REPORT OF ASSISTANT SECRETARY. Gl 



Vol. XIII of the " Proceedings'" was put in type <luriiig- the fiscal year, 

 but was not issued until after June 30. It includes 52 papers, compris- 

 ing separates 790 to 841. The titles of the separate papers, ^vith the 

 names of the authors, are here giveii : 



No. 790. Desciii)tioii of a new species of land shell fiom Cuba — rertigo Cubuua. \\y 



William H. Dall. Pp. 1-2. 

 No. 7i'l. r)eseri])tioii of a new species of tish from Tippecauoe River, ludiana. jiy 



David St.iir .fordau aud liartou Warren I'hermann. Pp. 3, 4. 

 No. Id'l. Remarks on some fossil remains considered as peculiar kinds of marine plants. 



By Leo Lesiiuereux. Pp. 5-12. 

 No.Tl'o. On certaiu Mesozoic fossils from the islands of St. Paul and St. Peter, in 



the Straits of Ma<>ellau. By Charles A. White. Pp. 13, 14. 

 No. 7i;t4. Notes on the leaves of Liriodendron. By Theodore Holm. Pp. 15-35. 

 No. 795. New fishes collected off the coast of Alaska and the adjacent regions south- 

 ward. By Tarletou H. Bean. l*p. 37-45. 

 No. 79G. Preliminary report on the tishes collected by the steamer J /t«/ry.s,s on the 



Pacilic coast of North America during the year 1889, with description of 



twelve new genera aud ninety-two new species. By Charles H. Gilbert. 



Pp. 49-126. 

 No. 797. Further notes on the genus Xiphocolaptes of Lesson. By Robert Ridgway. 



Pp. 47, 4S. 

 No. 798. Catalogue of skeletous of birds collected at the Abrolhos Islands, Brazil, the 



Straits of Magellan, and the Galapagos Islands, in 1887-'88. By P^'rederic A. 



Lucas. Pp. 127-130. 

 No. 799. Birds from the coasts of Western North America and adjacent islands, c(d- 



lected in 1888-''89, with descriptions of new species. By Charles H. Townsimd. 



Pp. 131-142. 

 No. son. Rei)tiles from Clarion and Socorro islands and the Gulf of California, with 



description of a new species. By Charles H. Townsend. Pj). 143, 144. 

 No. SOI. Plttuts collected in 1889 at Socorro aud Clarion islands, Pacihc Ocean. By 



Dr. George Vasey aud J. N. Rose. Pp. 145-149. 

 No. 802. On a new genus and species of Colubrine snak(i from North America. By 



Leouhard Stejueger. Pp. 151-155. 

 No. 803. The osteological characteristics of the family Auguillicbe. By Theodore 



(iill. Pp. 157-1(jO. 

 No. 804. Tlic osteological characteristics of the family Synapholjranchida'. By 



Theodore Gill. Pj.. IGl-KM. 

 No. Sl)5. Till' osteological characteristics of the family ^luraenidie. By Theodore 



(Jill. Pp. 165-170. 

 No. 806. On the disappearance of the Dick Cissel (iS;/^(r« ./wr/7'r«/((() from the District 



of ("(duiubia. By Hugh M. Smith. Pp. 171, 172. 

 No. S07. Description of a new species of bat, Aialaplm svmola. By Harrison Allen. 



Pp. 173-175. 

 No. 808. On the snakes of the genus Chariuji. By Leouhard Stejueger. Pp. 177- 



182. 

 No. 809. On the North American lizards of the genus Barissiaof (Jray. By Leoidiard 



Stejueger. Pp. 183-185. 

 No. S10. A collection of stone implenuMits from the District of Columbia. By S. \. 



Proudlit. Pp. 187-194. 

 No. 811. Notes on the occurrence of a young crab-eater {Elacuie Canada) from the 



Lower Hudson Valley, New York. By Dr. A. K. P^isher. Pp. 195, 196. 

 No. 812. Observations on the life history of the Bottleuosc Porpoise. By Frederick 



W. True. Pp. 197-203. 



