362 MR. .T. E. HENDERSON — A CONTRIBUTION 



Genus Leptodiits, A. Milne-Edwards. 



69. Leptodius exarattts (Milne-Edw.). 



L. exaratus (Milne-Edw.), A. Milne-Edwards, Nouv. Arch. Mus. Hist. Nat. t. ix. p. 222 (1873) ; Koss- 

 mann, Malacostraca in Zool. Ergebn. Reise Rotlien Meeres, p. 32, taf. ii. (1877). 



Tuticorin, many specimens ; Silavaturai Par {Thurstou) ; Ceylon {Ilaly, Nevill) ; 

 Sind, several specimens {Dau) ; very common on the reef at Rameswaram [J. R. R.). 



A very common and very variable species. A male from Silavaturai has the carapace 

 flatter and less distinctly areolated than usual ; the colour in spirit light grey, with a 

 large brownish spot on the gastric area of the carapace, and the distal joints of the 

 ambulatory legs darkly banded. Similar specimens from West Australia are in the 

 British Museum collection, and this variety is figured by Kossmann. An old male from 

 Sind (22*5 mm. long and 35 mm. broad) has the postero-lateral surface of the carapace 

 excavated on each side for the last pair of legs, while its front and chelipedes are 

 twisted and deformed. 



Distribution. From the Red Sea and E. Africa to Japan and the Pacific. 



Genus Etistjs, Milne-Edwards. 



70. Etisus l^vimanijs, Uandall. 



E. Imvimanus (Rand.), Dana, Crust. U.S. Explor. Exped. vol. i. p. 185, pi. x. fig. 1 (18.")2) ; A. Milne- 

 Edwards, Nouv. Arch. Mus. Hist. Nat. t. ix. p. 234 (1873). 



Rameswaram and Tuticorin, many specimens {Thurston); Ceylon (Half/); common 

 on the reef at Rameswaram (J. B. M.). 



BistribtUion. From the Red Sea and E. Africa to Japan, the Sandwich Is., and 

 Eijis. 



Genus Etisodes, Dana. 



71. Etisodes Electba (Herbst). 



E. Electra (Herbst), Miers, ' Alert' Crust, p. 217 (1884), ubi synon. 



{=E. frontalis, Dana, E. rugosa, Lucas, E. sculptilis, Heller, Chlorodius dentifrons, Stm., 



Chlorodius samoensis, Miers). 



Tuticorin {Thurston) ; Rameswaram, not uncommon {J. B. H.). 



Distribution. Red Sea, Seychelles, Malay Archipelago, N. Australia, Samoa, Sand- 

 wich Is. 



Genus Phymodius, A. Milne-Edwards. 



72. Phymodius ungulatus (Milne-Edw.). 



P. ungulatus (Milne-Edw.), A. Milne-Edwards, Nouv. Arch. Mus. Hist. Nat. t. ix. p. 218 (1873), 



{ = C/ilorodius areolatus, Adams & White). 

 Ceylon {Haly). 

 Distribution. From India to New Caledonia and the Pacific. 



