1 

 1899.] A. Alcock — Garcinological Fauna of India, 35 



Front cut into four teeth — not counting the inner angles of the 

 orbit — of which the middle two are small and little prominent, or 

 obsolescent, or even confluent and obsolete : between and far beyond 

 them projects the spine-like process of the epistome. Supra-orbital 

 borders cut by two fissures into three lobes, the outer angle of the 

 middle lobe being usually dentiform, 



Antero-lateral and posterior borders and external maxillipeda 

 almost as in the preceding species. 



Chelipeds in the adult male more than 3 times, in the female and 

 young male not quite 2| times the length of the carapace — the hand the 

 most massive segment. Arm with 3 large spines on the anterior 

 (inner) border and with 1 at the far end of the posterior border. 

 Wrist and hand much as in the preceding species, but the costae are, for 

 the most part, granular, and the hand carries 3 spines two of which 

 stand side by side behind the finger-joint. 

 Legs as in N. sanguinolentus. 



Colours in spirit yellowish, the carapace chelipeds and proximal 

 joints of the last pair of legs having the dorsal surface copiously and 

 coarsely reticulated with bluish and purplish green. 

 A large species. 



In the Indian Museum are 46 specimens from all parts of the coasts 

 of the Indian Seas, from Penang to the Persian Gulf, besides 13 from 

 Japan, Hongkong, Australia and Suez. 



13. Neptunus {Amphitrite) gladiator (Fabr.). 



Portunus gladiator, Fabricius, Ent. Sysfc. Sappl. p. 368 : Bosc, Hist. Nat. Crnst. 

 I. p. 219 : Latreille, Hist. Nat. Crust. VI. p. 19, aud Encycl. Meth. X. p. 189. 



Cancer menestho, Herbst, Krabben, III. iii. 34, pi. Iv. fig. 3. 



Lupea gladiator, Milne Edwards, Hist. Nat. Crust. I. 456. 



Amphitrite gladiator, De Haan, Faun. Jap. Crust, p. 39, pi. i. fig. 5 : Haswell, 

 Cat. Austral. Crust, p. 84. 



Neptunus gladiator, A. Milne Edwards, Arcbiv. da Mus. X. 1861, pp. 330, 339 : 

 Richters in Mobius Meeresf. Maurit. p. 152 : Muller Verb. Nat. Ges. Basel, VIII. 

 1886, p. 475 : Miers, Challenger Bracbyura, p. 177 : de Man, Journ. Linn. Soc, 

 Zool., XXII. 1888, p. 69: J. R. Henderson, Trans. Linn. Soc, Zool., (2) V. 1893, p. 

 367: Ortmann, Zool. Jabrb. Syst, VII. 1893-94, p. 73. 



Amphitrite Haanii, Stimpson, Proc. Ac. Nat. Sci. Philad. 1858, p. 38. 



? Amphitrite media, Stimpson, Proc. Ac. Nat. Sci. Philad. 1858, p. 39 (v. A. 

 Milne Edwards, Archiv. du Mus. X. 1861, pp. 331, 339 and Ortmann, Zool. Jahrb. 

 Syst. VII. 1893-94, p 73). 



Carapace depressed, finely subtomentose, its length about two- 

 thirds its breadth without the great lateral spines, its surface broken by 

 low symmetrically disposed sub-regional elevations the summits aloce 

 of which are granular. 



