. The Death valley expedition. A biological survey of parts of California, Nevada, Arizona, and Utah. Zoology; Botany; Natural history. 282 NORTH AMERICAN FAUNA. [ below the sutures, the upper-lateral portion rather flattened, periphery and base convex. Surface smooth, horn-colored. Aperture oblique, ovate, angled above, broadly rounded below; upper portion of the inner lip adherent to the body-whorl, lower portion arcuate, without a callous thickening. "Alt. 3, diain. 2£ram. " Collected from a warm spring (temperature 97° F.) in Pahranagat Valley, Nevada, by Dr. 0. Hart Merri
. The Death valley expedition. A biological survey of parts of California, Nevada, Arizona, and Utah. Zoology; Botany; Natural history. 282 NORTH AMERICAN FAUNA. [ below the sutures, the upper-lateral portion rather flattened, periphery and base convex. Surface smooth, horn-colored. Aperture oblique, ovate, angled above, broadly rounded below; upper portion of the inner lip adherent to the body-whorl, lower portion arcuate, without a callous thickening. "Alt. 3, diain. 2£ram. " Collected from a warm spring (temperature 97° F.) in Pahranagat Valley, Nevada, by Dr. 0. Hart Merriam, and submitted to the writer by Br. R. E. C. Stearns. " This species differs from Hald., in the much more distinct umbilicus, thin texture, and the non-tkicJcened inner lip. " Specimens may be seen in the National Museum (No. 123626) collected at Warm Springs, Pahrana- gat Valley, Nevada, by Dr. C. Hart Merriam, May 25, ; This form, not previously described, is regarded by Mr. Pilsbry, who is an authority on the shells of this and allied groups, as a new species. It was found associated with Tryonia clathrafa) else- where noted, the temperature of the water being lug. 2. Flumiincolanier- â ⢠â 97° F Fluminicola fusca Hald. var. minor. Ash Meadows, Nye County, Nevada (Mus. No. 123624), F. .Stephens, Mr/rch 4, 1891. Numerous (200) living specimens of nearly uniform size in spring. Fluminicola nuttalliana * Lea. .Shoshone Falls, Idaho (Mus. No. 58596). A large number of specimens, probably as many as two hundred and fifty, were collected at this locality by Dr. Merriam (October 10,1890), who found them clinging to the rocks in the stream. They vary consider- ably in elevation of the spire, etc., but the form of the mouth is quite persistent. A dwarfed but characteristic aspect of this species occurs among the surface shells in the Colorado Desert. Suborder SCVTIBRANCHIATA. Section RuiroDOGLOSSA. Helicina chrysocheila Binney. Hidalgo, Tama
Size: 1485px × 1682px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubje, booksubjectbotany, booksubjectzoology
