— 145 — 



Long, circa 2^/3 mül.; Lat. I2/3 J Apert. 1 niill. long. 

 Hab. Sub folüs cmortuis etc. , Teneriffa et Palma rariss. 



Piipa castaiiea Shuttl. 



Testa rimato-perforata, ovato-oblonga , striatula, nitida, fasco- 

 castanca, basi pallidiorj spira obtusa^ anfr. 6, convcxi, ultimus 

 basi subcompressus5 sutura satis profunda j apertura rotundato- 

 ovata, ö-plicata^ plica angulari 1 valida, flexuosa, ab angulo remota3 

 parietali 1 recedentij columellari 1 valida, inflexa; palatalibus 3, 

 I valida immersa, altera minuta saepe obsoleta; perist. carneo- 

 fuscum, incrassatuEQ , expansum, margine dextro superne flexuoBO, 

 subtuberculato. 



Long. 3 3 Lat. fere 3 mill. : Apert. 1 mill. long. 

 Hab. Cum priori, Teneriffa et Palma. 



Obs. Praecedenti proxime affinis, et cum illa prope P. anglLcam 

 collocanda. 



Cyclostoiiia (Craspedopoma) costatum Shuttl. 



Testa rimato-subperforata , globoso-conica , tenuis , pulcherrime 

 costata, costis lamelliformibus, in anfr. ultimo versus aperturam 

 evanidis, fusco-corneaj spira acuta^ anfr. 5, convexi, ultimus 

 basi inflatusj sutura profunda^ apertura circularisj perist. duplex, 

 externura tenue membranaceum, internum paululum recedens, albo- 

 incrassatum 5 Operculum membranaceum , pallidum, arctispirum, sub- 

 tus lamina prominenti in aperturam intranti auctum, aperturam 

 superficialiter claudens. 



Diam. 4 5 Alt. 4 mill. 

 Hab. Ad folia putrescentia , Palma, satis copiose. 



Hydrocaena (Parreyss) Pf. ex parte. 



Char. Gen. Operculum tenue, corneum, paucispirum, nucleo valde ex- 

 centrico, marginera basalem columellarem fere attinenti; 

 Testa imperforata, globoso-turbinata vel ovata^ Apertura 

 ovalis vel semicircularis^ Perist. simplex, rectum, disjunctum; 

 columella basi effuse callosa. 



Hydrocsena Gutta Shuttl. 



Testa globoso-ovata , laevis , nitidiuscula, pellucida, flavo-rufescens j 

 spira elataj anfr. 31/2 — ^^ convexi j sutura profunda j Apertura 

 semicircularis ; Perist. simplex, acutum, rectum, margine colu- 

 mellari callo nitidissimo effuso ornata. 



Vix ultra 3V2 va\\\. alta et lata. 

 Hab. Consort. Helicis Clymene , Pupa castanea etc. sub saxis udis 

 in Teneriffa: varietas minor occurret in Palma. 



