516 VOLUTA. 



Martini, ii. p. 179- t. 49. f. 532 and 533. Em. Method. 

 t. 363. f. 5. 



Inhabits the coasts of Mindanao, and the Molucca Islands. 

 Favanne. 



This species varies in its size and markings almost as much as 

 V. Oliva, from which it may be readily distinguished by its 

 more oval form, and by the thick irregular ribs at the base of 

 the pillar ; the throat is generally white, and the pillar most- 

 ly streaked with reddish brown or orange. The vitreous sub- 

 stance which in most of the Olives is spread more or less over 

 the spire and the pillar-lip, often forms a projecting appendage 

 above the upper angle of the aperture, and it appears from 

 Favanne's figures that this appendage in the present species is 

 sometimes more elevated than the summit of the spire. 



incrassata. 35. Shell ovate gibbous ; spire ra- 

 ther depressed, with the whirls thickened at 

 the base ; outer lip somewhat angular, and 

 very thick. 



Voluta incrassata. Solanders MSS. Portland Cat. p. 



13. lot 264. 

 Voluta Oliva, Var. a-. Gmelin, p. 3440. 

 Voluta, No. 17. Schroeter Einl. i. p. 251. 

 Oliva angulata. Lamarck Ann. du Mm. xvi. p. 310. 

 Le Peau de Tigre. Favanne, ii. p. 757. 

 Martini, ii. p. 164. t. 47. f. 499 and 500. Em. Method. 

 t. 363. f. 6. 



Inhabits the Moluccas. Favanne. Brazil. Humphreys. 



Shell two inches and a half long, and nearly one and a half 

 broad. Yellowish white, variously mottled with blue and 

 brown, and the throat mostly if not always pale blue. Knorr, 

 ii. t. 12. f. 1 and 2, may probably be a variety of this spe- 

 cies, but the angular projection towards the upper end of the 

 outer lip is wanting, and the colour is darker than usual. 



pinguis. 36. Shell somewhat Cone-shaped ; spire 

 short and depressed, with a vitreous mass con- 

 cealing the whirls, and forming a callosity 

 over the pillar-lip ; belt double. 



Voluta pinguis. Solander's MSS. Portland Catalogue, 



p. 174. lot 3740. 

 Oliva Brasiliensis. Chemnitz, x. t. 147. f. 1367 and 1368. 

 Oliva Brasiliana. Lamarck Ann. du Mus. xvi. p. 322. 

 Inhabits the coasts of Brazil. Humphreys. 



