VITRINA §. 5. 6. 507 



14. V. marcida Gould. -f 



T. sigaretiformis, tenuis, subopaca, flavo-viridis, deprcsso- 

 orbicularis, lenuiter striata, subperforata ; spirae anfr. ad 3, con- 

 vexiusculi, ultimus amplus, declivis; apex subcentralis ; sutura 

 benc impressa; apertura transversa, elliptica; labrum plerumque 

 membranaceum. — Diam. ^y^o, alt. y^o poU. (G.) 



Viti^ina marcida Gould 18 46. Exped. shells p. 26. 

 Ilabitat in insula Madera: Roche de Empena, 4200' supra marc. 

 Obs. «Differl a V. Lamarckii anfractuum numero majore et animale.» 



45. V. Ruivensis Couthouy. -f 



T. haliotiformis, transverse subquadrata, depressa, papyra- 

 cea, pellucida, nitida, chlorata, gradibus aetatis striata; spira 

 vix conspicua, anfractu 1 rapide crescente; apex lateralis; aper- 

 tura faciem inferiorem adaequans; labrum prope spirara membra- 

 naceum; columella laxe intro spiram volvens et eam penitus ex- 

 hibens. — Lat. "/jo, alt. yio poll. (G.) 



Vitrina Ridvensis Couth. mss. Goidd 1846. Exped. shells p. 26. 

 Habitat in insula Madera, prope cacumen raontis Pico de Ruivo, 

 6210 ped. supra raare. 



46. V. nitida Gould. •{• 



T. depresso-globosa, heliciforrais, tenuissiraa, pellucida, niti- 

 dissima, laevigata, succineo-viridis, imperforata; spirae anfr. 4 

 convexi, ultiraus amplus; apex subcentralis, prominens; sutura 

 excavata; aperlura transversa, subcircularis; perist. inflexum; 

 columella arcuata, usque ad apicem perspicua. — Diam. 'V40, alt. 



y^opoii. (G.) 



Vitrina nitida Gould 1846. Exped. shells p. 26. 

 Ilabitat in insula Madera: Roche de Erapena, 4240' supra marc. 



§. 6. 

 47. V. Cuvieri (Helixarion) Ferussac. 



T. heliciforrais, subglobosa, depressa, argute striata, vires- 



cente fuscescens; anfr ?, ultimus amplissimus, rotundalus; 



apertura subrotundo-Iunata, latere intcriore simplici?; columclla 

 vix spiralis. — Long. 5%, lat. 4'A, axis V/i lin. (Fer.) 



Helixarion Cuvieri Fcr. pr. j). 20. Hisi. t. 9. f. 8. t. 9 A. f. 1. 2. 



— — Blainv. ia Dict. sc. nat. tom. 20. p. 482. 



Vitrina Cuvieri Gray in Ann. of Phil. \ 82B. IX. p. 408. 



— — Soio. gen. N. H ? 



— — Reeve Gonch. syst. II. t. <62. f. 2? 



— Australasiae Blainv. ? 



