THE CYCIiOPHORID LAND MOLLUSKS OP AMERTQA 267 



APEKOSTOMA (APEROSTOMA) INCA (Orbigny) 



Plate 39, Figube 12 



1835. Cyclostoma inca Orbigny, Mag. Zool., p. 29. 



1837. Cyclostoma inca Orbigny, Voyage dans rAm^rique m^ridionale . . ., vol. 5, 



p. 361, pi. 46, figs. 21-23. 

 1843. Cyclostoma inca Sowerby, Thesaurus conchyliorum, vol. 1, p. 92, pi. 24, 



figs. 71-72. 



1846. Cyclostoma inca Pfeiffeb, Martini-Chemnitz Conchylien Cabinet, vol. 1, 



sect. 19, p. 12, pi. 1, figs. 5-7. 



1847. Aperostoma inca Pfeiffee, ZSeitsch. malak., p. 104. 



1850. Cyclotus inca (pars) Gray, Nomenclature of molluscous animals and shells 

 in the collection of the British Museum, pt. 1, p. 6, 



1897. Neocyclotus (Neocyclotus) inca (pars) Kobext and Moixenbobff, Nachrb. 

 deutschen malak. Ges., vol. 29, p. 137. 



1923. Poteria (Neocyclotus) inca H. B. Baker, Occ. Pap. Mus. Zool. Univ. Michi- 

 gan, No. 137, p. 44. 



Shell depressed-orbicular, moderately thick, transversely striate, 

 greenish with a dark band belovs^ the median hair line. Spire pro- 

 longed. Suture profound. Whorls 5. Aperture circular; lip thin, 

 bluish within. Alt. 19 mm. ; diameter, 34 mm. 



Habitat: Bolivia. 



This is a translation of Orbigny's Latin diagnosis in the Magasin 

 de Zoologie. To this we may add from Orbigny's "Voyage . . .," p. 361 : 

 The specimen came from Yungas, Bolivia. 



In this work Orbigny figures the animal, which is a beautiful rose- 

 colored creature. The shell is rather poorly represented, so we have 

 copied Sowerby's figure. 



APEROSTOMA (APEROSTOMA) FILOLIRATUM (Sowerby) 



Plate 39, Figures 14-16 



1892. Cyclotus filo-Uratus Sowerby, Proc. Zool. Soc. London, 1892, p. 298, pi. 23, 



figs. 17-19. 

 1923. Poteria (Neocyclotus) filo-Uratus H. B. Baker, Occ. Pap., Mus. Zool. Univ. 



Michigan, No. 137, p. 41. 



We have not seen specimens of this species so give a translation of 

 Sowerby's description and copy his figure. 



Shell broadly umbilicated, somewhat depressed, olivaceous. The 

 suture with a dark olivaceous brown zone marked with numerous hair- 

 like axial ribs. Spire slightly elevated. Suture profound. Whorls 

 5, convex. The last not descending, concavely depressed near the 

 suture, carinated at the periphery ; otherwise convexly rounded. Aper- 

 ture subcircidar ; peristome continuous, simple, slightly thickened. 

 Altitude, 12 mm. ; greater diameter, 36 mm., lesser, 30 mm. 



Habitat : Bogota, Colombia (Museum Da Costa) . 



"The thread-like ridges on the body-whorl of this shell are much 

 more distant and prominent than in O. hlanchetiammi (Moricand) 



