120 PNEUMONOBRANCHIATA. 



16. 1. VITRINA pelludda. Transparent Glass Bubble, 

 (t. 4. f. 21.) Shell green, depressed, hyaline and 

 glossy ; whorles three, aperture somewhat oval. 



Helix pellucida. Mutter, Verm. 16.; Penn, B. Z. 



iv. 134 (?) 



Helix Draparnaudi. Cuv. 

 fuscescens. Gmelin. 3639. 



diaphana. Poiret. 



nitida jun. Montagu, MSS. 



limacoides. Alien. 



elliptica. Brown, Wern. Trans, ii. 523. t. 24. 



f. 8. (1819). 

 Vitrina pellucida. Drap. 119. t. 8. f. 3437.; 



Fleming, Phil. Zool. ii. t. 4. f. 1 . ; Alder, Trans. 



Neiocastle Mag. Z. B. ii. 105. 

 Vitrina Miilleri. Jeffreys, Linn. Trans, xv. 326. 

 Draparnaudi. Leach, Moll. Jeffreys, L. 



T. xvi. 326. 

 Helicolimax pellucidus. Ferus. Hist. Moll. t. 9. 



f. 6. 



Vitrinus pellucidus. Montf. ii. 239. 

 Vitrina diaphana. "| 



depressa. \ Jeffreys, L. T. xvi. 326. 



Dillwynii. 



elongata. Jeffreys, L. T. ; Turton, Man. ed. 



1., not Drap. 



Vitrina beryllina. Pfeiffer, 47. t. 3. f. 1. 

 Cobresia helicoides vitrea. Studer. 

 Hyalina pellucida. Studer. 



In woods, among decayed leaves, and under stones. 



Animal light-coloured above, with black head and 



horns ; under part light-coloured, bordered with black; 



