120 PNEUMONOBRANCHIATA. 



16. 1. Vitrina pellucida. 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. Broion, Wern. Trans, ii. 523. t. 24. 



f. 8. (1819). 

 Vitrina pellucida. Drap. 119. t. 8. f. 34—37.; 



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



Neivcastle — Mag. Z. Sf B. ii. 105. 

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

 — Draparnaudi. Leach, Moll. — Jeffreys, L. 



T. xvi. 326. 

 Helicolimax pellucidus. Terns. Hist. Moll. t. 9. 



f. 6. 

 Vitrinus pellucidus. Montf. ii. 239. 

 Vitrina diaphana. 

 depressa. J. 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 ; 



