1*1 



minutelv margined above and In-low, with two spiral row- of tuh.-r- 

 de-, connected in each row l>y a >piral thread, and a much -mailer 

 row of granule- nrxt In-low tin- suture. Length, 1") mill. 



II. / di , :;.MMi4D fins. 



T. c!i/imh't'f/n.. Dull. (unfiirured |, is referred here by .Iouss<-aum<-. 

 and T. nhi'iiithi*, Dall. nmfiiriiivd , is .-aid to l>c a variety. 



T. BEBES, Wafeon, IM. :I7. li.ir. 2. 



Solid, translucent white, whorls 12, with three spiral row- of 

 ft ron;r tubercles, separated hy spiral squared channels, margin of 

 base defined hy a thread. Length, 6 mill. 



Trixtan da Cunha Islands, So. Atlantic 0. 



T. INKl.A TA, Watscm. PI. 0*7, fig. 3. 



Solid, opiuiuo, glossy, white ; whorls 13, the normal ones slightly 

 convex, with two spiral rows of tubercles, separated by a narrow 

 triangular furrow, below them is a wider furrow, extending to the 

 suture, above tin- suture is defined by a narrow marginal line, which 

 is undulated rather than tuberculated. Length, 5 mill. 



West Indies, 390-640 fms. 



T. ASI-KRA, Jeffreys. PL 38, fig. 5. 



Rather solid, nearly opaque and glossy, pale yellowish, with a 

 faint tinge of brown, apical whorls dark brown; whorls 21-22, 

 with two spiral series of strong tubercles and a subsutural series of 

 minute granules, base with two spiral lines, and defined by a strong 

 peripheral ridge, suture slight. Length, 15 mill. 



Bay of Biscay ; Stiacca, Sicily ; Gulf of M>.c ><<>. 



More slender, with stronger tubercles and more abrupt base than 

 T. perversa. 



T. Asi-i-:i:i:iMrs, Hinds. PL 38, fig. 6. 



Whorls 24-26, angulated in the middle, with two spiral series of 

 tuhercles. trranuhirlv carinate near the suture. Length, 13'.") mill. 



New (i" 

 DiMin-ruishrd by its very narrow form. 



T. GEMXULATl 8, Ads. and Reeve. PL 38, fig. 7. 



1'yraniidal, with abruptly plain base, pellucid white; whorls 12- 

 1"), with three distant series of granules, the central one narrow, 

 almost obsolete, causing the whorls to he concave in the middle, 

 suture defined by a marginal line. Lenirth, 7 mill. 



( 'liiioi Sea. 



