36 



Varieties however, occur, which connect the two species rather 

 closely. Fig. 88 is a very fine variety from the collection of Mr, 

 Cuming, with an orange aperture. Fig. 93 is one belonging to 

 Mr. Norris, which has not the crenulations in the aperutre. 



East Indies. 



51. S. melanostoma. (pi. ix. f. 89, 90, 94.) Sw. S. adustus, 

 Nonnull. 



T. ovali,sub elongata, angulata, rugosa; spira mediocri; anfrac- 

 tibus tuberculatis ; apertura angusta; labio interno expanso ; labio 

 externo crasso, sub-inflexo, postice, in digitam elongato elevato. 



A species resembling the two former in shape, having the external 

 rugosity and internal crenulation of S. Lamarckii. The inner lip 

 and the margin of the outer lip are of a deep black, except in the 

 varieties, fig. 89 and 94, in which the anterior part of the inner lip 

 and a wider portion of the outer lip are of an orange colour. The 

 variety, f. 89, is remarkable for the shortness of the posterior digi- 

 tated lobe. East Indies. 



52. S. pacificus. (pi. ix. f. 95.) Sw. Exotic Conchology. 



T. sub-trigona, lsevi, spiraliter sulcata; spira elongata; anfrac- 

 tibus angulatis, plicato-tuberculatis ; apertura interne sulcata, 

 sulcis fulvo-inter-lineatis ; labio interno calloso, expanso ; labio 

 externo expanso, ad anfractus tres elevato; postice lato, uni-lobato. 



The shell is pinkish white, ornamented by zigzag lines and 

 patches of light brown, the outer lip is broadly expanded, and so 

 elevated as to reach three whorls of the spire ; the inside of the 

 aperture is strongly ribbed, of an orange colour between the ribs. 



Pacific Ocean. 



53. S, Australis. (pi. ix. f. 96, 97.) nobis. 



T. ovali, rugosa, spiraliter costata ; spira elongata ; anfractibus 

 angulatis, plicato-tuberculatis, ultimo costis tuberculatis duabus ; 

 apertura lata; labio interno antice gibboso; labio interno ad anfrac- 

 tus duos elevato, valide expanso, uni-lobato, intus sulcato, postice 

 costis duabus magnis, margine crasso, sub-inflexo, intus crenulato : 

 canali recurvo. 



A white shell, tinged with purple, banded at the margin with 

 brown, with deep reddish brown on the margins of the inner and 

 outer lips ; the shape resembles that of S. pacificus, but it is more 

 square, and thicker; the inner and outer lips are both gibbous in 

 front, the outer lip is sulcated within, having two large distinct 

 ribs near the suture. Australia. 



54. S. galeatus. (pi. x. f. 114.) Sw. Phil. Mag. (1823.) S. 

 crenatus. Sowerby, Tank. Cat. (1825 ) S. Galea, Wood's Cat. 



T. sub-conica, spiraliter costata ; spira brevissima ; apertura lata ; 

 labio interno tenui, expanso ; labio externo expanso, crasso, cre- 

 nato, postice lato. 



This shell is remarkable for the large rounded ribs and for the 

 conical form of the young specimen. When in good preservation, 



