78 



CEYLON PEAKL OYSTER REPORT. 



Periclimenes, Costa, 1844. 



Periclimenes vitiensis, Borradaile. 



Periclimenes vitientis, Borradaide, ' Ann. Mag. Nat. Hist.' (7) ii., p. 383, 1898. 

 Localities: Cheval Paar (Station XL VIII. ), 1 specimen ; south-east of Modragam 

 (Station LXIV), 1 specimen " on weed bearing oyster spat," length 18 millims. 

 General distribution : Pacific, Ceylon. 



Family : PALiEMONID^E. 

 Bithynis, Philippi, 18G0. 



Bithynis savignyi (Sp. Bate). 



Brachycarpus savignyi, Sp. Bate, ' " Challenger" Macrura,' p. 798, 1888. 

 Bithynis savignyi, Rathbun, ' Bull. U.S. Fish Comm.,' vol. 2, p. 124, 1900. 



Locality: Muttuvaratu Paar (Station VI.), 1 specimen, 12 millims. 



7 

 Rostrum reaching to the end of the antennular peduncle and having a formula ~. 



The antennular peduncle has the 1st joint broad and much flattened and equal in 

 length to the sum of the 2nd and 3rd joints, which are cylindrical. The fiagella are 

 slightly longer than the peduncle. The scale of the antenna is as long as the 

 rostrum. Thoracic legs are mostly missing, but the specimen agrees closely with 

 Bate's description. 



Up to the present this species appears to have only been recorded from the 

 Atlantic. 



General distribution : Bermudas, West Indies, Ceylon. 



Urocaris, Stimpson, 1860. 



Urocaris longicaudata, Stimpson Plate I., fig. 5. 



Urocaris longicaudata, Stimpson, ' Proc. Ac. Nat. Sci. Phil.,' XII., p. 39, 1860. 

 Urocaris longicaudata, Rathbun, ' Bull. U.S. Fish Com.,' vol. 2, p. 126, 1900. 



Locality : Aripu Paar (Station LXIV.), 1 specimen. Female bearing eggs. 

 Dimensions : 



Total length from tip of rostrum to end of telson . . 

 Length of carapace and rostrum along mid-dorsal line . 



,, along mid-dorsal line 



1st abdominal segment along mid-dorsal line 



2nd 



3rd 



4th 



5th 



6th 

 ,, telson 



