PROCEEDINGS 146 



Proc 

 No. 



2487. Recently found meteoric irons from Mesa Verde Park, Colo., and Savannah, 



Tenn. By George P. Merrill. Art. 18, pp. 1-4, 3 pis. Mar. 4, 1924. 



2488. Descriptions of eighteen new species of fishes from the Wilkes Exploring 



Expedition, preserved in the United States National Museum. By Henry 

 W. Fowler and Barton A. Bean. Art. 19, pp. 1-27. Dec. 22, 1923. 



2489. On the taxonomy, biology, and distribution of the biting lice of the family 



Gyropidae. By H. E. Ewing. Art. 20, pp. 1-42, 18 figs., 1 pi. Mar. 4, 1924. 



2490. Notes and descriptions of two-winged flies of the family Dolichopodidae from 



Alaska. By M. C. Van Duzee. Art. 21, pp. 1-16, 1 pi. Jan. 4, 1924. 



Volume 64 



Proceedings of the United States National Museum, vol. 64. Pp. i-xiii (title page, 

 advertisement, table of contents, and list of illustrations) ; arts. 1-23 (Pro- 

 ceedings papers 2491-2513, paged separately). 1925. 



2491. Tertiary mollusks of the genus Orthaulax from the Republic of Haiti, Porto 



Rico, and Cuba. By Wendell P. Woodring. Art. 1, pp. 1-12, 2 pis. 

 Dec. 22, 1923. 



2492. The Sharps meteorite, Richmond County, Virginia. By Thomas L. Watson. 



Art. 2, pp. 1-4, 2 pis. Dec. 22, 1923. 



2493. A remarkable new sea star from Japan. By W. K. Fisher. Art. 3, pp. 1-6, 



6 figs., 2 pis. Mar. 18, 1924. 



2494. New genera and species of ichneumon-flies. By R. A. Cushman. Art. 4, pp. 



1-16, 2 figs. Jan. 12, 1924. 



2495. Fossil birds from southeastern Arizona. By Alexander Wetmore. Art. 5, 



pp. 1-18, 9 figs. Jan. 15, 1924. 



2496. Descriptions of new species and hitherto unknown castes of termites from 



America and Hawaii. By Thomas E. Snyder. Art 6, pp. 1-40, 5 pis. 

 May 10, 1924. 



2497. Studies of larvae of crabs of the family Pinnotheridae. By O. W. Hyman. 



Art. 7, pp. 1-9, 6 pis. Mar. 5, 1924. 



2498. A synopsis of the species of Boeckella and Pseudoboeckella with a key to 



the genera of the fresh-water Centropagidae. By C. Dwight Marsh. Art. 

 8, pp. 1-28, 35 figs. Mar. 19, 1924. 



2499. The heteronereis phase of a new species of a polychaetous annelid from 



Uruguay. By Aaron L. Treadwell. Art. 9, pp. 1-3, 1 pi. Dec. 22, 1923. 



2500. New species of two-winged flies from western North America belonging to 



the family Tipulidae. By Charles P. Alexander. Art. 10, pp. 1-16. 

 Mar. 11, 1924. 



2501. Revision of the two-winged flies of the family Clusiidae. By A. L. Me- 



lander and Naomi George Argo. Art. 11, pp. 1-54, 4 pis. May 16, 1924. 



2502. Notes and descriptions of naiads belonging to the dragonfly genus Helocor- 



dulia. By Clarence Hamilton Kennedy. Art. 12, pp. 1-4, 1 pi. Mar. 5, 1924. 



2503. Fossil insects in the United States National Museum. By T. D. A. Cockerell. 



Art. 13, pp. 1-15, 2 figs., 2 pis. Feb. 2, 1924. 



2504. New species and subspecies of spider crabs. By Mary J. Rathbun. Art. 15, 



pp. 1-5. Jan. 2, 1924. 



2505. A revision of the mutillid wasps of the genera Myrmilloides and Pseudo- 



methoca occurring in America north of Mexico. By Clarence E. Mickel. 

 Art. 15, pp. 1-52, 4 pis. June 17, 1924. 



2506. A collection of birds from north and north-central Celebes. By J. H. Riley. 



Art. 16, pp. 1-118. Oct. 28, 1924. 



2507. New North American parasitic copepods, new hosts, and notes on copepod 



nomenclature. By Charles Branch Wilson. Art. 17, pp. 1-22, 3 pis. 

 July 7, 1924. 



2508. Notes on certain catostomids of the Bonneville system of Utah, including the 



type of Pantosteus virescens Cope. By John Otterbein Snyder. Art. 18, 

 pp. 1-6. Mar. S, 1924. 



