172 Records of the Indian Museum. [Vol. XXIV, 



E'. Antennular peduncle not reaching' end of 

 antehnal scale, its last two segments of 

 normal proportions ; at least one ventral 

 tooth on rostrum. 



F. Rostrum with at least 9 dorsal teeth ; 

 carpus of second leg unarmed. 

 G. Carpus and merus ot second leg 

 equal in length and longer than palm ; 

 propodus of third leg little more than 

 twice as long as dactylus ; R. 11 : 2 ... digitalis, sp. nov. 

 G' . Carpus of second leg very much 

 shorter than either merus or palm ;- 

 propodus of third leg fully 4 limes as 

 long as dactylus ; R. 9-10 : 1 ... brocki (de Man). 



F'. Rostrum with only 6 dorsal teeth ; car- 

 pus of second leg with distal spine [car- 

 pus and palm of second leg subequal] ; 

 R. 6 : 2 .. ... ... rotumamts Borr. 



C. Hepatic spine absent ; R. 3-4 : 1 .. gerlacliei Nobili.l 



Periclimenes ( Ancylocaris) nilandcnsis Borradaile. 



1915. Periclimenes (Falciger) nilandensis, Borradaile, Ann. Mag. Nat' 



Hist. (8) XV, p. 211. 

 1 91 7. Periclimenes (Falciger) nilandensis, Borradaile, Trans. Linn. 



Soc. (2) Zool. XVII, p. 372, pi. liv, fig. 13. 



S. Nilandu Atoll, Maldives. 



Periclimenes (Ancylocaris) edwardsi Paulson. 



1875. Anchistia edwardsi, Paulson, Crust. Red Sea, p. 114, pi. xvii, 



fig. 2. 

 1906. Anchistia edwardsi ,*Nobili, Ann. Sci. nut., Zool. (9) IV, p. 53. 



Red Sea. 

 •Periclimenes (Ancylocaris) ceratophthalmus Borradaile. 



1915. Periclimenes (Comiger) ceratophthalmus, Borradaile, Ann. 



Mag. Nat. Hist. (8) XV, p. 211. 

 1917. Periclimenes (Comiger) ceratophthalmus, Borradaile, Trans. 



Linn. Soc. (2) Zool. XVII, p. 365, pi. liv, figs. Qa, b. 



Male Atoll, Maldives, on crinoid. 



Periclimenes (Ancylocaris) cornutus Borradaile. 



1915. Periclimenes (Comiger) cornutus, Borradaile. Ann. Mag. Nat. 



Hist. (8) XV, p. 211. 

 1917. Periclimenes (Comiger) cornutus, Borradaile. Trans. Linn. Soc. 



(2) Zool. XVII, p. 365, pi. liv, figs. 10a b. 



Male Atoll, Maldives, on red and brown crinoid. 

 Periclimenes (Ancylocaris) amboinensis (de Man). 



1887. Anchistia amboinensis, de Man, Arch. Natur^isch. LI 1 1, i, p. 

 546, pi. xxiia, figs. 2, 2a,b. 



1 This species belongs to the genus Harpilius, but is included here as it is 

 very likely to be confused with members of the subgenus Ancylocaris. 



