. Bulletin. Science; Natural history; Natural history. Figure 4. Oreohelix grahamensis, new species, three views. and somewhat wider just below the periphery. Height diameter umbilicus On uneroded specimens the spirals appear on the last half of the second whorl and the radial lines appear on the first whorl. On some specimens the peripheral cord is continuous though variable. Genitalia.—Internally ril (Fig. 3) is more than hall the lolal I bulbously expanded; epiphallua spindle half the length ol the pi ni In lain d specimens, the distal end of llic cpipli;ili protrude into t
. Bulletin. Science; Natural history; Natural history. Figure 4. Oreohelix grahamensis, new species, three views. and somewhat wider just below the periphery. Height diameter umbilicus On uneroded specimens the spirals appear on the last half of the second whorl and the radial lines appear on the first whorl. On some specimens the peripheral cord is continuous though variable. Genitalia.—Internally ril (Fig. 3) is more than hall the lolal I bulbously expanded; epiphallua spindle half the length ol the pi ni In lain d specimens, the distal end of llic cpipli;ili protrude into the upper end of ihc pi i giving the appearance ol a ihorl verge. On the opposite side ni ibis verge-like structure, the pp end of the penis bears a prominent cornuali jeetion. these characters of penis and cpiphallu constant in all five anatomies examined. Albumin gland rather small; "talon" well-developed, black. Measurements of genital structures: penis , in- ternally ribbed portion epiphallus , penial retractor , vagina , oviduct spermathecal duct spermatheca / Type Locality,—South slope of Ml. Graham, Pinaleno Mountains. Graham Co., Arizona; along "Swift Trail" highway, on north side, at a point road miles from its beginning at US highwa elevation ca. 9000 feet, collectors M. L. Walton and W. O. Gregg, 21 April 1954. Type Material.—Holotype. Natural History Mu- seum of Los Angeles County No. 1155. Paratypes: California Acad. Sci., Dept. Geol. No. 12947, Field Museum Nat. Hist. 109587. San Diego Nat. Hist. Museum, invertebrate type coll. 2546, and private collections of S. S. Berry 31922. W. O. Gregg 7038. W. B. Miller 4831. M. L. Walton 6844. Remarks.—The characteristics of the penis place O. grahamensis in the Oreohelix yavapai- group of Oreohelix sensu stricto (Pilsbry, Acad. Nat. Sci. Philadelphia, Monograph 3. vol. 1(1): 573, 1939). Oreohelix grahamensis is most closely related to the O. concentrata
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