470 WORMS. TESTACEA. 78. 



Corallinm* Shell conic, red dotted with white, {lightly perforated : 

 whorls r und, the firit with 15 rows of tubercles, the 

 next with 6. 

 Inhabits Senegal, Adans. feneg, I, tab* 12, fig, 4. 2) 5. 

 - Shell 4 lines long: fpire with 6 whorls. 



Gri/eus, Shell grey with whitiih fpots ; whorls flattifh and tranf- 

 verfely grooved. 

 Inhabits Senegal, Adanf. Seneg, 1. tab, 12. fig, 6. 



Ferrugineu: Shell convex, the whorls turned contrary. 

 Martin neuefi. Mannigf. 4. tab, I . fig. I, 2. 

 Chemn. conch, 9. /. 114. f. 977. a, b. 

 Found near Scaphufia, converted into Iron ore. 



No*vus. Shell pyramidal with contrary round whorls, 3 of them 

 with a quadruple trifarious row of tubercles, the fourth 

 exceedingly fliitant. 



Spengl. n, Sam ml, Dan. ges. E. tab. I, fig. c. 



Chemn. conch- 9. /. \i$.fi 970. 



Inhabits— — Shell with a flat bafe and comprelled aperture. 



Fragilis, Shell extremely thin and wax-colour: firft whorl of the 

 fpire large, with a brown band in the middle. 

 Inhabits Scbraet, Einl. in conch, I, tab. 3. Jig. 16. minute. 



Qalkjus. Shell obtufely pyramidal : fpire with 4 elevated contiguous 

 whorls, tumid at the margin. 

 Chemn, conch. 9. tab, I 22. fig. 1 05 1 .' 

 Schrait. fiufconch.tab- 6. fig. 10. 2) fig % 12. 

 Inhabits Shell with a compreiled aperture and pervious per- 

 foration. 



Af er » Shell convex, grey with whitifh fpots: whorls flattifh. 



Inhabits Senegal. Adanf. Seneg, I. tab. 12. fig, 6. 

 &k// about 6 lines long and twice as much broad* 



Neritoideut Shell fubovate, convex-deprefTed, fmooth reddifh glabrous. 

 Inhabits Greenland, O. Fabr.fn. Grcznl. p. 393. n, 391. 

 Shell 2 lines long, the inhabitant blueifh-black. 



Penatus, Shell reddifh with elevated dots, unequally ribbed: fpire 

 deprefled, the whorls convex. 

 Inhabits— -~Kamm. Cab % Rudolst t tab, \i*'fig % 1. fmall, 



*Terrestris> 



