TROCHUS. 767 



Inhabits the coasts of Mozambique and Zanguebar. Favanne. 



Shell about an inch and a quarter, or an inch and a half long, 

 with five rows of irregular tubercles on each whirl, of which 

 the largest are those at the base immediately above the su- 

 tures ; the colour is generally greenish white mottled with 

 red, and sometimes with olive ; the base is granulated, and 

 white with reddish rays. 



REGIUS. 16. Shell conical, and the whirls concave, 

 with transverse rows of granules, which are 

 larger both above and below the sutures ; 

 umbilicus funnel-shaped. 



Trochus regius. Chemnitz, v. p. 94. 1. 170. f. 1637. Gnie- 



lin, p. 3572. Schreibers Conch, i. p. 253. 

 Trochus, No. 58. Schroeter Einl. i. p. 703. 



Inhabits 



Shell about an inch and a half long, and the breadth in Chem- 

 nitz's figure rather exceeds the length ; the colour is white 

 clouded with rose-colour, and the base flat, with concentrical 

 rows of granulated striae. 



VERRUCOSUS. 17. Shell conical, with the whirls 

 nodulous at the sutures ; umbilicus funnel- 

 shaped, and immaculate. 



Trochus verrucosus. Gmelin, p. 3572. Schreibers Conch. 

 i. p. 253. 



Trochus, No. 59- Schroeter Einl. i. p. 703. 



Conus acutangulus. Chemnitz, v. p. 95. t. 170. f. 1638. 

 Inhabits the East Indian Seas. Chemnitz. 

 Chemnitz has described this species to be about sixteen lines 



long, and twelve broad, with purplish spots and stripes on a 



white ground : his having called it a Conus appears to have 



been wholly accidental. 



CYLINDRACEUS. 18. Shell sub-conical, with the 

 whirls convex and transversely striated, and 

 the summit obtuse; aperture round, and the 

 umbilicus crenulated. 



Trochus cylindraceus. Chemnitz, v. p. 95. t. 170. f. 1639. 

 Trochus cylindricus. Gmelin, p. 3572. Schreibers Conch. 



i. p. 254. 

 Trochus, No. 60. Schroeter Einl. i. p. 703. 

 Inhabits 



