— 95 — 



telöe, mais couverte d'iine granulation microscopique qui tantot suit un arrangemeut trans- 

 versal, et taatöt spiral. 



Ces particularit^s m'obligent ä donner une nouvelle diagnose plus preeise. 



T. imperforata, convexo-depressa, solidiuscula, striata, retimlato-malleata , minu- 

 tissime in lineis Iransversis et decurreritibns gramilata, nitidiuscnla, obscure flavcscens, 

 rare alhovermiculata, fasciis covflutnlibus ftiscis, supra 3, infra 2 picta, ad basin albes- 

 cens. Spira depresso-conica ; nticieo mimtto, rufo-fusco, laevigato; sutiira modice im- 

 presso, infra albo striato-macidata. Ävfr. d'j^, supra convexiuscidi, obtuse subangulati; 

 ultimus arcte rotnvdatus, subito descendens, in idtima tertia valde attenuatus, deinde 

 angidate in flatus et fortiter constridus. Apert. perobliqua (60° cum axi), obtuse et irre- 

 gidariter triangidaris, subcoarctata. Perist. album, fortiter subplane reflexum, extus 

 acutum, intus perincrasscdiim; marginibus paido approximatis , callose junctis; dextro 

 supra insigniter sinuato et obtuse subtid> er culato, cum basali aiigulo acidojuncto; basali 

 crasso, piano, intus rectusiuscolo, paulo concavo, ad insertionem concave appresso. 

 Diam. maj. 19, — min. 16, — Alt. 11 Millim. 

 Rat. anfr. 2:1. — Bat. apert. 9 : 7. 

 Yar. velusta Mousson. 



Depressior, supra convexo-planidata, sutura minus impressa, anfr. ultima stdmngu- 

 lata, antice insolite attenuato, apcrtura parmda. 

 Ten^rife (Fritscli). 



La depression de la spire, Taugulation un peu sensible du deruier tour, son atteuuation 

 avant le renflement, et la stricture marginale la differeucient du type. 

 19. Helix invernicata Mousson. 

 Helix consobriua auct. part. non Ferussac. 



Webb et Bertbelot. 1833. Ann. d. sc. nat. XXVIII. Syn. 311. 

 » » d'Orbigny. 1839. Moll. cau. 54. 



» » Pfeiffer. 1848. Mon. Hei. I. 269. . 



T. imperforata, depresse-subglobosa, striatidn, irregtdariter malleata, obsolete minu- 

 tissime gramdata, vtrnicose-pernitida, fusco-flava, 4-5 fusco-fasdata, striis ad maculis 

 flavis vermicidata. Spira obtuse-coiwexa, regularis; summo minido, fusco-purpureo, 

 laevigato ; sutura simplici, suhimpressa. Anfr. 4'js, subceleritcr accrescentes, convexius- 

 cidi; ultimus major, descendens, vix iiiflcdus, parum constridus, rotundatus, subtus 

 pallidior in medio paulo impressus. Apertur a obliqua (50° cum axi), transverse irre- 

 gidariter ovalis, subampla. Perist. actdum, modice reflexum, intus paulo incrassatum; 



