472 Dr. L. S. Berg on the 



North New Hebrides, B.M. 13. 4. 6. 1. A paratype ( ? aJ.) 

 from same locality. Both specimens have been skinned from 

 alcohol^ but the colour of the fur is probably uninfluenced by 

 the preserving fluid. 



LV. — A Review of the Clapeoid Fishes of the Caspian Sea, 

 7vith Remarks on the Herring-like Fishes of the Russian 

 Empire. By Dr. L. S. Berg (St. Petersburg). 



The family Clupeidse is represented within the limits of the 

 Russian Empire by the following genera : — 



1. Clupeonella^ Kessler. 



ClupeoneUa, Kessler, Fishes of the Aralo-Caspio-Pontical Eegion, 1877, 



p. 187, tab. vi. fig. 24 (Riiss. ; type CI. grimmi, Kessler, juv.). 

 Alosa auctonim. 



Belly compressed ; ventral scutes strong, not concealed, 

 29 to 35 in number. Scales more or less deciduous, 49 to 

 60 in a longitudinal series ; two elongate scales (alas) at base 

 of caudal fin. Mouth large, terminal, the maxillary nearly 

 or quite reaching vertical from posterior edge of eye ; jaws 

 nearly equal anteriorly ; upper jaw distinctly notched. Teeth 

 on vomer persistent ; teeth usually present in jaws and on 

 palatines and tongue. Eyelids distinct; cheek higher than 

 long ; operculum with radial striae. Dorsal II-IV 12-16 ; 

 origin nearer to tip of snout than to base of caudal ; last 

 ray not produced. Anal II-IV 17-20. Pelvics I 8-9, 

 inserted below origin or anterior third of dorsal. Vertebrae 

 48 to 52. Pyloric appendages about 50. Ovaries yellow. 



Total length 160-500 mm. 



Black and Caspian Seas. Some ascending rivers. Acci- 

 dentally penetrating in the Mediterranean as far west as 

 Cette, France (1885) ^. 



2. Alosa, Cuvier, 1829. 



Type, Clupea alosa, L. 



Closely allied to ClupeoneUa, but vomer toothless. Ver- 

 lebrse 56-59. Appendices pyloricse 100. Transverse series 

 of scales 60-80. 



In Russia only A. finta, Cuv. (Baltic Sea, Gulf of Finland, 

 Gulf of Bothnia) . 



* Moreau, * Histoire naturelle des poissons de la France,' Supplement 

 (Paris, 1891), p. 75. 



