48 BULLETIN 19:5, UNITED STATES NATIONAL MUSEUM 



Proc. 

 No. 



192. Description of Sebastichthys myst'inus. By David S. Jordan and Charles H- 



Gilbert. Pp. 70-72. May 10, 1881. 



193. Description of a new species of Ptychochilus (Ptychochilus harfordi), from 



Sacramento River. By David S. Jordan and Charles H. Gilbert. Pp. 72-73. 

 May 10, 1881. 



194. Notes on Rata inornata. By David S. Jordan and Charles H. Gilbert. Pp. 73- 



74. May 10, 1881. 



195. On the fish-mortality in the Gulf of Mexico. By Ernest Ingersoll. Pp. 74-80. 



May 10, 1881. 



196. Notes on Salmonidae of the upper Columbia. By Charles Bendire. 



Pp. 81-87, 1 fig. July 18, 1881. 



197. A revievr of the genera and species of the family Centrarchidae, with a 



description of one new species. By Charles L. McKay. Pp. 87-93. July 18, 1881. 



198. A review of the genus Centurus, Swainson. By Robert Ridgway. Pp. 93-119. 



July 18, 1881. 



199. Observations on Sircdon lichenoides. By Wm. E. Carlin. Pp. 120-3 21. July 



18, 1881. 



200. On the destruction of fish by poisonous water in the Gulf of Mexico. By 



Joseph Y. Porter. Pp. 121-123. July 18, 1881. 



201. An analysis of water destructive to fish in the Gulf of Mexico. By F. M. 



Endlich. P. 124. July 18, 1881. 



202. Fish mortality in the Gulf of Mexico. By M. A. Moore. Pp. 125-126. July 18, 



1881. 



203. On the destruction of fish by polluted waters in the Gulf of Mexico. By W. C. 



W. Glazier. Pp. 126-127. July 18, 1881. 



204. Notes on some fishes from Hudson's Bay. By Tarleton H. Bean. Pp. 127-129. 



July 18, 1881. 



205. On the mineralogical composition of the normal Mesozoic diabase upon the 



Atlantic border. By George W. Hawes. Pp. 129-134. July 18, 1881. 



206. On the determination of feldspar in thin sections of rocks. By George W. 



Hawes. Pp. 134-136. July 18, 1881. 



207. On certain Cretaceous fossils from Arkansas and Colorado. By C. A. White. 



Pp. 136-139, 1 pi. July 18, 1881. 



208. Description of a new species of Gobicsox (Gobiesox rhessodon) from San 



Diego, California. By Rosa Smith. Pp. 140-141. July 18, 1881. 



209. Description of a new genus and species of Cittidae. By W. N. Lockington. 



Pp. 141-144. July 18, 1881. 



210. Descriptions of new fishes from Alaska and Siberia. By Tarleton H. Bean. 



Pp. 144-159. July 18, 1831. 



211. Description of a new species of fish, Apogon pandionis, from the deep water 



off the mouth of Chesapeake Bay. By G. Brown Goode and Tarleton H. 

 Bean. P. 160, July 18, 1881; p. 161, Aug. 20, 1881. 



212. Metallic castings of delicate natural objects. [Translated.] P. 161. Aug. 20, 



1881. 



213. The occurrence of the Canada porcupine in Maryland. By Otto Lugger. Pp. 



161-162. Aug. 20, 1881. 



214. Note on the latiloid genera. By Theodore Gill. Pp. 162-164. Aug. 20, 1881. 



215. List of species of Middle and South American birds not contained in the 



United States National Museum. By Robert Ridgway. Pp. 165-192, Aug. 

 20, 1881; pp. 193-203, Nov. 25, 1881. 



216. Description of a new sub-species of Loxigilla from the Island of St. Chris- 



topher, West Indies. By George N. Lawrence. Pp. 204-205. Nov. 25, 1881. 



217. Notes on the mortality among fishes of the Gulf of Mexico. By S. H. Johnson. 



P. 205. Nov. 25, 1881. 



218. The comparative action of dry heat and sulphurous acid upon putrefactive 



bacteria. [Based on experiments by Dr. Wermch,] P. 206, Nov. 25, 1881. 



219. List of special desiderata among North American birds. By Robert Ridgway. 



Pp. 207-208, Nov. 25, 1881; pp. 209-223, Dec. 8, 1881. 



