134 



THERSITES. 



T. oconnellensis Cox, vi, 158. T. 



albofilata Mouss. T. 



T. arthuriana Cox, vi, 159. T. 



T. rockhamptonensis Cox., vi, T. 



planibasis Cox, ms. [159. 



v. moresbyi Ang., vi, 160. T. 

 v. pallida Hedl. & Mss. viii, 281. 



T. informis Mouss., viii, 282. T. 



T. palmensis Braz., vi, 160. T. 



v. meridionalis Braz., vi, 161. T. 



T. bellendenkerensis Braz., vi, T. 



[161. 



T. parsoni Cox, vi, 162. T. 



T. appendiculata Pfr., vi, 163. T. 



T. seminigra Morel., vi, 162. T. 



lessoni Pfr., olim., et auct. T. 



? =incei var. T. 



T. incei Pfr., vi, 166. T. 



v. aureedensis Braz., viii, 282. T. 



v. bayensis Braz., vi, 166 ; viii, T. 



[282. T. 



T. thatcheri Cox, vi, 164. T. 



T. hilli Brazier, vi, 164. T. 



mazee Braz., vi, 165. 

 hanni Braz., vi, 166. 

 prsetermissi Cox, vi, 167. 

 mulgravensis Braz., vi, 168. 



mulgravei Braz. 

 curtisiana Pfr., vi, 168. 



WaBraz., vi, 169. 

 johnstonei Braz., vi, 170. 

 creedi Cox, vi, 170. 

 wesselensis Cox, vi, 170. 

 sardalabiata Cox, vi, 171. 



stephensoniana Braz. 

 whartoni Cox, vi, 171. 

 mourilyana Braz., vi, 172. 

 yulei Forbes, vi, 172. 

 challisi Cox, vi, 173. 

 nicomede Braz., vi, 173. 

 beddomse Braz., vi, 174. 

 bebias Braz., vi, 175. 

 cookensis Braz., vi, 175. 

 torasoni Braz., vi, 175. 

 broadbenti Braz., vi, 176. 

 hixoni Braz., vi, 177. 





Subgenus XANTHOMELON v. Martens, 1860. 



Xanthomelon MTS., in Alb., Die Hel., p. 174, type H.pomum; 

 Mai. Blatter xvi, p. 77, 1869. PILS., Man. Conch., vi,p. 178. For 

 anatomy, see SEMPER, Reisen, p. 160, pi. 14, and HEDLEY, P. R. S. 

 Q., vi, p. 250, pi. 14, and p. 121, pi. 8. 



Shell large, solid and globular, the spire small, body-whorl large, 

 globose, descending to the aperture, which is semioval and some- 

 what oblique. Peristome narrowly expanded, thickened within ; 

 columellar lip broad, flattened, partly or wholly covering the axial 

 perforation; surface somewhat roughened, covered with a yellow 

 cuticle. Type T. pomum, pi. 27, fig. 6. 



Jaw stout, arched, with 8 (perinflata) to a dozen (pachystyla) stout 

 ribs, obsolete toward the ends (pi. 32, fig. 47, pachystyla). 



Radula as in SpJuerovpira etc. (pi. 32, fig. 46, pachystyla). 



Genital system having the penis rather short and stout, twisted at 

 its apex, where the retractor-muscle and vas deferens are apparently 



