772 TROCHUS. 



653. t. 3. f. 10. Gmelin, p. 3567. Schreibers Conch, i. 

 p. 241. 

 Inhabits the Mediterranean. Linnaus. 



Linnaeus has described this shell to be smaller than a hazle- 

 nut, and Chemnitz's figure is about eight lines long, and 

 somewhat broader, but Schroeter's is almost twice as large ; 

 it consists of four or five whirls of a ferruginous colour, with 

 four whitish or yellowish longitudinal rays, which form an 

 irregular cross. 



PHARAONius. 30. Shell sub-ovate, with crowded 

 transverse rows of rounded beads ; aperture 

 and pillar toothed, and the umbilicus cre- 

 nated. 



Trochus Pharaonius. Linnaus Si/st, Nat. p. 1128,. Born 



Mus. p. 329. Chemnitz, v. p. 109. t. 171. f. 1672 and 



1673. Schroeter Einl. i. p. 653. Gmelin, p. 3567. 



Schreibers Conch, i. p. 241. 

 Variety A. With alternate rows of crimson and chequered 

 black and white beads. 

 Le Bouton de Camisole. Favanne, ii. p. 415. 1. 13. f. V 1, 



and magnified, V 2. 

 Bonanni Rec. and Kirch. 3. f. 222 and 223, magnified. 



Lister Conch, t. 638. f. 26. Petiver Gaz. t. 14. f. 10. 



Gnalter, t. 63. f. B. Argenville, t. 8. f. Q. Knorr, i. 



t. 30. f. 6, and iv. t. 26. f. 3 and 4. Geve. t. 13. f. 102 



and 103. 

 Fariety B. With the beads smaller and mostly crimson, with 

 three or four rows chequered, and of these only every third 

 bead is black. 



Le Vasset. Adanson Senegal, t. 12. f. 3, 

 Le Bouton de Camisole de Goree. Favanne, ii. p. 417. 

 Lister Conch, t. 637. f. 25. Geve. 1. 13. f. 101. 

 Inhabits the Mediterranean. Linnccus. Red Sea. Petiver. 

 Coast of Brazil. Bonanni. Goree. Adanson. China, 

 Philippine Islands, Bengal, Malabar, and in the Archipe- 

 lago. Favanne. Madagascar. Humphreys. 

 This beautiful species is generally about six or eight lines long, 

 with the breadth sometimes exceeding the length, and it 

 varies considerably in the relative number of its variegated 

 and crimson rows of beads : Adanson says, ' Quand elle sort 

 de la mer elle est ordinairement dun cendre noir;' and 

 Chemnitz's fig. 1678, which Gmelin has quoted for a Va- 

 riety, looks as this shell probably would when coated with a 

 thin bkckish epidermis. 



