-- 139 - 



Hab. Sub saxis et ligno putrido , consort. Puparum , prope Gara- 



chico , Teneriffa, satis copiose. 

 Obs. Specles distlnctissima. 



Helix circumsessa Shuttl. 



Testa niediocriter sed perspective umbilicata, depresso-globosa, ru- 

 fescenti-cornea, concolor, subtiliter plicato — striata, llneis spira- 

 libus epidermide fimbriatis squamulosaj spira convexaj anfr. 4V2> 

 convexi, sensiin accrescentesj sutura profunda j apertura lunari- 

 ovalis, obliqua^ perist. simpIex, acutum, marginibu5 conniventibus. 



Diam. maj. 9, min. 7; Alt. 5 mill. 

 Hab. Sub saxis et foliis emortuis, Teneriffa et Palma. 



Obs. Prope H. ruderatam forsan collocanda, sed sculptura ab 

 Omnibus distincta, H. circumlineatam Küst reminiscens. 



Helix Scutula Shuttl. 



Testa concave umbilicata, depressissima, arctispira, corneo ru- 

 fescens, indistincte rufo-maculata, subtiliter oblique costulataj spira 

 subplana^ anfr. 9, planulati , omnes basi conspicui, ultimus ad peri- 

 pheriam et ad umbilicum latissimum obsolete angulatus, antice sen- 

 sim descendensj apertura subquadrata; perist. rectum, simplex, 

 acutum. 



Diam. maj. 7V2? wiin. 6^/2', Alt. 2V2 mill« 

 Hab. In mont. sub ligno putr., Teneriffa, semel legit Blauner. 

 Obs. Cohortis H. rotundatae evolutio summa. 



Helix eiigoiiata Shuttl. 



Testa latissime perspective umhillcata, depressa, arctispira, brunneo- 

 rufescens, costulataj spira convexa^ anfr. 6V2 convexiusculi, ultimus 

 ad peripheriam carinatus, circa umbilicum conicum acute angulatus; 

 apertura non descendens, subquadrata^ perist. rectum, simplex, acutum. 

 Var. PaHidior, corneo-maculataj anfr. ultimo ad umbilicum 

 obtuse angulato. 

 Hab. Sub saxis et ligno prope Garachico, Teneriffa. 



Obs. H. solariae Mke afßnis , sculptura validiori et anfr. con- 

 vcxioribus distincta. 



Helix retexta Shuttl. 



Testa perspective umbilicata, depressa , arctispira, rufescens, pallide 

 maculata, superne subtiliter costulataj spira convexa^ anfr. 6, con- 

 vexiusculi, ultimus angulatus, subtus laevis, nitidus; sutura albido- 

 marginata; apertura obliqua, subcircularis , non descendens; perist. 

 rectum, simplex, acutum. 



Diam. maj. 7, min. 6-, Alt. 2V2 mill. 



