TIAKA. 11 



liamje. S. & E. Asia; Malay Archipelago; islands of the 

 Pacific. 



Shell subulate, elongated; spire manj'-whorled, acute ; whorls 

 smooth, not spinose : aperture ovate, acuniiiiate, posteriorly entire, 

 rounded in front; inner lip thin, not callous; outer lip simple, 

 acute, margin entire. (//. 4' ^- Adams.) 



20. Tiara (Radina) hastula {Lea). 



Tiara {Radina) hastula (Lea), P. Z. S. 1850, p. 189 ; Conch.-Ciib. ii. 



pi. 10, figs. 3, ;3 6 ; fide Brot. 

 Melania costata, auct. [not of Quoy]. 

 Melaniajlammulata, Buscli [not o"f lieeve]. 

 Melania picta, live, [not of Hiuds]. 

 Melania aada, live, [not of Lea]. 

 Melania urroensis, Eve., Nevill, Hand List, pt. 2, p. 228. 



Original description : — Testa striata, nonnunquani plicata, elon- 

 gata subulata, diapliana, teniii, fusca, striis transversis crebris 

 costulas decussantibus ; spira acuminata; suturis linearibus ; an- 

 fractibus plano-convexis'; apertura parvula, ovata, intus vel fusca 

 vel albida ; columella incurva tortaque. 



Alt. 83, diam. 20-25 mm. 



JIah. Philippines ; India. 



Var. suhacutissima, Xevill, torn. cit. 



" Spiral striation on base of last whorl distinct : 



upper whorls obscurely dotted and flamed with brown and 

 peculiarly alternate '' 



Alt. 55, diam. 16 mm. 



Hab. Andamans {Roepstorff). 



Subvar. suhcrenulata, Nevill, tom. cit. p. 229. 

 Alt. 51, diam. 16-75 mm. 

 Hah. Andamans {Roepstorff). 



21. Tiara (Radina) crenulata {Deshayes). 



Tiara (Radina) crenulata (Ueshavesi, Lamarck, IIi:st. Anim. s. Vert 



ed. 2, viii, 1838, p. 434. 

 BuUmtis torulosus, Bnig. Encycl. Meth., Vers, i, p. 352 ? 

 Helix- crenata, IJillwyn, Cat. "ii, p. 950, no. 144 ; Nevill' Hand List, 



pt. 2, p. 225. 



Original description :— Testa elongato-turrita, apice truncata albo- 

 fuscescente obsolete sulcata ; ant'ractibus latis subplanis ad suturam 

 depressis, marginatis ; margiue lato, excavato ; apertura magna, 

 ovah, ad basim dilatata ; columella coutorta, crassa. 



Alt. 64, diam. 21 mm. 



Hah. Philippines. 



