20. T. BIFRONS Hinds; 1843. a^*^^^-y|( 



Hinds, Proc. Zool. Soc, 1843, p. 155; — . Sowerby, Thes. 

 Conch., I. \). 174, pi. 43, fig. 57 ; — , Tiyon, Man. Conch., 

 vii, p. 19, pi. 4, fig. 71 ; — , Pilsbry, Cat. Jap. M. M., p. 11. 



^. 48 mm. %, 11.6 mm. 



,, 44.5 mm. ,, 10 mm. 



(MM) +B^^ ; mm ; mm^l-); ^fi^ (Steams). ^ 



30. T. CONCINNA Deshayes, 1857. 



Deshayes, Jour. Conch., 1857, p. 99, pi. 3, fig. 10 ; — , 

 Tryon, Man. Conch, vii, p. 15, pi. 12, figs. 37, 32. 



^, 40 mm. 



^%, a*. 



T. dilhoyni Desh. \\1m.t■^i^^m'- L"^, '-) - V S k^^ T. slrigil/ata Linn. Z^iMW') 2 5i- 

 li|fen''J, ^ - ^ Jc (t Buccinum concinnuvi Dillwyn "C-S^ 4 Ofc i^-^ti'^TiCfi^t 7. divisa t.^% 



Hection Triplostephanus Dall, 3908. ^ 'J/} tlM (^M) 

 Myurella IJinds (1 fC, l^^j^U 2'- triscriata Gray gjl "^ ^ ^ ^' t f^ f) • 

 31. T. TRISERIATA Gray, 1834. if-tjfj't (^^) 



jT. triscriata, Gray, Proc. Zool. Soc. London, 1834, p. G2 ; 

 (Hinds; Reeve CD^W> ^^-^ Dunker, Index, p. 72, pi. 5, 



[18] 



