TROCHUS. 807 



Turbo siilcatus. Gmelin, p. 3592. 

 Spenglers Naturf. ix. p. 155. t. 3. f. 5 and 6. 



Inhabits Cook's Straights in New Zealand. Chemnitz. Friend- 

 ly Islands. Martyii. 



Shell three or four inches long, and about equally broad^ of a 

 greyish brown colour, and the inside pearly ; it has a singu- 

 lar horny operculum, which Chemnitz has tigured at t. \Q3. 

 f. a and b. 



IRIS. 111. Shell sub-conical, slightly ventricose 

 and acuminated, smooth, and beautifidly iri- 

 descent under the epidermis; aperture ob- 

 lique. 

 Trochus Iris. Gmelin, p. 3580. Schreibers Conch, i. p. 



Trochus Iridis. Chemnitz, v. p. 27. t. l6l. f. 15'22 and 



1523. 

 Trochus Opalus. Martyn Univ. Conch, i. t. 24. 

 Trochus, No. 8. Schroeter Einl. \. p. 681. 

 Elenchus Iris. Humphreys Call. Cat. p. 25. No. 434. 

 Le Grand Point d'Hongrie. Favanne, ii. p. 132. t. 79. 



f. G. 

 JValch Natwf. iv. p. 42. t. 1. f. 5 and 6. Zorn Naturf. 



vii. p. 16 1. t. 2. f. C I and C 2. 

 Variety. Shell smaller, and whitish, with reddish stripes. 

 Trochus rostratus. Gmelin, p. 3580. ? Schreibers Conch. 



i. p. 263. 

 Trochus pyramidalis, &,c. Chemnitz, v. p. 28. t. l6l. f. 



1624 and 1^25.? 

 Trochus, No. 9. Schroeter Einl. i. p. 682. i 

 Inhabits the coasts of New Zealand. Chemnitz, 8fc. 

 Shell about an inch and a halt long, and not much more than 

 an inch broad, of a pale purplish or chocolate-colour, with 

 darker longitudinal zic-zac stripes; when deprived of the 

 outer coat the whole surface, as well as the inside, is beau- 

 tifully pearly and iridescent, and a few rather remote trans- 

 verse grooves then become more apparent. T. rostratus of 

 Gmelin is most probably only a variety, but I am unac- 

 quainted with the shell, and the figures do not answer well 

 to the description. 



ELEGANs. 112. Shell sub-conical, elongated, acu- 

 minated, smooth, with a few slight remote 

 transverse grooves, and iridescent under the 

 epidermis ; aperture oblique. 

 q2 



