1922. j S. Kemp : Noles on Crustacea Decapoda. 231 



(ix) The anterior of the two pairs of dorsal spines on the 

 telson is placed a little behind the middle. The posterior pair is 

 midway between the anterior pair and the apex. 



The largest specimen examined is about 16 mm. in length. 



Thanks to the excellence of Savigny's figures the identity of 

 this species is beyond all doubt Richters' Pontonia {Harpilius) 

 dentata, as de Man and Borradaile have suggested, is no doubt 

 synonymous. 



Borradaile regards Ortmann's A nchistia spinigera as a synonym 

 of H . depressus, but while it may be true that the specimens he 

 himself recorded under the former name in 1898 and 1899 belong to 

 Stimpson's species, it does not seem probable that this is also 

 true of those which Ortmann and Lenz have described. Both these 

 authors refer to the presence of three spines at the distal end of the 

 merus of the second Jeg and this character, so far as I am aware, 

 occurs only .in H. beaupresi. On the other hand Ortmann states 

 that the dactylus of the second leg bears two teeth and the fixed 

 finger three and this applies to H. depressus rather than to 

 H. beaupresi. Further information is necessary before the position 

 of Ortmann's species can be decided. 



The specimens of H. beaupresi in the Zoological Survey of 

 India are from the following localities : — 



724010. Aden. Brit. Mus. One. 



C 407/1- Tor, Gulf of Suez. R. B. S. Sewell, FJght. 



1916. 

 C 408/1. Port Blair, Andanians. J.Wood-Mason. Five. 



C 459 1. Port Blair, Andamans. S. Kemp, March, One. 



KJI5 



The specimen from Aden had been determined by Miers as 

 Anchislia petitthouarsi (Audouin). 



I have also seen specimens belonging to the Paris Museum 

 from Mahe in the Seychelles (Alluaud coll.) and from Massouah, 

 Red Sea (Raffray coll.). 



The species has been recorded from numerous localities in the 

 Red Sea (Audouin, Heller, Paulson, Nobili, Balss) from the Chagos 

 Archipelago and the Maldives (Borradaile) and from Pulo Edam 

 near Batavia (de Man). If Ortmann's Anchislia spinigera is syn- 

 onymous the species extends further east to Samoa (Ortmann) 

 and I,aysan (Lenz). 



Harpilius depressus Stimpson. 



i860. Harpilius depressns, Stimpson, Proc. Acad. Sci. Philadelphia, 



p. 38. 

 189S. Periclimenes spinigerrs, Borradaile, Ann. Mag. Nat. Hist. (7) 



'I, p- 38.V 

 1899. Periclimenes spinigerits, Borradaile, in \\ illey's Zool. Results 



P- 405- 

 1903. Harpilius depressus, Rathbun, Bull. U. S. Fish Comm. XXIII, 



iii, p. 920, text-fig. 68. 

 1915. Harpilius depressus, Balss, Denk. math.-naturw. Kl. K. Akad. 



Wien, XCI, p. 27. 

 1917. Harpiliopsis depressus, Borradaile, Trans. Linn. Sue. (2) Zool. 



XVII, p. 380, pi. Ivi, fig. 22. 



