431 



nalis, may be an undeveloped specimen of that species, or of S. 

 coccineus. Fig. 24 may probably be referred to this species. 



SPECIES NOT IDENTIFIED. 



35. S. AMBIGUUS, Chenu, Illust. couch., pi. xxviii. f. 1. 



"T. insequivalvi, superiore fusca; inferiore crocea radiato-co3- 

 tata et spinosa." 



Very probably a variety of S. zonalis, but possibly distinct. 

 America. 



36. S. AsiATicus, Chenu, Illust. conch, pi. xxiv. f. I, 2. 



"T. insequivalvi, cinereo vel fusca violascenti, longitudinaliter 

 costata et spinosa, spinis squamosis truncatis.'" 



Tliis I suppose to be new, but both the specimens figured are 

 covered with extraneous matter. 



37. S. EXCAVATUS, Chenu, lUust. conch, pi. xxix. f. 3. 



" T. insequivalvi, utrinque violaceo-mutica ; costis 9 longitudi- 

 nalibus, et costis 6-7 ad interstitia." 



Possibly a worn and undeveloped specimen of S. Cimiingii. 



38. S. GRACILIS, Chenu, Illust. conch, p. xxvi. f. 1. 



"T. alba, multicostata, et tenuiter spinosa, costis intermediis 

 minoribus spinosisque ; intiis alba, ad limbum rosea." 



A small wiiite shell, rather resembling 8. canclidus, Lamarck. 



39. S. LuiA, Chenu, lUust. conch, p. 6. pi. xxiv. f. 7. 



" T. violacea albido-maculosa, fusco zonata ; multicostata et spi- 

 nosa; costis minimis approximatis, spinis tenuissimis." 



" Cette espece est fort voisin du -1.9. radius, mais elle en diifere 

 par la regularite de ces cotes toutes egales, par la tenuite des epines, 

 et Tuniformite de sa coloration." 



40. S. ROSTRATUS, Chemi, Illust. conch, pi. xxvi. f. 4. 



" T. insequivalvi, albida, violaceo-maculata, longitudinaliter mi- 

 nime striata; costis 10-majoribus; valva inferiori ventricosa ; aresl 

 rardinali maxima, curvata ; intus albida." 



