TO IXDIAX CAECIXOLOGT. 389 



Genus Macrophthalmus, Latr. 



146. MACROPnTHALMUS DEPRESSUS, Ptuppcll. 



M. depressmi, Riippell, Besclireib. u. Abbild. Kurzsch^vauzigen Krabben, p. 19. tab. iv. fig. 6 (18.30) ; 

 De Man, Notes Leyden Mus. vol. iii. p. 255 (1881) ; irl. Brock's Crust, p. 356, taf. xv. fig. 3 (1888). 

 M. affinis, Guerin, Crust. 'Favorite,' p. 172, pi. 1. fig. 2 (1839). 



Rameswaram, three specimens (./. B. II.). 



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

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

 hand are smooth and glabrous externally, Avithout spines and with merely a row of 

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

 crenulated 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 HI. depressiis, as cliaracterizcd by De Man. 

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

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

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



Bistnhntion. Red Sea {Bilppell, Be Man); Bombay, Pondicherry [Gucnii) ; North 

 Australia {Haswell). 



147. Macrophthalmits pectinipes, Guerin. 



M. jjectinipes, Guerin, Crust. ' Favorite,' p. 107, pi. xlix. (1839) ; :\Iiliie-]%d\vards, Ann. Sci. Nat. 

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



Sind, five specimens {Day). 



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. wide at the level of the external 

 orbital angles. 



Bistrihution. Bombay {Guerin, Brit. Mus.); Penang {Brit. Mus.). 



148. M.VCROPHTHALMUS L.VTREILLEI (Desm.). 



M. Latreilln (Desm.), A. jNIilne-Edwards, Nouv. Areli. ]\Ius. Hist. Nat. t. ix. p. 278, ])1. xiii. fig. 3 

 (1873). 



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



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

 Ceylon, the Philippines, ]\[alacca, and New Caledonia, but it has not yet been found 

 living in the Indian seas. One of ^Ir. Ualy's examples was in an excellent state of 

 preservation, and there could be no doul)t as to its identity -vvith the species figui-ed by 

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

 perhaps synonymous with the present species. 



Bistrihution. Living in the seas of New Caledonia {A. Jlihie-Edtcards). 



SECOND SERIES. — ZOOLOGY, VOL. V. 50 



