UNIVALVES. PATELLA. 141 



Chlorosticta Pigeon 1 s-throat. Ulyssiponensis Buckler. 



Tigrina Tiger. Radiata Radiated. 



Ornata Adorned. Lugubris Black. 



Melanogramma Black- ribbed. Vulgata Common. 



Ferruginea Rusty. Ccerulea Blue. 



Crenata Little-grey. Tuberculata White-pimpled. 



Sanguinolenta Rose-streaked. Cochlear Horse-shoe. 



DIVISION III. Shell with the summit perforated. 



Noachina Perforated. Pileolus Open-cap. 



Pustula Doubtful. Scutellum Scutcleon. 



Grseca Cancellated. Picta Painted. 



Atricapilla Black-ring. Nimbosa Scaly-ribbed. 



Nodosa Tuberculated. Nubecula Variegated. 



Perforata Partridge. Porphyrozonias Porphyry. 



Caffra African. Macroschisma Key-hole. 



DIVISION IV. Shell with the summit pointed and recurved. 

 *Ungarica Fool's-cap. Mammillaris Nipple. 



*Militaris Hooked. Leucopleura Small-rayed. 



*Antiquata Antiquated. Tricarinata Three-keeled. 



Cochleata White-ridged. PectmatmSpined. 



Calyptra Helmet. Fusco-lutea Yellowish-brown. 



*Intorta Inclining. Lutea Yellow. 



Cassida Lentil-seed. Perversa Reverse-tipp'd. 



Tranquebarica Brilliant. Lacustris Lake. 



Oblonga Oblong. 



DIVISION V. Shell with a marginal fissure. 

 *Fissura Slit. Incisa Reticulated-slit. 



Fissurata Rose-colour' d. 



DIVISION VI. Shell with an internal appendage at the summit. 

 Equestris Cup-fy-saucer. *Sinensis Chinese-bonnet. 



Neptuni Neptune' s-cap. Auriculata Ear-shop' d. 



Tectum Chinese-roof. Duplicata Double. 



DIVISION VII. Shell with an internal transverse partition. 

 Trochiformis Trochus-shap'd. Trochoides Wave-ribbed. 



