470 WORMS. TESTACEA. 78 . Murcx. 
Ciralltnus, Shell conic, red dotted with white, (lightly 
whorls r 'und, the firil with 15 rows of tubercle®’ 
next with 6. 
Inhabits Senegal, Adans, ftneg, I. tab, 11, fig. 4. z) 5- 
4 lines long; with 6 whorls. 
Gri/eus. Shell grey with whitilh fpots : whorls flattilh and 
verfely grooved. 
Inhabits Senegal, A^anf, Seneg, I. tab. 11. fig, 6 , 
Ferrugimus Shell convex, the whorls turned contrary, 
Martin reuejl. Mannigf. 4. tab. \,fig. i, z. 
Chemn. conch. 9. t, 1 1.4. f. 977. a, b 
Found near Seaphuji/x, converted into Iron ore. 
Ntnvus. 
Shell pyramidal with contrary round whorls, 3 jili 
with a quadruple trifarious row of tubercles, the n’ 
exceedingly ftillant. 
Spengl. n. Samml. Deen. ges. l. tab. 1 . fg, 5 . 
Chemn. conch- 9. l, itj.f, 970. 
Inhabits Shell with a flat bafe and compreiTed aperture- 
of 
Fragilif, Shell extremely thin and wax-colour: firfl whorl 
fpire large, with a brown band in the miduie. _ 
Inhabits— £inl. in conch, i , lab. 3 . Jig. 1 6. niin'' 
Callofut, Shell obtufcly pyramidal ; fpire with 4 elevated cotitiS^' 
whorls, tumid at the margin. 
Chemn. conch- (). tab, ill. Jg, 1051. 
Schreet, Jlijco’ich. tab b.fig. 10. z) fg, 11 . 
Inhabits Shell with a comprefl'ed aperture and 
loration. 
pervious p 
Afif* Shell convex, grey with whitifh fpots : whorls flattilh- 
inhabits Senegal. Adanf. Seneg, I. tab. Xl.fg. 6 . 
Shell about 6 lines long and twice as much broad' 
Neriioideus Shell fubovate, convex-deprefTed, fmooth reddilh glabro*^" 
inhabits Greenland, O. Fabr. fn. Greenl.p. 393. n, 39 ** 
Shell 2 lines long, the inhabitant blueifli-black. 
Perlatus, SJigj] reddifh with elc'''ated dots, unequally ribbed:/?* 
depreffed, the whorls convex. 
Inhabits— Cab, liadolst, tab, 12, fig, I. fnialh 
