376 PERCY SLADEN TRUST EXPEDITION 



27. Periclimenes (Falciger) kolumadulensis Borradaile, 1915 (Plate 55, fig. 17). 



Ann. Mag. Nat. Hist. (8), xv. p. 213. 



Definition: Closely related to P. borradailei Rathbun, but differing in that (l) the 

 rostrum is 2^ times the length of the carapace behind it (not more than If times in 

 P. borradailei), (2) the second leg is seven times the length of the carapace (five times in 

 P. borradailei), (3) the last three legs are about -J- longer than in P. borradailei of the 

 same size, (4) the shape of the great chelae is very different, the fingers of that on 

 one side meeting and bearing a row of about a dozen small teeth, while those of the 

 other gape widely and bear each two basal teeth and a distal cutting flange. 



Length of the single specimen, 29 mm. 



Kolumadulu Atoll, Maldive Is. 



Subgenus Ensiger Borradaile, 1915. 



Ann. Mag. Nat. Hist. (8), xv. p. 207. 



Definition : Rostrum toothless, straight, of medium length. An absence of spines 

 from trunk and limbs. Second wrist of medium length. 



Type: Periclimenes (Ensiger) aurantiacus (Dorna), 1852. 



Anchistia aurantiaca, Dana, U. S. Explor. Exped. xiii. p. 581 (1852); Atlas, 

 PI. 28, fig. 2 (1855). 



Periclimenes aurantiacus, Borradaile, Ann. Mag. Nat. Hist. (7), ii. p. 382 (1898). 



Fiji, in coral. 



Doubtful and wrongly placed species attributed to Periclimenes. 



Periclimenes tenuipes (Leach). 



Nobili, Ann. Mus. Univ. Napoli, ii. xxi. p. 5 (1907), alludes to this species, which 

 he states to be of Mediterranean habitat. I have not been able to find the original 

 description of it. 



Periclimenes hertwigi Balss, 1914, and 



Periclimenes gorgonidarum Balss, 1914. 



Abb. k. Bayer. Ak. Wiss., Math.-Phys. Kl. ii. Suppl. Bd. x. p. 49 (1914). 



These species do not belong to Periclimenes, and indeed appear from statements 

 regarding their telsons not to be Pontoniinse. Further information regarding the mouth- 

 parts and gills of these very interesting forms is desirable. 



Periclimenes hermitensis, Rathbun, 1914. 



Proc. Zool. Soc. Lend., 1914, p. 655, PL 1, figs. 1—3. 



The correct position of this species is probably in the genus Ancyclocaris (see above, 

 p. 356). 



Periclimenes sp. de Man, 1902. 



Abb. Senckenb. Ges. xxv. iii. p. 833. 



It is not possible to assign this species to any genus until further information 

 concerning it be available. 



