298 Notes on the 



Montezuma, K. Y., has kindly furnished some valuable notes 

 which are included in the paper. 



The classification is that adopted by Dr. Jordan. 



Family I. PETROIWYZONTIDJE. 

 1. AMMOCffiTKS BRANCHIAIilS L.liiii8eu8. 



Ammocoetes niger * A., 349. B., 9. 

 Ammoccetes cepypterus. C, 4. 



This species, no doubt, inhabits most of the streams and lakes 

 in the North Eastern United States, although only known at 

 present from Indiana, Wisconsin and Ithaca, N". Y. 



On May 8th, 1886, Professor Gage ^ and myself caught five 

 specimens in Cayuga Lake Inlet. We saw as many more, but 

 were unable to capture them. On May 22d we visited the Inlet 

 a second time, but failed to find other examples of this species. 



The five specimens were compared by us with other specimens 

 from Indiana. In those from the Inlet, the extreme mandibu- 

 lary cusps on- eitLer sidB were much longer than the four re- 

 maining cusps; all the cusps were pointed. In the specimens 

 from Indiana the cusps were all bluntish and subequal in 

 ength ; no other differences could be detected. We consider 

 this difference too small to be of specific value. 



The five specimens from the Inlet were all males, and each 

 was busily engaged in building his nest. 



The habits of this species seem to be similar to those of the 

 next species ; they ascend the Inlet to spawn about two weeks 

 earlier, and. in smaller numbers. 



* The references are as follows : — 



A. Jordan's Manual of Vertebrates, 4th Edition. 



B. Jordan and Gilbert, Synopsis Fishes N. A., 1882. 



C. Jordan, Catalogue Fishes N. A., 1885. 

 Figures refer to pages in the above-named works. 



'* * " Indicates that the adult of the species is a food-fish. 

 ** f " Indicates that the adult of the species is used as food by some 

 of the larger fishes. 



^ Proc. Amer. Assoc. Adv.48ci., Buffalo meeting, page 269. 



