Number 88 June 24, 1920 



OCCASIONAL PAPERS OF THE MUSEUM OF 

 ZOOLOGY 



UNIVERSITY OF MICHIGAN 



Ajsin Arbor, Michigan Published by the University 



NOTES ON THE ATHERINE FISHES OF COLOMBIA 

 By Carl L. Hubbs 



Dr. Carl H. Eigenmann has kindly submitted to the writer 

 several series of atherine fishes from Colombia. Two of the 

 species represented in this collection are marine, well-known as 

 tropical Atlantic forms, but never before recorded from the 

 Pacific; in fact, neither of the two genera nor the subfamily 

 (Atherininae) which they represent' have been noted heretofore in 

 the eastern Pacific. The third form, Thyrina colombiensis, a new 

 species, inhabits the basins of the Rio San Juan and the Rio Patia. 

 No other atherine fish is known to occur in Colombia, but Thyrina 

 pachylepis has been recorded from both Panama and Ecuador. 



Hepsctia stipes (Miiller and Troschel).^ — An adult and several 

 young specimens (Cat. No. 15306, Indiana University) of this 

 species were collected by Arthur Henn and Charles Wilson at 

 Tiunaco, a port in southern Colombia. Comparison with Atlantic 

 material discloses no constant differences. 



' Cf. Jordan and Hubbs, A Monographic Review of the Family of Alhcrinidae 

 or Silvcrsides (Stanford Univ. Publ., 1919), pp. 29, 31, 35. 

 ^ Cf. Jordan and Hubbs, ibid., p. 34. 



