STROM BUS exustus, 

 Burnt, or Purple-mouthed S trombus, — ( Upper figure.) 



Generic Character. — See PI. 10. 



Specific Character. 

 S. testa nodosa; labio interiore albo, Icevi ; lahii exterioris inflcxiy 



supra sinuati, intus purpureo-atri, striati ; lobo basalt edentulo. 

 Shell nodulous ; inner lip smooth, whitish ; outer lip inflected, above 



sinuated, within striated, blackish purple ; basal lobe not 



toothed. 

 Young. S. papilio. Chem. x. t. 158./. 1510, 11. Dilhv. 661. 120. 11. 

 Adult. Strombus exustus. Humphreys in Mus. Cat. p. 38. n. 1\A. 

 S. lentiginosus. Martini, iii. t. 80. f. 825, 826. Gjuelin. 3510. 



(var. /3.J Dillwyn. 660. 

 Seba, t. 52. f. 17. 18. Knorr. 3. t. 26./. 2. 3? 



OPECiMENs now before me prove that the S. papilio of 

 Chemnitz is a young shell of S. exustus, a species named by 

 Mr. Humphreys in the Calonne Catalogue, and described 

 in his own manuscripts. In a young state, the aperture 

 is smooth and nearly white, but when full grown, the outer 

 lip is strongly striated, and the aperture reddish purple, 

 dark red, or reddish chesnut : the outer lip is but slightly 

 sinviated above, and the basal lobe never toothed, as in the 

 next species. Inhabits the island of Haynam, in the East 

 Indies, and is very rare. 



STROMBUS lentiginosus, 

 Tuberculuted Strombus, — (Lozver figure.) 



S. testd nodosd ; lahii exterioris supra rotundati ad spiram annexif 



profunde hilobati, margine crasso infiexo, sub-nodoso ; lobo basalt 



dentato ; aperturd Icevi. 

 Shell nodulous, outer lip above rounded, attached to the spire, 



deeply bilobated, margin thick, iuflexed, slightly nodulous; 



basal lobe toothed ; aperture smooth. 

 Young. Seba, t. 62. /. 37. 40. optime. Martini, 3. t. 89./ 871. 



^. 91./ 891. 892? Lister, 893. 12? 

 Adult. S. lentiginosus. Ginelin, 3510. Dillwi/n. 660. Martini, 3. 



t. 81./ 827, 828. 

 Seba, 62./. 11. 30. (optime. J Lister, 861. 18. Gualt. 32./ A. 



This common shell requires little description, and is only 

 introduced to contrast more fully the difierence between 

 these two species : the upper part of the lip has two deep 

 notches, which form three prominent lobes ; the basal 

 lobe is toothed, similar to the Pterocerce : the aperture (in 

 those shells from the East Indies) is light pink inside. A 

 large and fine variety comes from the Mauritia islands, 

 having the mouth within pale golden yellow. 



PI. 131. 



