JNSULARUM MADERENSIUM 159 



3. Crasiiedopoiíia Lyounetiauum, Lowe 



Testa anguslo-perfnrala, siihcntiipresso v. conoideo-pyramidata, teniiisciila, 

 fusco s. nigro-coffaeacea, liiciila; spiia profliicta; siitura impressa; anfraclus 

 5-5 '/2 convexo-itlaniilati, aeqiiicrescetiles, stiiis spiralibus, ci'eberrimis, grossius- 

 ciilis instructi, ultimus atitice adscendens, siilisolutus, ohsolete angulalo-cariiiatus; 

 apertura subverlicalis, lolundala, spii-a manifeste brevioi'; peristoma simplex, 

 cominuum, rectum; operculum pallide lutescens s. corneum, margine albido. — 

 Animal tardissimum, cito sese recondens, corpore albido-lutescente, pellucido, 

 dorso maciilis rolundatis, miniilis asjierso, fronte aurantiaco, sparsim iiigro-ma- 

 culalo, rostro inciso-truncato, tentacuiis longis, gracillimis, cyiitidraceis, apice 

 subciavalis, nigris, pede aiiiido-plumbeo v. piiipiirino, medio pallidiore, mai-gini- 

 bus nigro-fasciatis, postice acutiiisciiio, operculum tenue, obsolete spirale, sub- 

 lutescens v. corneum, margine albido, fere membranaceo ferente, orificio respi- 

 ratório macula nigra partim munito. 



Long. 4-0, diam. 3, apert. 1 '/-2 mill., spira 2-3 longa. 



Gyclostoma Lyonnetianum, Low. Syn. diagn. 



» » Alb. Aial. Mad. (fig. vix. distincta) 



Craspedopoma » l'feiff. A!on. Pneum. 



» » Low. Cat. moll. Mad.; et Ann. and Mag. of Nat. 



Hist. aug. 18(i0 



Habitat haud raro in Madei'ae insulae convallibus Ribeira de S.'« Luzia, Ri- 

 beiro Frio, ad rupes declives, iriiguas, in convallis Ribeira do Inferno adytis 

 urabrosis copiose. 



Obs. A C. -lúcido Lowe testa multo minore, ad basin diverse conformata, 

 spira produc.ta, striarum diversa dispositione, anfractu ultimo carinato-angulato, 

 operculo albido-corneo, nec castaneo-nibro, certe discernitur. 



Species ita dieta a clariss. Lyonneti nomine, cui a clariss. Rev.'' Loweo di- 

 ca ta. 



Primus invenit clariss. Wollastonus. 



4. Craspedopiiina Irnchoideam, Lowe 



Testa rimata. conoideo-abbreviata, trochiformis, solidiuscula, fusco-olivacea 

 s. viridi-nigi'escens; spira cónica, apice acula; sutura dislincta; rima fere clausa; 

 anfractus 5 '/2 planulati, inaeqiiicrescentes, striolis aequalibus, crebris, exilissi- 

 niis, transversas, inaequales subliliter decussantibus, ullimus angulato-carinatus, 

 súbito praecedenti major, anlice sursum subdilatalus, abrupte adscendens, basi 



