60 BULLETIN 51, UNITED STATES NATIONAL MUSEUM. 



P. 500. Identification of the species of Cyprinidfe and Catostomidse, 

 described by Dr. Charles Girard, in the "Proceedings of the 

 Academy of Natural Sciences of Philadelphia" for 1856. 

 By David S. Jordan. 



pp. 118-127. 



P. 501. On the development of viviparous osseous fishes. By John A. 

 Ryder. 



pp. 128-1B6, 6 pis. 



P. 502. On certain features of the development of the salmon. By 

 John A. Ryder. 



pp. 156-162, 1 plate. 



P. 503. OntheMheostomavariatutnoi K.irt\a,nd. By David S. Jordan. 



pp. 163-165. 



P. 504. On the occurrence of Iladropterus aurcmtiacus Cope,, in the 

 French Broad River, North Carolina. By Tarleton H. Bean. 



pp. 165-166. 



P. 505. On the identity of Cottus inaculatus Fischer, with Cottus 

 huhalin Euphrasen. By Tarleton H. Bean. 



pp. 166-167. 



P. 506. Description of a new crustacean allied to Tlomanis and Neph- 

 rons. By Sidney I. Smith. 



pp. 167-170. 



P. 507. On some genera and species of Penseidse, mostly from recent 

 dredgings of the United States Fish Commission. By Sid- 

 nej^ I. Smith. 



pp. 170-190. 



P. 508. On Stathmonotus, a new genus of fishes related to Mursenoides, 

 from Florida. By Tarleton H. Bean. 



pp. 191-192, 1 plate. 



P. 509. Note on Stoasodon narinari Euphrasen. By Tarleton H. 

 Bean. 



pp. 192-193. 



P. 510. On the American fishes in the Linnsean collection. By G. 

 Brown Goode and Tarleton H. Bean. 



pp. 193-^208. 



P. 511. Note on Epinephelus nigritus. By David S. Jordan. 



pp. 208-209. 



P. 512. Description of a new species of Amily stoma {Amblystoma 

 c(ij)eianum), from Indiana. By O. P. Hay. 



pp. 209-213, 1 plate. 



p. 513. List of plants collected by Mr. Charles L. McKay at Nusha- 

 gak, Alaska, in 1881, for the United States National Museum. 

 By Frank H. Knowlton. 



pp. 213-221. 



P. 514. The generic name of the Pastinacas, or "sting-rays." By 

 S. Garman. 



pp. 221-224. 



