and elevated. Rostrum short, emarginate. Pre-ocular spine 

 large and coarse, post-ocular spine very prominent. A tubercle on the 

 cardiac region, and a large epibranchial spine on either side of it. 



Basal antennal joint narrow throughout, and bearing two spines 

 anteriorly — one at the antero-external angle, visible from above, and 

 comparable in size to one of the rostral teeth — and one behind this, 

 immediately iu front of the base of the eye-stalk. Eyes slender aud 

 35 



