lii DIV. II. MOLLUSCA. 



ORDER VI. — Pectinibranchiata (continued). 



Family. Gcmis. Subgenus. Exanijile of Species. 



( 13. Lathiva, Mart m. vespertilio, Martim. 



14. Stnithiolaria m. stramineus, Gni. 



15. Pleurotoma, iff»«. -M. babilonius 

 IG. Clavatula 



17. Pyriila, Lam M. rapa, Martini 



18. Fiilgur, Montf. M. perversus, L. 



VIII. Murex, / 



S^ "1 ^^ ' "" T (Tn^7\ \ ^^- t^asciolai-ia, Lam...M. tulipa, L. 



» I ^ ^- K^^oni,).]^ 20. Turbinella, Zam. ..M. scolymus, Mart. 



21. Strombus, Lin 



22. Stronibus,prop.Z«»2. 



23. Pterocera, Lam. , . .Strombus lambis, llond. 



24. Rostellaria, Lam. . . S. pespelicani, L. 

 V25. Hippocrenes, Alart. S. ampins, L. 



ORDER VII. TUBULIBRANCHIATA. 



Allied in most respects to the previous order, but the shell 

 describes a tube only partially spiral, and is attached to foreign 

 bodies. 



Genus. Subgenus. Example of Species. 



I. VermetUS, Ada7lS Serpula lumbricalis, L. 



Vermillia, Delamarck . . S. trigusta, Gm. 



II. Mugilus, Montf. Mugilus antiquus, Mart. 



III. Siliquaria, Brug Serpula anguina 



ORDER VIII. — SCUTIBRANCHIATA, 



In this order, the shell is not turbinated, and is in fact little 

 else than a mere shield to the gills. The animals are true her- 

 maphrodites. 



Genus. Subgenus. Example of Species. 



(\. Halyotis, prop. //am..Halyotis, Gm. 



I. Halyotis, Zm. ..I2. Padolla, Mo?i</. Padolla, Montf. 



1 3. Stromatia, Lam Halyotis imperforata, Gm. 



II. Fissurella, L Patella of Div. V. of Gm. 



III. Emarginula, Lam Patella fissiua, L. 



IV. Parmophorus, Lam Patella ambigua, Chem. 



