í^O MOLLUSCA TERRESTRIA ET FLUVIATILU 



fí sericina, testa majore, tiirbinata nec Icnliculari, nilida, tota pallide oliva- 

 ceo-Iiilescente, supra slriis incurvis, regiilaribus, radiatis, distinctius per testam 

 transpeclis, neccostulis remotis notala. — Animal exigiiissimum, pigrum, timidum, 

 rorpore cylindrareo, capite fusco, collo dorsoqne fuscescentibus, superioribus 

 tentaculis brevissimis, crassiiisculis, ápice ovato-bulbosis, inferioribus miiiimis, 

 f(>re inconspiciiis, pede slrictissimo, poslice obtusiuscuio. 



Helix Luseana, Paiv. (Tab. 2, fig. 3) 



Journ. de Coiich., Crosse, oct. 1868, (fig. bona) 



ad Lauroriim miiscos licíienesque in insula Madera convallium Ribeira da Me- 

 tade, Ribeira Brava, piope Rabaçal, S.'" da Serra baud rara, in Caniçal fossi- 

 lis rarior, a clariss. Kev.'' W;itsouo inventa. 



Obs. Etsi H.-pygmaeae Drap. quoad iiabitum valde análoga, species tamen 

 chararteilbus plurimis ab illa divuisa vidolur. 



Species sic dieta ob testam exiguissimam, sane pusillam. 



Priraus clariss. Rev.'' Loweus detexit. 



73. BbHx semijiiicata, PfeiíTer 



Testa umbiiicala, rotundato-discoidea s. convexo-planata, solidula, nitens, 

 pallide lalert-cornea. ruro-lesselala, radiatini niaculala, supra crebricoslala, saepe 

 erosulo-cariosa; spira C()nvexo-|)lanata, fere tabellala, ápice obtusa; sutura im- 

 pressa; umbilicus latissimus, átrio concavo, infundibuliformis, pervius; anfractus 

 7 anguslissimi, planati, lente crescentes, ullimiis superne angulato-carinatus, pla- 

 uus, antice non dellexus, basi convexo-rolnndalus, laevigatus; apertura obliqua, 

 lunato-rolundata; perisloma siniplex, acutum, rectum, margiiiibus conniventibus, 

 columelfiri non reflexo. — Animal timidum, celeriter repens, intra testam rapide 

 fugiens, cnrjjoie cylindraceo. albo, pelhkidn, dorso ad caudam aurantiaco, fronte 

 albo nec maculato, roslro |)r(iliosciiieo, superioribus tentaculis cylindricis, su- 

 pra viiilaceis, apicc vix bulbosis, inferioribus brevibus, ápice luteolis, pede am- 

 plo, poslice obtusiuscuio, [jallio albo; orilicio respiratório minutíssimo, vix 

 conspícuo. 



Diam. maj. 6, min. 5, alt. 2-2 V2 mill. 



Helix semiplicata, Pfeif. Mon. holic. 

 » » Alb. Mal. Mail. (Hg. bona) 



» Gueriniana, Low. Syn. Diagn.; et Cat. moll. Mad. 

 » » Hiiev. Conch. (Hg. vix dislincta) 



