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PLATE LXXXVIIL 



BULLA HYDATIS„ 



PINNACE DIPPER3 OR BUBBLE SHELL* 

 GENERIC CHARACTER. 



Animal Limaix. Shell rather convoluted at one end, sub-ovaL 

 Aperture oblong, 



SPECIFIC CHARACTEJt 



AND 



SYNONYMS. 



Oblong-ovall, fragile, pellucid, finely striated loiigltudlnally, base 



deeply umbllicated. 



Bulla Hydatis: testa rotundata pelluclda longltudinaliter substrl- 

 ata: vertlce umbllicato. Linji. Syst. Nat. p. 1183* 

 No. 377. — Gmel. Linn. Syst. Nat. 3424. sp. 9 . 



Nux Marina umbilicata, minutlssime per longitudinem striata, sub- 

 rotunda, ore admodum patulo, tenius, fragilis can^ 

 dida. Gualt. 1. Conch, tab. 13* fg. D.D, 

 Chemn. 9. t. 118./. 1019. 



Bulks d'eau blanches, papyrac^es. Tonnes a bouche entlere. D^Avila 

 Cab. p. 207. iVb. 389. 



Bulla Ovalls, fragilis et pelluclda. Naviacula. Da Costa Br, Conch. 

 p. 28. sp. VS.— Tab. I. jig. 10. 

 VOL. HI. Tu 



