INSULARUM MADERENSIUM 95 



Varietates adsiint, 



V. tesla pallido-cornea, sparsim graniilata, fusco-fasciala, anfrartii ultimo 

 basi convexo, antice vix descendente, apertuia subcirculari. 

 Subvar. 1 testa efasciata, immaculata, virescenti-citrina. 



Helix Albersii, Low. Syn.. Diagn. 

 » Bulwerii, var. jS Pfeif. Mon. helic. 

 » » » y Alb. Mal. Mad. (fig. oplima) 



» Albersii, Low. Cat. moll. Mad. 



cum forma typica commixta degit, ast rarior. ^Animal tanliim, timidum, corpore 

 albido-fusco, dorso tulierculis oblongis, albidis asperso, fronte albido-luteolo, 

 inaculis fuscis, longitudinalibus notato, superioribus tentaculis cylindiicis, basi 

 crassiusculis, apice bulbosis, inferioribus brevissimis, fuscescentibus, pede lutes- 

 centi-albido, antice obtusiusculo, postice acuto, pallio albido, punctiilis fuscis 

 asperso, partim submerso, orifício respiratório sphinctere albo, crassiusculo cir- 

 cumdato. 



|3 ma'}or, spira altíssima, prope iV. Senhora da Graça; raríssima. 



Obs. Quamquam varietas a clariss. Rev.'^ Loweo species distincta videatur 

 ob testam minorem, trochiformem, cerino-corneam, basi convexiorem, carinam 

 minus prominentem, aperturam obsoletius angulatam, clariss. Pfeifferi, Albersii, 

 WoUastoni (in litt.) secutus sententiam tantiim meram varietatem H.-Bulweria- 

 nae Lowe babeo. 



Species a clariss. Bulweri nomine sic dieta. 



Primns invenit clariss. Rev.'^ Loweus. 



(b) TESTA UMBILIGATA, SUPRA PLANATA 



87. Helix talieilata, Lowe 



Testa umbilicata, plano-discoidea, perdepressa, íenuis, supra planíssima, 

 rugulosa, grossiuscule granulata, corneo-fuscescens fusco-albo-marmorata; spira 

 tabellato-planata; sutura distincta; umbilicus pnlulus, declivis: anfractus 5-5 '/2 

 plani, lente crescentes, quasi altrili, ultimus supra acate carinalus, carina su- 

 pera, antice vix descendens, basi convexiusculus, pallidus, fusco-unifasciatus; 

 apertura perobli(iua, rotundato-lunaris: peristoma simplex, marginibus subcon- 

 tiguis, callo tenuissimo junctis, basali relloxiusculo, subaiTuatn, supero recto. 

 — Animal velox, non timidum, corpore sordide albido, subtiliter fusco-mamil- 

 lato, collo dorsoque fusco-tubereulatis, fronte nigrescente, macula fusca médio 

 notato, mamillato, superíoribus tentaculis lanceolatis, supi'a lividis, apíce clava- 



