NATICA.— Plate I. (Thes. pi. 454.) 



Fig. 



1. OLLA, sp. 1, Marcel des Sevres. — glaucina, Lamk. not 



Linn. —Mediterranean. 



2. Baconi, sp. 4, Reeve, Con. Icon. sp. 37. — Swan Eiver. 



3. Hekcdlea, sp. 9, Jonas, MS. in B. M. — var. Lewissii, 



Gould. 



4 and 14. didtma, sp. 7, Bolten. — Lamarckiana, Eecl. ; 

 Chemnitzii, Eecl. ; Petiveriana, Eecl. 



5. glauca, sp. 5, Humboldt ; Deshayes, An. s. vert. — patula, 



Sowerby, Z. Journ. 1841, pi. 37. — California. 



6. Eecluziana, sp. 3, Deshayes, Mag. Zool. 1841, Moll. 



pi. 37. — California. 



7. campechensis, sp. 2, Recluz, MS. Mus. Cum.— ^Cam- 



peachy Bay, Grulf of Mexico. 



8. HEEOS, sp. 8, Say, Journ. Acad. Sci. Phil. vol. ii. p. 248. — 



var. duplicata. Say. — Bay of Massachusetts, U. S. 



9. CHTNENSis, sp. 49, Lamarck, An. s. vert. — China, Phlip- 



pines. 



10. Missed number. 



11. viOLACEA, sp. 86, Sowerby, Tank. Cat. App. p. xi. — 



rhodosioma, Philippi. — Isl. Masbate, Philippines. 



