Catai.ogue; Recently Described Moeeusca 105 



Segmentina deceivis (Tate). 



Planorhis dccUvis Tate, Am. J. of Con., V, 1869, p. 159. 

 Tvpe locality : San Augustin, Acoyapa, Nicaragua. 



Cited by Dall (32, p. 98) from Umpqua River, Oregon. 



Hannibal (53, p. 158) states that it has not been found by any of the 

 local collectors in that region and questions the authenticity of the locality 

 of Ball's specimens. 



Segmentina obstructa (Morelet). 



Planorhis ohstructus Morelet, Test. Noviss. I, 1849, P- i/- 



Planorbis berendti Tryon, Am. J. of Con., II, 1866, p. 10, pi. 2, figs. 14-16. 



Type locality : Carmen Island, Yucatan. 



"Occurs abundantly in Texas as far north as Austin." (Pilsbry 91, p. 

 322. See also Pilsbry and Ferris, 106, p. 166.) In the absence of a figure 

 of this species in any American publication, I have quoted that of berendti 

 Tryon from Mexico, which is considered a synonym by Fischer and Crosse 

 {38, p. 78) and von Martens (73, p. 398). 



Segmentina wiiEATEEYi (Lea). 



Planorbis wheatleyi Tea, Jour. A. N. S. P. VI, 1866, p. 158, pi. 23, fig. 71 ; 



Obs. XI, 1866, p. 113, pi. 23, fig. 71. 

 Segmentina zvheatleyi Walker, Naut. XX, 1907, p. 123, pi. VII, figs. 7-9. 



Dall (32, p. 97) has proposed a new section, Haldemanina, for this 

 species, based on the "complex, dentiform and ridgelike" lamellae, but 

 these differ from those of the other species {armigera and crassilabris) 

 only in degree. See Pilsbry and Ferriss (106, p. 166) and Walker (1. c). 



Subfamily POMPHOLIGIN^ Dall, 1866. 



■ Genus POMPHOLYX Tea, 1856. 

 PoMPHOEYX LEANA H. and A. Adams. 



Pompholyx leana H. and A. Adams, Pr. Zool. Soc. London, 1863, p. 434. 

 Type locality : West Columbia. 



POMPHOEYX SOEIDA Dall. 



Pompholyx var. solida Dall, Ann. N. Y. Lye. Nat. Hist., IX, 1870, p. 335, 



pi. II, fig. 7a. 

 Type locaHty : West Columbia. 



Dall states that his species is clearly not effusa Lea, but that in the ab- 

 sence of typical specimens of P. leana H. and A. Adams described from 

 West Columbia, it still remains doubtful whether it belongs to the latter 

 species. 



