LITERATURE CITED 
CrEASER, Epwin PHILLIP. 
1930. The North American phyllopods of the genus Sireptocephalus. Occ. 
Pap. Mus. Zool. Univ. Michigan, No. 217, 10 pp. 
PackarpD, ALPHEUS SPRING, Jr. 
1871. Preliminary notice of North American Phyllopoda. Amer. Journ. 
Sci. and Arts, ser. 3, vol. 2, pp. 108-113. 
1874. Synopsis of the fresh-water phyllopod Crustacea of North America. 
Ann. Rep. U. 8. Geol. Geogr. Surv. Terr. for 1873, pp. 613-622. 
1877. Descriptions of new phyllopod Crustacea from the West. U.S. Geol. 
Geogr. Surv. Terr. Bull. 3, pp. 171-185. 
1883. A monograph of the phyllopod Crustacea of North America, with 
remarks on the order Phyllocarida. Ann. Rep. U. 8. Geol. Geogr. 
Surv. Terr. for 1878, pt. 1, pp. 295-592. 
39 
1, S. GOVERNMENT PRINTING OFFICE: 1941 
