130 



Diam. maj. 30, min. 24, alt. 24 mill. 



Hub. in ripis fluvii St. Johan. Guatemalse (Salle). 



17. Helix platystyla, Pfr. H. testa imperforatd, conicd, so- 

 lidd, costulato-striatd, albidd, lined rufd ad suturam ornatd ; 

 spird conicd, acutiuseuM ; anfractibus 6 convexiusculis, sensim 

 accrescentibus, ultimo obsolete angulato, bast subplano ; aper- 

 tiird obliqud, late lunari ; peristomate simplice, marginibus sub- 

 paraUelis, dextro breviter expanso, columellari supernh perdi- 

 latato, calloso. 



Diam. maj. 22, min. 19, alt. 19 mill. 

 Hub. in insulis Moluccis 1 



18. Helix brevipila, Pfr. H. testd mnbilicatd, globoso-de- 

 pressd, pilis brevissimis, rigidis, quincuncialiter dispositis 

 asperd, haud nitidd, saturate brnnned ; spird parum elevatd, 

 obtusd ; anfractibus vix 5 convexiusculis, ultimo rotundato, 

 antice subdefiexo, circa umbilicum angustum subcompresso ; 

 aperturd obliqud, rotundato-lunari,,intus nitidd; peristomate 

 tenui, brunneo-carneo, breviter expanso, marginibus conniventi- 

 bus, columellari subdilatato-rejlexo. 



Diam. maj. 12, min. 10, alt. ii\ mill. 



Hub. in ora orientali Novse Hollandiae (Mr. Strange). 



19. 'Helix Baskervillei, Pfr. H. testd umbilicatd, globoso- 

 depressd, solidd, striis incrementi rugulosis, lineisque spiralibus 

 impressis subgramdatd, olivaceo-fuscd, parum nitidd ; spird 

 subconoideo-elevatd, apice obtusiusculd ; suturd impressd, cre- 

 nulatd ; anfractibus 6i angustis, convexiusculis, ultimo rotun- 

 dato, antice vix descendente ; aperturd parum obliqud, lunari, 

 dente lingudformi albo jJorietis aperturalis, oblique intrante, 

 coarctatd ; peristomate valide carneo-labiato, margine dextro 

 arcuato et basali subhorizontali, late subdentato late expansis 

 et refexis, columellari brevi, perdilatato, umbilicum angustum 

 semitegente. 



Diam. maj. 24, min. 19, alt. 14 mill. 



Hab. Vancouver's Island (Lieut. Baskerville) . 



20. Helix connivens, Pfr. H. testd angusth umbilicatd, de- 

 pressd, solidd, striis incrementi distinctis, lineisque subtilibus 

 concentricis sub lentb decussatd, corneo-stramined, nitiduld ; 

 spird parum elevatd ; suturd impressd; anfractibus 6 parum 

 convexis, ultimo antice non descendente, peripherid subangu- 

 lato, basi convexiore ; aperturd obliqud, late lunari, intus al- 

 bidd; peristomate intus valide albo-labiato, marginibus conni- 

 ventibus, dextro acuto, parum expanso, basali breviter reflexo, 

 columellari superne dilatato, patente. 



Diam. maj. 26, min. 22, alt. 14 mill. 

 Hab. Liew-Kiew. 



21. Helix GALAexosTOMA, Pfr. H. testd umbilicatd, convexo- 



