TRI 



T. IN8IONI8, Middendorll 1 . PI. 8, li.ir. - y 8 ; ? PI. 1 



I'ml'ilieu^ small, shell thick. -<>mewhat - Inlio^c. with undu- 

 lating crenulated spiral ribs. 1 w> of them ii-ually mere prominent . 

 an-nlatin-- the body-whorl, aperture margin often erenu! 

 epidermis light yellowish brown. Length, Is mill. 



/;/-/ rait*. 



r l'lu second figure is referred 1<> thi- in-ned 



Y.'irietv hy Aurivillius ; it :ippe:irs to me more like a v;i 

 of T. 



Unfigared Specif*. 



T. MKJIIANS, Dull. Near Havana, C"lm. 



ru'inarkahh- :is the lirsi species of the genus found in tropical 

 waters. 

 T. TUSILLA, Gould. (= Fos-arns). 



T. PKKAMABTLIS, D.lll. Sitkd. 



'[\ iM'LATA, Friele. North Sea. 



T. ELLIPSOIDEA, Gould. Hong Kong Bay. 



r \\ d'OEBlGNYANUM, Petit. (= Coralliophila, Manual, ii, 206). 

 T. TBICARINATA. and T. GRACILENTA, Brazier. N. Australia. 



T. (ALOHA) GOULDII, A. Ad. Panama. 



Genus SEPARATIST A, Gray, 1847. 



S.vBLAINVILLEANA, Petit. PI. 8, fig. 69. 



Widely unibilicated, membranaceous, pellucid, under a roseate 

 corneous epidermis; whorls 6, rapidly increasing, broadly tabu- 

 late, periphery with two spiral distant ribs on the spire, and 

 three on the body-whorl; aperture transverse, a little channeled 

 below. Diam. 10 mill. 



? Marianne Is. 

 S. CHEMNITZ u, A. Ad. PI. 8, fig. 70. 



Spire more depressed than the preceding species, with fewer 

 whorls, which are convex, the three peripheral keels closer and 

 ii"t so prominent as in the last species. Diam. 18 mill. 



Philip} 



S. GIIAYI, A. Ad. 



Spin' depressed; whorls with live keels; aperture trans\vr-e!\- 

 oblong ; inner lip retlexed, anteriorly rounded. Uiilii^tired. 



Cape of Good 1! 



