Vol. 81, pp. 491-498 30 December 1968 PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON TAXONOMIC STATUS OF THE VESPERTILIONID GENUS ANAMYGDON (MAMMALIA; CHIROPTERA) By Cableton J. Phillips and Elmer C. Birney Museum of Natural History, The University of Kansas, Lawrence Miller (1907) named the vespertilionid subfamily Kerivou-linae and included in it the genera Kerivoula Gray and Phoniscus Miller. Chrysopteron Jentink was added to the subfamily (Jentink, 1910), but later was considered a subgenus of Myotis Kaup and therefore a vespertilionine by Tate ( 1941a, 1941b). Anamygdon, a monotypic genus known from a single specimen, was named as a kerivouline by Troughton (1929). Hill (1965) recently reviewed Kerivoula and Phoniscus but did not judge the taxonomic status of Anamygdon. Ryan ( 1965 ) , who also studied Kerivoula and Phoniscus, considered Anamygdon a distinct genus on the basis of descriptions by others. The subfamily KerivouHnae is distinguished from the Vespertilioninae primarily by means of sternal characteristics. In the KerivouHnae the length of the sternum is much less than twice the breadth of the presternum. Furthermore, "only four or five ribs articulate with the sternum" in kerivoulines (Miller, 1907: 232), whereas in vespertilionines the sternum is slender, "considerably more than twice [the] greatest width of [the] presternum," and "six ribs [are] connected with [the] sternum" (Miller, op. cit.: 197). In addition to the sternal features listed above, Kerivoula and Phoniscus are characterized by having three well-de-veloped upper premolars in line with the axis of the toothrow. Chrysopteron differs in having a reduced middle upper pre-molar that is located slightly internal to the toothrow, and lacks the sternal characteristics of kerivoulines. 49— Pboc. Biol. Soc. Wash., Vol. 81, 1968 (491)
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