WORMS. TESTACEA. 82. Nerita. 
S44 
Peregrina, Shell ovate, imperforate : whorls round, dldant and 
ly decreafing: aperture oval. 
^chrat. Einl. in conch. 2. tab. 4 * Af* •*' 
Inhabits American IJlands : half an inch long. 
Shell hyaline, fometimes teftaceous, opake, with 8 or g whof!*' 
Danubialis. Sfiell oblong, imperforaW, with diftartt ventricofe 
aperture orbicular. 
Marligl. Danub. 4. tab 3 1 . Jig. i . 
Schreet. JlnJonch. tab. 10. B jig. 5. 
Inhibits the Da/ntbe : z| inchea long. 
'Tutbinata. 
Shell oblong, imperforate, fmooth, pointed: whorls 
flated, the fifft much larger, the reft gradually 
creafing: aperture fiiboval, margined. 
Marsigl. Danub 4. tab. 3 1 .fig. Z. 
Schrctt.fiujConch tab. 10. i. 
Inhabits the Danube: 3j inches long, and lefs ventricofe ^ 
the laft. 
in' 
de' 
b/ 
Curvata. Shell oblong. Curved, fubimperforate, with an oval 
gined aperture. 
Marjigl. Danub. 4. tab. “it . fig. 4^ 
Schreet. fiufconch. tab. to, B. fig. 3. 
Inhabits the Danube : z\ inches in diameter. 
Exiliti Shell thin, fmooth, white with chefnut bands ; fp*r® ^ 
tufe, with flattilh whorls. 
Keemm.Cah. Rudolfi. tab, 12. fig. 3. 
2. Kcemm. Cab. liud. tab. 1 Z.fiig. 2. 
3, Kiemm. Cab. Rud. tab. to. fig. 2. 
Inhabits Shell 6. -8 lines, 3) an inch long, 
82 . NERITA. Animal q. 
valve, fpiral, gibbous, flattilh at botto’^ , 
aperture leniiorbicular or 
piLlar-lip tranlVerfelj truncate, [ 
A. iJmltilicatf. 
Shell fmooth, with a flightly pointed fpire, and . 
bifid umbilicus- , 63 ' I 
Litier, tab. 559./’. 1. tab. 560. f. 3,4, J. ?. 561. /• 7 - ' I 
Cenrena, 
