TO INDIAN CAECINOLOGY. 389 



Genus Macrophthalmus, Latr. 



146. Macrophthalmus depressus, Riippell. 



M. (li'pressiw, Riippell, Besclircib. u. Abbild. Kurzschwatizigen Krabhcn, p. 19. tab. iv. fig. (5 (18.30) ; 

 De Man, Notes Leyden Mus. vol. iii. p. 2;J5 (18S1) ; id. Broclv's Crust, p. 3,jG, tal'. xv. fig. 3 (1888). 

 M. (iffinls, Guei-in, Crust. 'Favorite/ p. \72, pi. 1. fig. 2 (1839). 



Rameswaram, three specimens {J. R. IT.). 



The carapace is finely granulated, with the exception of the central part of the gastric 

 area, and in young specimens it is only granulated towards the sides. The carpus and 

 liand are smooth and glabrous externally, without spines and with merely a row of 

 granules on the upper margin of the hand internally ; the mobile finger has an obtuse 

 crenulatcd lobe on its inner margin near the base. The ambulatory legs are pubescent, 

 with a single tooth near the anterior distal end of the merus. 



I have little doubt that my specimens are referable to Guerin's species, and at the 

 same time they seem to be identical with 31. depressus, as characterized by De Man, 

 though in the figure of the latter writer the palm is shorter in proportion to the length 

 of the fingers than in the Uamcswaram examples. This difference is, however, un- 

 important. A male specimen is 11 mm. long and 17 mm. wide. 



Bistnhution. Red Sea {Biippell, Be Ilan) ; Boml)ay, Pondicherry {Gncriit) ; North 

 Australia {II((swell). 



147. Macrophthalmus pectinipes, Guerin. 



M. iiectmipi's, Gue'rin, Crust. ' Favorite,' p. 1G7, pi. xlix. (1839) ; Milue-Edwards, Ann. Sei. Nat. 

 ser. 3, Zool. t. xviii. p. 158 (1852). 



Sind, five specimens {Baij). 



Tliis large species is characterized by its spiny-bordered ambulatory legs, and the 

 presence of large scattered tubercular granules on the carapace. 



The largest individual is 34 mm. long, and 57 mm. wdde at the level of tlie external 



orbital angles. 



mstrihutioH. Bombay {Giu'riii, BrU. IIiis.); Penang {Brit. Mas.). 



148. Macrophthalmus Latreillei (Dcsm.). 



M. Latreillei (Desm.), A. Milue-Edwards, Nouv. Arcli. Mus. Hist. Nat. t. ix. p. 278, ])1. xiii. fig. 3 

 (1873). 



Ceylon, in a fossil state ; two specimens {Bali/). 



Tliis species has been previously recorded in a fossil state from the recent deposits of 

 Ceylon, the Philippines, :Malacca, and New Caledonia, but it has not yet been found 

 living in the Indian seas. One of Mr. Haly's examples was in an excellent state of 

 preservation, and there could be no doubt as to its identity with the species figured by 

 A. Milne-Edwards. According to De Man 31. Polleni, Hoffmann, from Madagascar, is 

 perhaps synonymous with the present species. 



Bistribution. Living in the seas of New Caledonia {A. 3Blne-Edicarcls). 



second series. — ZOOLOGY, VOL. V. 56 



