86 UNIVALVES. — CYPR^A. 



Division III. — Umbilicated. 



Onyx — Onyx, Hirundo — Swallow. 



Subflava — Yellowish. Ursellus — Brown-spot, 



Clandestina — Clandestine, Lutea — Yellow. 



Succincta — Banded. Asellus — Three-handed. 



Ziczac — Ziczac. Enones — Olive-mottled. 



Zonata — Zoned. Pyrum — Pear. 



Punctata — Dotted. 



Division IV. — With the margin thickened. 



Moneta — Money. Stolida — Square-spotted. 



Annulus — Annular, Tabescens — Slender. 



Caurica — Thick-edg'd. Helvola — Star. 



Dracaena — Angular-marked. Angustata — Narrow. 



Cruenta — Ferruginous, Ocellata — Eyed. 



Cribraria — Umbilicated. Albuginosa — Bird's-eye. 



Erosa — Bordered. Poraria — White-spot. 



Flaveola — Ochreous, Gangranosa — Gangrene. 



Spurca — Narrow -margined. Fimbriata — Fimbriated. 

 Tessellata — Mosaic. 



Division V. — With the backs ribbed, wrinkled, or 



TUBERCULATED. 



Oniscus — Woodlouse. Europea — European. 



Sulcata — Sulcated. Madagascariensis-il/a^/agrtiTar. 



Aperta — Wide-mouthed. Pustulata — Pustulated. 



Division VI. — Beaked at the extremities. 

 Family 1. — Haviiig raised dots on the back. 

 Nucleus — Wrinkled. Staphylea — Groove-back' d. 



Cicercula — Vetch. 



Family 2. — With the back smooth. 

 Margarita — Pearl. Globulus — Globular. 



