9 



612 a. II. Mon trouzieri S ou ver b ic. f 



„Testa profunde latissimeque perumbilicata, subconoi- 

 deo-orbiculata, depressa, planorboidea, biconcava, tcnuis, 

 subdiaphana, pallide Cornea, oblique et minutissime undu- 

 loso-striatula ; spira perdepressa, medio profunde immersa, 

 perinfundibularis, apice laevigato; anfr. 8 — 8V 2 angustissimi, 

 vix convexiusculi , onmes , infra supraque in infundibulum 

 immersi, scalares, carinati (carina plicato-corrugata extus 

 intusque marginata) , ab anfractu praecedenti sutura pro- 

 funde impressa separati; apertura obliqua, teretiuscula, sub- 

 fissurata (alt. 4 mill., lat. vix 2 / 3 mill.), interne latior quam 

 superne. — Perist. simplex , unduloso-sinuato , marginibus 

 remotis, callo arcuato (tantum duplex) a margine dextro 

 remoto junctis. — Diam. maj. 8, min.7 l j 2 , alt. 4 mill." (S.) 



Relix Montrouzicri Souv. in Journ. Conch. VII. 1858. 

 p. 63. 



Ilelix biconcava Gass. mss. (ib. p. 68.) 



Habitat in insula Art Novae Caledoniae (P. Montrou- 

 zier). 



628a. H. paucispira Poey. 



Poet/ Memor. II. p. 13. — Pfr. in Malak. BL 1858. 

 p. 41. 180. — Cuba. 



738a. H. Volutella Gassies.f 



„Testa parva, superne et subtus aequaliter concava, 

 Planorbium instar regulariter involuta, anfractu ultimo valde 

 elevato et anguloso marginem acutum formante; regulariter 

 et subfortiter striata, luteo-cornea, maculis rubicundis notata ; 

 apex valde immersus, lucide flavus; anfr. 7 1 / 2 confertissimi, 

 sensirn accrescentes ; sutura parum profunda ; apertura 

 angusta, fere incumbens in anfr. ultimo, utrinque in an- 

 gulum acutum producta; perist. simplex, acutum. — Diam. 

 5V 2 , alt. 2,Va miH-" (G. gall.) 



Helix vulutella Gass. in Journ. Conch. VII. 1858. 

 p. 70. Nee Pfr. 



Habitat in Nova Caledonia. 



