IIELIX §. 121. 122. 299 



Helij^ pollodonta Orh., Pfr. Mon. I. p. 407. u. H)60. 



— — Reeve Conch. ic. n. 1485. t. 209. 



— — (Ophiogyra) Pfr. Vers. p. 136. 



llabitat in Boliviae provincia Lagunensi. 



Obs. Lamellae et dentiuni series plures fraclo ultinio anfractu con- 

 spiciuntur. 



* 



1919. sculpturata Gray. [Rv. n. U71. t. 208. — 



Sculptaria Pfr. Vers. p. 135.) Mon. I. p. /.08. 



§. 122. 



19-20. Linnaeana Pfr. [Rv. n. 226. t. 48. — Caracolus 

 Pfr. Vers. p. 141. — Lucerna Linn. [Serpcntulus] 

 Ad. Gen. p. 201.) - -- 390. 



1921. H. Amazonica Pfr. 



T. umbilicata, depressa, solida, superne confertim undulalo- 

 plicata et subgranulata, fulva, ad suturam et carinam rufo- 

 maculata; spira vix elevata, obtusa; anfr. Sy^ parum convexi, 

 regulariter accrescentes, ultimus non descendens, peripheria sub- 

 acute carinatus, basi inflatus, confertim radiato-striatus, flave- 

 scenti-albidus, rufo-multifasciatus; umbilicus angustus, pervius; 

 apertura parum obliqua, angulato-lunaris , intus margaritacea; 

 perist. breviter reflexum, margine supero fere horizontaliter pa- 

 tente, basali arcuato, columellari in laminam triangularem forni- 

 catam expanso. — Diam. maj. 53, min. 41, alt. 23 mill. (Mus. 

 Cuming.) 



Helix Amazonica Pfr. in Proc. Zool. Soc. 1854. p. 286. 



— — Reeve Conch. ic. n. 1386. t. 197. 



— — (Solaropsis) Pfr. Vers. p. 138. 



Habitat in ripis fluvii Amazonura. 



Obs. Peraffinis TT. serpentl Sptjc; dilTert statura, testa solida, subtus 

 inflata, sculptura, margine dextro fere horizontali, etc. 



1922. H. saturnia Gould. 



T. umbilicata, sublentiformis, tenuiuscula, oblique striata 

 et minutissime granulata, fulva; spira conoideo-convexa, obtusa; 

 sutura submarginata ; anfr. 47^ planiusculi, regulariter accre- 

 scentes, ultimus prope suturam turgidulus, anlice non descen- 

 dens, peripheria subacute carinatus, basi inflatus, obsolete spi- 

 raliter sulcatus ; umbilicus mediocris , apertus ; apertura pai^um 

 obliqua, rhombco-Iunaris; perist. expansum et reflexum, mar- 

 ginibus callo tenui junctis, columellari fere verticali, extus di- 



