PROCEEDINGS 79 



Proc. 

 Na 



940. Preliminary report on the molluscan species collected by the United State* 



scientific expedition to West Africa, in 1889-'90. By Robert E. C. Stearns. 

 Pp. 317-339. Sept. 28, 1893. 



941. On rare or little known mollusks from the west coast of North and South Amer- 



ica, with descriptions of new species. By Robert E. C. Stearns. Pp. 341-352, 



1 pi. Sept. 28, 1893. 



942. Scientific results of explorations by the U. S. Fish Commission steamer Alba- 



tross. No. XXV. — Report on thg mollusk-fauna of the Galapagos Islands 

 with descriptions of new species. By Robert E. C. Stearns. Pp. 353-450, 



2 pis. Sept. 29, 1893. 



943. Scientific results of explorations by the V. S. Fish Coramissinn steamer Alba- 



tross. No. XXVI. — Report on the pteropods and heteropods collected by the 

 U. S. Fish Commission steamer Albatross during the voyage from Norfolk, 

 Va., to San Francisco, Cal., 1887-'88. By James I. Peck. Pp. 451-466, 3 pis. 

 Sept. 30, 1893. 



944. Diagnosis of a new Californian lizard. By Leonhard Stejneger. P. 467. July 



21, 1893. 



945. Description of a supposed new species of Odontophorus from southern Mexico. 



By Robert Ridg\vay. Pp. 469-470. July 21, 1893. 



946. A subtropical Miocene fauna in Arctic Siberia. By William Healey DalL 



Pp. 471-478, 1 pi. Sept. 30, 1893. 



947. Notes on a collection of birds from eastern Nicaragua and the Rio Frio, 



Costa Rica, with a description of a supposed new Trogon. By Charles W. 

 Richmond. Pp. 479-532. Oct. 4, 1893. 



948. Description of a new species of fruit bat, Pteropus aldabrcnsis, from Aldabra 



Island. By Frederick W. True. Pp. 533-534. Oct. 21, 1893. (Advance sheeU 

 issued July 14, 1893.) 



949. Notice of the crustaceans collected by the United States scientific expedition 



to the west coast of Africa. By James E. Benedict. Pp. 535-541. Oct. 9, 1893. 



950. A descriptive catalogue of the harvest-spiders (Phalangiidae) of Ohio. By 



Clarence M. Weed. Pp. 543-563, 1 fig., 13 pis. Oct. 25, 1893. 



951. Scientific results of the U. S. eclipse expedition to West Africa, 1889-'90. Report 



upon the Insecta, Arachnida, and Myriopoda. By C. V. Riley. Pp. 565- 

 590, 13 figs., 1 pi. Oct. 23, 1893. 



952. On some fossil Unios and other fresh-water shells from the drift at Toronto, 



Canada; with a review of the distribution of the Unionidae of northeastern 

 North America. By Chas. T. Simpson. Pp. 591-595. Oct. 25, 1893. 



953. Descriptions of some new birds collected on the islands of Aldabra and 



Assumption, northwest of Madagascar, by Dr. W. L. Abbott. By Robert 

 Ridgway. Pp. 597-600. Oct. 25, 1893. (Advance sheets issued Aug. 16, 

 1893.) 



954. Notes on a small collection of mammals from the Tana River, East Africa, 



with descriptions of new species. By Frederick W. True. Pp. 601-603. 

 Oct. 25, 1893. 



955. Remarks on the avian genus Myiarchus, with special reference to At. yuca- 



tanensis Lawrence. By Robert Ridgway. Pp. 605-608. Oct. 25, 1893. 



956. On a small collection of birds from Costa Rica. By Robert Ridgway. Pp. 609- 



614. Oct. 28, 1893. 



957. Notes on a third installment of Japanese birds in the Science College Museum, 



Tokyo, Japan, with descriptions of new species. By Leonhard Stejneger. 

 Pp. 615-638. Oct. 30, 1893. 



951. Land shells of the genus Bulimulus in Lower California, with descriptions of 

 several new species. By William Healey Dall. Pp. 639-647, 2 pis. Nov. 

 23, 1893. 



959. Descriptions of new species of American fresh-water crabs. By Mary J. Rath- 

 bun. Pp. 649-661, 5 pis. Nov. 23, 1893. 



