ZOOLOGICAL SOCIETY BULLETIN 



TANK USED FOR PHOTOGRAPHING 

 SMALL SPECIMENS. 



Photographs by W. L. Beasley. 



SEA-HORSES. 



results than those already secured by Mr. San- 

 born. 



Mr. E. F. Keller has made a number of very 

 satisfactory photographs of living fishes, which have 

 been pubhshed in previous numbers of the Bulletin. 



THE RUDD OR "PEARL ROACH." 



Dr. Tarleton H. Bean has reexamined specimens 

 of the so-called pearl roach in the Aquarium, and 

 has found that it does 

 not belong to the Ameri- 

 can species of the genus 

 Abramis as mentioned 

 by him in the Bulletin of 

 the American Museum 

 of Natural History in 

 1897, and in his cata- 

 logue of the Fishes of 

 Nevk' York, pubhshed in 

 Albany in 1903, under 

 the name Abrainis cry- 

 solcucas roseits. 



It has a keel on the 

 abdomen, behind the ventrals, but saddle-shaped 

 scales pass over it. The teeth are hooked, crenate, 



HORNED-MULLET. 

 Photograph by L. B. Spencer. 



five in the principal row and three in the inner 

 row. 



The pearl roach is one of the most attractive 

 fresh-water fishes in the Aquarium. It reaches a 

 larger size than the golden shiner, and hasbrilhant 

 vermilion fins. It is found only in lakes in Central 

 Park, New York City, where it is abundant. 



This is evidently a species introduced from 

 Europe; it agrees very well with Giinther's descrip- 

 tion and Couch's figure of the rudd {Leiiciscus 

 erythrophthalmns). The 

 pearl roach in the Aqua- 

 rium was originally 

 called Irish roach be- 

 cause it was said to 

 have come from Ireland. 

 Couch states that the 

 rudd has usurped the 

 name of roach in many 

 parts of Ireland. The 

 identification with the 

 European rudd if veri- 

 fied by comparison with 

 specimens of undoubted 

 European origin will dispose of one of the most 

 interesting puzzles among our fishes. 



