\u3ci\u3eArhythmorhynchus capellae\u3c/i\u3e sp. n. (Polymorphidae: Acanthocephala), A Parasite of the Common Snipe \u3ci\u3eCapella gallinago delicata\u3c/i\u3e

Arhythmorhynchus capellae sp. n. is described. The description is based on seven males and seven females from the Common Snipe in northern Colorado. The species is contrasted with two similar species, A. comptus Van Cleave and Rausch, 1950 and A. eroliae (Yamaguti, 1939) Van Cleave and Rausch, 1950. It differs from the former in having 14 proboscis hooks per row rather than eight or nine, and from the latter in having no bursal rays and 16 rows of 14 hooks rather than 18 rows of 12 to 13 hooks