138 MOLLUSCA TEnRESTRIA ET FLUVIATILIA 



Habitat rarissime iii umbrosis litimidis insulae Madcrae ad convallem Ri- 

 hfint dn Infnrm, sub herbis lalilans; Ibssilis rara ad Caniçal. 



Oiis. A P.-conciiina Lowe, cui r|iio(lammo(lo allinis, testa fere dimidio mi- 

 niire. plicis brevioribus, striis magis prominentibiis certe dilTert. 



Species sic dicta ob testam curtam, brevissimam. 



Ab affinibns speciebus certc distincta. 



Fossileia iiiiinus itiveiiit clariss. Wollastoiuis; recentem postea Germanus 

 malacoloffus. 



-"o"- 



Scclio Masliila (Lowe) 



Testa perforata s. an<Tiiste umbilicata, tiirbinato-elongata v. cylindrica, 

 Inmcllis membranaceis oriiata; aiifractus 5; apertura 3-plicata; peristoma sub- 

 siiiuatum. 



2'i. I'ii|ia laniellosa, Lowe 



Testa mammiformis, siibtiirbinato s. abbreviato-cyliri(h'ica, piisilia, fe- 

 iiuis, subraembranacea, fusca, efasciata; spira abiireviata, ajiicc obtusissima; 

 sutura profunda; aufractus 5 tumido-coiivexi, lamellis in aufractum medii) 

 foliaceo-dilatatis s. lacero-aculeatis, membranaceis, remotis, pellncidis, equi- 

 distaritilius, obliquis nrnati; apertura semiovabs. de[)ressa, qnàm lon)ía latior, 

 ;i-plicata, [tlica veiilrali I máxima, coiumellari I miiKirc, iiifera, palatati 1 im- 

 mersa, fere iiironspicua; peristoma snbexpansum, subsinuatum, denticulo mi- 

 núsculo insliHicluni. — Animal valde timidum, corjinre exigun, ^^'racili, toto pun- 

 clnlato s. mamillalo, pellucido, superioribus teiitaculis longis, cylindricis, fuscis, 

 subbulbosis, inferioribus sessilibus, punctiformibus, pede valde expanso, ad 

 caudam lonfiam, attenuatam, i)ostice rotundatam desinente. 



Long. 2, diam. 1 ^ 4 mill. 



l'u[»a lamellosa Low. Syn. Diagn.; el Cat. moll. Mad. 

 » » Pfi'if. M(in. lielic. 



» » Alb. Mal. Mad. 



Habitat raríssima sub foliis emortuis super terram in Maderae insulae con- 

 valle Ribeira de Vasco Gil ad lucum Lnmho dn Cravrl dictum, prope Funchal; 

 fossilis ad Caniçal rarissime. 



Obs. H.-aculealam Aliill. externo liabilu (juudaminodd refert; testa vero di- 

 versíssima. 



Sectio sic dicta, (piòd laminis membranaceis lestae oinalae. 



Species ita dennminata, (piòd aiipendicibus lamelliformibus circumdalur. 



A congeneribus certe divei'sa species. 



