TIARA. 31 



50. Tiara (Acrostoma) hiigeli (Philippi}. 



Tiara (Acrostoma) hilgeli (Philippi), Abbild. N. Conch, i, p. 61, 



Melanin, pi. 2, fig. 8. 

 Melanin siphonata, Reeve, Conch. Icon. pi. 20, sp. 143 ; H. & T., 



C. I. pi. 71, tigs. 5, 6 ; Nevill, Hand List, pt. 2, p. 270. 



Original description : Testa oblongo-conica, obscure f usca ; 

 anfractibus planiusculis, transversim striatis ; ultimo ventricoso, 

 basi grosse sulcato ; apertura ovata, anfractus 3 antecedentes 

 simul sumptos aequante, basi manifesto effusa ; columella arcuata. 



Ait. 33, diam. 19'5 mm. 



Hob. Kbasi Hills ; Mysore ; Upper Canvery River (Stanford). 



Var. compacta, Nevill, Hand List, pt. 2, p. 270. 



" Easily distinguished by its short, stout form, relatively con- 

 tracted aperture, less tumidly swollen, but more subangulate last 

 whorl, and closer spiral sculpture ; the spire is more truncate, the 

 coloration darker." 



Alt. 25-5, diam. 1375 mm. 



Hob. Wynaad [type var.] and Cochin Hills (Beddome); Canvery 

 River (Jerdon). 



51 . Tiara (Acrostoma) assamenis, Nevill. 



Tiara (Acrostoma} assamensis, Nevill, Hand List, pt. 2, p. 271; 

 Hanley, Conch. Misc. pi. 5, fig. 43, as " M. hiigeli, var. of Philippi, 

 from Khasya." 



Original description : Remarkably close to Mel. Jiiigeli, from 

 which it can be distinguished by its less solid substance, its much 

 more convexly rounded whorls, the last not being (more or less) 

 subangulate as in its ally ; of a plain, uniform, dark colouration ; 

 of similar minute striation. but wanting the spiral sulcations at 

 base of last whorl ; characters of the columellar margin and 

 aperture generally much as in typical M. Imgeli, strongly decollate, 

 three whorls only remaining. 



Alt. 35, diam. 18*5 mm. 



Hob. North Cachar (Godwin-Austen} ; " Delaima " ? (Nevill}. 



52. Tiara (? Acrostoma) prsemordica (Tryori). 



Tiara (? Acrostoma} pramordica (Try on), Amer. J. Conch, ii, pt. 2, 

 1866, p. Ill, pi. 10, fig. 3 ; Brot, in Conch.-Cab. 1875, p. 108, pi. 13, 

 figs. 8, 8 a ; H. & T., C. I. pi. 153, fig. 2. 



Original description : Shell ovately conical, robust, covered with 

 regular, close, curved growth lines, and with rounded revolving 

 ribs, of which seven are on the body-whorl ; spire conical elevated, 

 (? eroded), suture deeply impressed; whorls convex, surface 



