113 



Gould's Report, p. 164, f. 95. 



(Bullaea.) ? 



;s Bulla velum, Gmel. 



is Bulla akera, Gmel. 



is Bulla hydatis, Linn. 

 Bulla hyalina, Gmel. 



Born Mus., pi. 9, f. 1. 



Blain. Mai., pi. 45, f. 7. 



Bost. Jour., v. 2, pi. 4, f. 6. 



Poli, v. 3, pi. 46, f. 28. 



Don. B. Shells, v. 3, pi. 88. 



Gould's Invert., p. 162, f. 92. 



Sowb. Gen., f. 3. 



Poli, 3, pi. 46, f. 3, 4. 



Wood's Supp., pi. 3, f. 1. 



Knorr Verg., 6, pi. 38, f. 2, 3. 



Lister C., pi. 715, f. 74. 



Gould's Invert., f. 96. 



Walk. Test. Min., f. 61. 



Pennt. B. Z., V. 4, pi. 73, f. 5, 6. te Bulla cylindracea, Pennt. 



Sillim. Jour., v. 28, p. 350, f. 5. 



Martyn's Univ. C., v. 1, pi. 11. 



is Bulla undata, Brug. 



En. Moll. Sic., p. 123. 

 Sowb. Gen., f. 7. 

 Kamm. C., pi. 3, f. 1-3. 

 Martini, 1, pi. 22, f. 202, 3, 4. 

 Bost. Jour., v. 2, pi. 1, f. 8. 

 En. Moll. Sic., pi. 7, f. 21. 

 Wood's Index, pi. 18, f. 25. 



Chemn. 10, pi. 143, f.1348-49. Bulla fasciata, Brug. 

 Voy. Astrol., pi. 26, f. 13-16. Bulla calyculata, Sowb. 



is Bulla cylindrica, Chemn. 

 is Bulla Ceylanica, Brug. 



Bulla nitidula, Dillw. 



.8 



CLASS. GASTEROPODA 



ORDER. P L E U R OB R A NC H I A T A. 



FAMILY SEMIPH YLLIDI A N A. 



GENUS PLEUROBRANCHUS. C UVier . 



3203 membranaceus, Flem., 



3204 Peroni, Cuv., 



3205 plumula, Mont., 



Devon, England, Sowb. Gen., f. 1, 2. 



Sicily, Ann. du Mus., v. 5, pi. 18, f. 1,2. 



England, Mont. Test. B., 2nd Vign. 



15 



