PROCEEDINGS 149 



Prec. 



No. 



2579. The origin, occurrence, composition, and physical properties of the mineral 



iddingsite. By Clarence S. Ross and Earl V. Shannon. Art, 7, pp. 1-19, 2 

 pis. May IS, 1925. 



2580. A revision of the parasitic wasps of the genus Mlcrobracon occurring in 



America north of Mexico. By C. F. W. Muesebeck. Art. 8, pp. 1-85, 2 pis. 

 May 25, 1925. 



2581. Unusual forms of fossil crinoids. By Frank Springer. Art. 9, pp. 1-137, 10 



figs., 26 pis. Feb. 15, 1926. 



2582. The Indian medical exhibit of the Division of Medicine in the United States 



National Museum. By Charles Whitebread. Art. 10, pp. 1-26, 20 figs., 

 2 pis. July 22, 1925. 



2583. A synoptic review of the beetles of the tribe Osoriini from the Western 



Hemisphere. By Howard Notman. Art. 11, pp. 1-26. Apr. 30, 1925. 



2584. A new species of polychaetous annelid from Uruguay, Aphrodita magna. 



By A. L. Treadwell. Art. 12, pp. 1-3, 2 figs. Apr. 11, 1925. 



2585. Revision of bugs of the family Cryptostemmatidae in the collection of the 



United States National Museum. By W. L. McAtee and J. R. Malloch. 

 Art. 13, pp. 1-42, 4 pis. Apr. 16, 1925. 



2586. A review of the beetle family Pseudomorphidae, and a suggestion for a 



rearrangement of the Adephaga, with descriptions of a new genus and 

 new species. By Howard Notman. Art. 14, pp. 1-34. May 25, 1925. 



2587. The dragon god (Dai-Ja) in Idzumo, Japan. A Japanese tale. By I. M. 



Casanowicz. Art. 15, pp. 1-4, 1 pi. May 23, 1925. 



2588. Eggs of a new species of nematoid worm from a shark. By G. A. MacCallum. 



Art. 16, pp. 1-2, 1 pi. May 9, 1925. 



2589. Two new larval nematodes belonging to the genus Porrocaecum from mam- 



mals of the order Insectivora. By Benjamin Schwartz. Art. 17, pp. 1-8, 

 1 pi. May 23, 1925. 



2590. 'Occurrence of the crinoid genus Apiocrinus in America. By Frank Springer. 



Art. 18, pp. 1-5, 1 pi. April 8, 1925. 



2591. The adaptive modifications and the taxonomic value of the tongue in birds. 



By Leon L. Gardner. Art. 19, pp. 1-49, 16 pis. Sept. 25, 1925. 



2592. A revision of the insects of the aphid genus Amphorophora. By Preston W. 



Mason. Art. 20, pp. 1-92, 18 pis. Sept. 23, 1925. 



2593. Studies on the cyclostomatous Bryozoa. By Ferdinand Canu and Ray S. Bassler. 



Art. 21, pp. 1-124, 46 figs., 31 pis. Mar. 29, 1926. 



2594. Three new land shells from Mexico. By Paul Bartsch. Art. 22, pp. 1-5, 



1 pi. Dec. 14, 1925. 



2595. Ten new North American ichneumon-flies. By R. A. Cushman. Art. 23, 



pp. 1-13. Feb. 2, 1926. 



2596. South American snakes in the collection of the United States National Mu- 



seum. By Afranio do Amaral. Art. 24, pp. 1-30. Dec. 23, 1925. 



2597. Foraminifera of the genera Siphogenerina and Pavonina. By Joseph A. 



Cushman. Art. 25, pp. 1-24, 6 pis. Mar. 9, 1926. 



2598. A new species of hookworm from a North American raccoon. By Benjamin 



Schwartz. Art. 26, pp. 1-4, 4 figs. Dec. 2, 1925. 



2599. Asymmetry in the skulls of mammals. By A. Brazier Howell. Art. 27, pp. 



1-18, 8 "pis. Dec. 31, 1925. 



2600. Supplementary observations on the skull of the fossil porpoise Zarhachis 



flagellator Cope. By Remington Kellogg. Art. 28, pp. 1-18, 5 pis. Feb. 

 24, 1926. 



2601. A list of the annelids collected by Captain R. A. Bartlett in Alaska, 1924, 



with a description of a new species. By A. L. Treadwell. Art. 29, pp. 

 1-3, 4 figs. Nov. 18, 1925. 



