I9I3-] S. Kemp: Crustacea Stomatopoda of the Indo-P acific Region. 137 



posterior half of the telson which supports the intermediate spines and another, shorter 

 and far less conspicuous, which runs out on to the intermediate marginal denticle. 

 The six principal marginal teeth are well-developed ; the submedians are broad and 

 have small movable tips. In the large specimen examined there are only the most 

 obscure traces of minute submedian spinules. Normally there is one large intermediate 

 and one lateral denticle, which may bear one or two minute apical spinules. The 

 ventral surface of the telson is quite smooth. 



The ventral process of the uropods bears two blunt keels on its lower surface and 

 is cut distally into two spines, the inner of which is about two- thirds the length of the 

 Outer. The proximal segment of the exopod is provided with twelve movable spines 

 on its outer margin ; the distal segment extends beyond the apex of the last of these 

 spines and is only a little more than half the length of the proximal. 



In colour the preserved specimen is olivaceous green with obscure traces of marb- 

 ling. The carinae of the sixth somite and telson are quite pale, and the antennal scale 

 is pale with a large dark distal patch. According to Milne-Edwards' coloured figure 

 the marbling is conspicuous in fresh specimens and the raptorial dactylus, the spines 

 on the outer uropod, and all the fringes of setae are crimson. 



Odonto dactylus bleekeri, founded on a specimen from Batavia, is described by 

 A. Milne-Edwards as follows: "Cette espèce .... se distingue du Gonodactylus 

 scyllarus par la forme de la plaque rostrale, qui, bien qu'élargie à sa base, se termine 

 en pointe, et par l'existence d'une carène médiane lamelleuse que porte en dessus le 

 dernier segment de l' abdomen ; cette carène est notablement moins élevée que celle du 

 Gonodactyle cultrifer." A Milne-Edwards seems to have misunderstood the characters 

 of 0. scyllarus, for, in the features which he notes, his new species does not seem to 

 present any difference from that form. 



Of Odontodactylus scyllarus I have seen only a single example : — 

 ~ Mauritius. Purchased. 1 ? , 115 mm. 



This species appears to have a wide Indo-pacific distribution extending from 

 Samoa and Japan to Madagascar. It has been recorded from Samoa (Miers, Bigelow) ; 

 Rotuma (Borradaile) ; Kii, Japan (Rathbun) ; New Britain (Borradaile) ; New 

 Guinea and Goram I. (Miers) ; Amboina (Miers, de Man, Ortmann, Nobili) ; Celebes 

 (Rumph); Lette I., Timor (de Man) ; Batavia (A. Milne-Edwards); Trincomali (Müller) ; 

 Seychelles (Miers) ; Zanzibar (Miers) ; Madagascar (Miers, Richters) ; Réunion (Milne- 

 Edwards, Hoffman) ; Mauritius (Miers). 



2. Odontodactylus cultrifer (White). 



1850. Gonodactylus cultrifer, White, Proc. Zool. Soc, p. 96, pi. xvi, figs. 1, 2. 



1851. Gonodactylus cultrifer, White, Ann. Mag. Nat. Hist. (2), VII, p. 422. 

 1880. Gonodactylus cultrifer, Miers, Ann. Mag. Nat. Hist. (5), V, p. 117. 

 1894. Odontodactylus cultrifer, Bigelow, Proc. U.S. Nat. Mus., XVII, p. 496. 

 1901. Gonodactylus cultrifer, Lanchester, Proc. Zool. Soc, II, p. 555. 



Of this species I have seen no specimens. According to the accounts of White, 

 Miers and Lanchester and from the figures which the first of these authors has given, 

 it may be separated from 0. scyllarus by the following characters : — 



