PLATE VIIL 



FIG. I. 



TROCHUS MAGUS. 



TUBERCULATED TOP SHELL, 

 GENERIC CHARACTER. 



Animal a slug. Shell conic. Aperture nearly triangular. 



SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Pyramidal somewhat depressed ; base umbillcated. The ridges of the 

 spires rising into distinct tubercles. 



Trochus Magus, testa oblique umbillicata: convexa, anfractibus 



supra obtuse nodulosis. — Gmel. Linn. Syst. Nat. 



Conch, p. 3567. — S>. 7. 

 Trochus acuminatus, crebris striis transverse et undatim dispositis 



donatus. The wavy striated trochus, pearl-coloured. 



Borlase Cornw. p. 278. tab. 2%. jig. 6. 

 T. magus tuberculated. Penn. Br. Zool. No. 107. tab. SO.fg. 107. 

 Sabot sorciere. Argenville Conch. I. p. 263. 

 Trochus pyramidalis umblicatus, anfractibus supra marginatis, infra 



nodulosis, albus, rubro variegatus. Tuberculatus. 



Da Costa. 25. tab. 3. Jig. 1.1. 



