1 iO MOLLUSCA TERRESTRIA ET FLUVIATILU 



iii triarigulum ilispositis, ventrali 1 majore, columellari 1, palatalihu 1-2 inae- 

 qiialibus, perislomate iiiflexo-siriuato. — Animal timidum, celeriter intra testam 

 si'se recnndens, corpore eiongato, cylindraceo, alijo, pellucido, dorso plumijeo, 

 siiperioribus tentaculis cylindricis, brevibus, ápice sul)biilbosis, inferioribiis vix 

 ronspicuis, pede albido-plumbeo, postice acutiusculo, pallio albido, túrbido s. 

 exserto, orifício respiratório rotundato, minimo, fere inconspicuo, sphinctere 

 destitulo. 



Pupa seminiilum Low. Syn. Diagn. ; et Cat. moil. Mad. 



» » Pfeif Alnn. lielic. 



» » Alb. Mal. Mad. 



Rara degens in Maderae insiilae convalle Ribriía de J. Gomes jiixta Ca- 

 ])ella do Bom Successo ad aquaeductum, berbis adhaerens, necnon in rupium 

 íissuris contiguarum; ad Fajã dos Asnos super terram arboribus adumbiatam. 



Obs. Ciariss. Rev/ Lowei qui dubiam speciem merumque P.-saxicolae 

 statum piisilhim dicit, et ciariss. Albersii, Rev.'' Watsoni qui illius varieiatem 

 hajjent, opinionem seqiior, a ciariss. Pfeiffero, et Wollastono (in litt.) aegre rece- 

 dens, qni P.-seminulum Lowei distinclam speciem arbitrantur. 



Sectio você liac dieta, quód testae apertura intus in crucem positis dentibiis 

 reverá instructa. 



Species recens primiim a ciariss. Leacocko et Wollastono detecta; recens 

 a ciariss. Rev.'' Loweo; Var. y. a ciariss. Leacocko primúm inventa. 



Gen. Balea, Prideaux 



Testa fiisiformis, claiisiliaeformis, clausio destituta, plerumque sinistrorsa; 

 coluraella simplex; apeitura suhpyriformis, semiovalis, plica parictali 1 munita; 

 peristoma acutuin, expansum, marginibus inaeqnalibus. — Animal iit in Heliceis 

 conformalum: lingua dentibus in series plurimas dispositis. — ^Genus inter I'upas 

 et Clausilias intermedium: ab illis peristomatis marginibus inaeijualibus, ab bisce 

 (ipcrculiíormis clausii absentia recedens. 



Ill tota fere Europa, in Nova Granada, etc. 



Balea jicrvcrsa, Linnaeus 



Testa rimata, sinistrorsa, tennissima, fragilis, fusiformis, olivaceo-cornea, s. 

 flavescens, sericina, subtititer irriigulariter striato-rugulosa s. costulata; spii-a 

 turrita, ápice acutinscnla; sutura impressa; coluniella siibunidentala; anfractus 

 8-9 convexiusculi, nilimus basi rotundntiis: cobimella simplex: apertura angu- 

 )alo-pyi-irorniis, iamella ventrali ad marginis insertionfm nniala: pi'risloma sim- 



