154 The MoUuscan Family Plauorbidae 



Hypsogyra, in place of the preoccupied names Adula and Ancaeus. Should 

 this species prove, after anatomical investigation, to have characteristics 

 different from Planorhella, it should bear Lindholm's name. It is very rare 

 and the animal is wholly unknown. It seems, from the features of the 

 shell, perfectly safe to merge the group with Planorhella (see plate 80, 

 figs. 19-21). 



Genus CARINIFEX W. G. Binney, 1863 



Type by original designation Planorbis newberryi Lea 



1863. Carinifcx Binney, Smith. Check-List of Shells. Type Planorbis newberryi Lea. 



As genus 



1864. Megasystropha Lea, Proc. Acad. Nat. Sci. Phil., p. 5 (footnote). Type Planorbis 



newberryi Lea. As genus 



1865. Carinijex Binney, L. and FW. Sh. N. A., II, p. 74. Type Carnijex newberryi 



(Lea). As genus 

 1865. Carinifex, Amer. Jour. Conch., I, p. 50, plate vii, figs. 6-7 

 1870. Megasystropha Tryon, Con. Hald. Mon., p. 84 

 1870. Carinifex Tryon, Con. Hald. Mon., pp. 187, 214, Type Carinifex newberryi (Lea). 



As genus 

 1870. Carinifex Dall, Ann. N. Y. Lye. Xat. Hist., IX, pp. 344, 353. Type Planorbis 



newberryi Lea. As genus 



1883. Carinifex Fischer, Man. de Conch., p. 508. Type Carinifex newberryi (Lea). 



As subgenus of Choanomphahis 



1884. Carinifex Tryon, S. and S. Conch., Ill, p. 105. Type Carinifex newberryi (Lea). 



As genus 



1912. Carinifex Hannibal, Proc. Mai. Soc. London, X, p. 162. Type Carinifex new- 

 berryi (Lea). As subgenus of Pompholyx 



1918. Carinifex Walker, Miscel. Pub. Mus. Zool. Univ. Mich., Xo. 6, pp. 15, 106. 

 Type Planorbis newberryi Lea. As genus 



1923. Carinifex Germain, Rec. Ind. Mus., XXI, p. 188. Type Carinifex newberryi 

 (Lea). As genus 



1923. Carinifex Wenz, Fossil. Cat., Pars 22, p. 1671. Genotype Carinifex newberryi 



(Lea). As genus 



1924. Carinifex Dall. Prof. Pajiers U. S. Geol. Surv., Xo. 132 (G) ]). 112. As synonym 



of Megasystropha Lea 



1924. Megasystropha Dall, op. cit., p. 112. Type Planorbis newberryi Lea. As genus 



1925. Megasystropha Lea, Smith. Miscel. Coll., LXXIII, No. 3, Dec. 16. Opinion 87, 



Int. Com. on Zool. X'^omenclature 



1926. Carinifex Pilsbry, Science, LXIV, p. 248, Sept. 10. Defending use of this name 



instead of Megasystropha Lea 

 1929. Carinifex J. Henderson, Univ. Col. Studies, XVII, No. 2, p. 143. Type Carinifex 



newberryi (Lea). As genus 

 1929. Carinifex Chamberlin and Jones, Bull. Univ. Utah, XIX, No. 4, p. 155. Biol. 



Series I, No. 1. Genotype Planorbis newberryi Lea. As genus. 

 1931. Carinifex Thiele, Handbuch, Teil 2, p. 480. Type Carinifex newberryi (Lea). 



As genus 



1934. Carinifex Pilsbry, Proc. Acad. Nat. Sci. Phil., 86, p. 48. Type Planorbis new- 



berryi Lea. As genus. Figures genitalia of Carinifex ponsonbyi and C. 

 newberryi subrotunda 



1935. Carinifex J. Henderson, Non-Marine Moll. N. A., p. 255. Discussion of genus 



and listing of fossil species C. malheurensis Henderson and Rodeck 



Shell (plate 78, figs. 23-25). Medium to large, ultradextral, body whorl 

 angulated; spire depressed or elevated, the whorls terraced and angular; 

 base funicular; last whorl broad at the periphery, rapidly attenuated 

 below; aperture triangular, outer lip thin; inner lip with slight callus. 



