152 AQSTNUAL REPORT SMITHSONIAN INSTITUTION, 1950 



VOLUME 99 



No. 3248. Additions to the echiuroid fauna of the North Pacific Ocean, by 

 Walter Kenrick Fisher. Pp. 479-497, pis. 28-34. Aug. 10, 1949. 



No. 3249. A remarkable new species of trypetid fly of the genus Ceratitis 

 (sensu stricto) from East Africa in the collection of the United States National 

 Museum, by H. K. Munro. Pp. 499-501, fig. 39. July 5, 1949. 



No. 3250. A new marine annelid from Florida, by Olga Hartman. Pp. SOS- 

 SOS, fig. 40. Aug. 4, 1949. 



No. 3251. A new species of apseudid crustacean of the genus Synapseudes 

 from northern California (Tanaidacea), by Robert J. Menzies. Pp. 509-515, 

 figs. 41-42. Aug. 4, 1949. 



No. 3252. Redescription of the shrimp Bathypalaemonella pandaloides (Rath- 

 bun), with remarks on the family Campylonotidae, by L. B. Holthuis. Pp. 517- 

 523, fig. 43. Aug. 25, 1949. 



No. 3253. The Nearctic species of Evaniidae (Hymenoptera) , by Henry 

 Townes. Pp. 525-539, fig. 44. Sept. 1, 1949. 



VOLUME 100 



No. 3254. On a collection of Mallophaga from Guam, Marianas Islands, 

 by M. A. Carriker, Jr. Pp. 1-24, figs. 1-5. Nov. 29, 1949. 



No. 3255. Observations on flatworms and nemerteans collected at Beaufort, 

 N. C, by A. S. Pearse. Pp. 25-38, figs. 6-9. Oct. 14, 1949. 



No. 3256. Some Alaskan syrphid flies, with descriptions of new species, by 

 C. L. Fluke. Pp. 39-54, figs. 10-11. Oct. 11, 1949. 



No. 3257. Two new gynandromorphs, with a list of previously recorded 

 sexual aberrations in the scolioid wasps, by Karl V. Krombein. Pp. 55-59, 

 pis. 1-2. Nov. 16, 1949. 



No. 3258. Fresh-water Ostracoda from Brazil, by Willis L. Tressler. Pp. 

 61-83, figs. 12-14. Jan. 8, 1950. 



No. 3259. The Nearctic species of Gasteruptiidae (Hymenoptera), by Henry 

 Townes. Pp. 85-145, figs. 15-16. Apr. 18, 1950. 



No. 3260. Pycnogonida of the United States Navy Antarctic Expedition, 

 1947-48, by Joel W. Hedgpeth. Pp. 147-160, figs. 17-19. Jan. 23, 1950. 



No. 3261. Copepods from Lake Erh Hai, China, by Sidney C. Hsiao. Pp. 

 161-200, figs. 20-30. Apr. 26, 1950. 



No. 3262. Mosquitoes of the genus Tripteroides in the Solomon Islands, by 

 John N. Belkin. Pp. 201-274, figs. 31-37. Mar. 30, 1950. 



No. 3263. A revision of the American clupeid fishes of the genus Harengula, 

 with descriptions of four new subspecies, by Luis Ren6 Rivas. Pp. 275-309, pis. 

 3-5, figs. 38-41. Mar. 28, 1950. 



No. 3264. Moths of the genus Cincia and three new and closely related genera, 

 by William D. Field. Pp. 311-326, pis. 6-9. Mar. 10, 1950. 



No. 3265. Mammals of northern Colombia. Preliminary report No. 6: 

 Rabbits (Leporidae), with notes on the classification and distribution of the 

 South American forms, by Philip Hershkovitz. Pp. 327-375, figs. 42-43. May 

 26, 1950. 



No. 3266. Some bird lice of the genera Acidoprodus and Quadraceps (Neo- 

 tropical Mallophaga Miscellany No. 3), by M. A. Carriker, Jr. Pp. 377-386, 

 figs. 44-45. Jan. 26, 1950. 



No. 3267. A review of the American clupeid fishes of the genus Dorosoma, by 

 Robert Rush Miller. Pp. 387-410. Mar, 7, 1950. 



