TROCHUS. 761 



f. 3. Rumphius, t. 21. f. A. Petiver Jmb. t. 3. f. 12. 

 Gualter, t. 59. f. B and C. Knorr, ii. t. 5. f. 1, and t. 

 6. f. 1. Gere. t. 5. f. 34. 

 Variety B. AVitli the whirls slightly granulated. 

 Le Bouton de la Chine. Favanne, ii. p. 300, and p. 370. 



t. 12. f. B 2. 

 Lister Conch, t. 620. i. Q. Rumphius, t. 21. f. No. 4. 

 Argeiiville, X. 8. f. C. Geve, t. 6. f. 45. Chemnitz, v. 

 t. 167. f. 1606 and l607. 

 Variety C. With the whirls slightly granulated and undulated 

 at the sutures. 



Trochus tigrinus. Hebenstreit Mus. Richt. p. 324. 

 Trochus pyramidalis, &c. Chemnitz, v, p. 80. t. l67. f. 



1608 and 1609. 

 Lister Conch, t. 619. f. 5. Rumphius, t. 21. f. 3. Gec^. 

 t. 6. f. 44. Regenfuss, i. t. 4. f. 43. 

 Inhabits the Indian Ocean. Linnceus. Coasts of Amboyna. 

 Rumphius. Isles of France, New Zealand, and Otaheite. 

 Favanne. China, and Pulo Condore, Humphreys. 

 Shell three, four, or sometimes live inches long, and about 

 equally broad at the base, ponderous, with the whirls flattish 

 above, and slightly convex below ; the colour is white, with 

 longitudinal red stripes extending over the base, and the shell 

 appears silvery when the outer coat is taken off. Favanne 

 erroneously considered Le Bouton de la Chine to be the 

 Linnaean T. maculatus, and Chemnitz has arranged both this 

 and the T. tigrinus of Hebenstreit as distinct species. 



coNUs. 2. Shell conical, with transverse granulat- 

 ed striae, and the whirls flattish ; inner lip 

 entire. 



Trochus Couus. Gmelin, p. 3569. Schreibers Conch, i. 



p. 250. 

 Trochus acutangulus. Chemnitz, v. p. 81. t. l67. f. I6l0. 

 Trochus Niloticus, Var. Kammerer Cab. Riidolst. p. l60. 

 Trochus, No. 41. Schroeter Einl. i. p. 696. 

 La Poire. Favanne, p. 360. t. 13. f. I. 

 Lister Conch, t. 631. f. 18. 



Inhabits the East Indian Seas. Chemnitz. Coasts of New 

 Guinea, and is very rare. Favanne. 



Shell about two inches long, and an inch and a half in diame- 

 ter at the base ; the whirls are flattish, or only very slightly con- 

 vex, and marked with beaded transverse stria? ; the inner lip 

 is entire, and the pillar sniuous, with the umbilicus extend- 

 ing only through the first whirl ; the whole surface is white, 



