MONOGRAPH OF THE GENUS 



NASSARIA, Lmk 



Hindsia, Adams. 



Char. Gfii. Testa fusiformis, acuminata, longitudinaliter costa- 

 ta et spiraliter sulcata ; apertura subrotundfi, in canalem elonga- 

 tuni dorso elevatum terminante ; labio interno tenui, integro, 

 irregulariter plicato ; labio externo extus varicoso, interne sulcata 

 Operculum corneum, ovate unguiforme, margiue integro. 



Mr. Adams, in describing this genus under the name of 

 Hindsia, has the following observations : — " This genus partakes 

 of the characters of several recognized forms. Its animal, how- 

 ever, differs from that of Triton in the approximated tentacles, 

 with the eyes near their end, and the anteriorly produced foot ; 

 from that of Nassa in the tail not being bifurcated ; and from 

 Phos in the absence of the long, single caudal filament. In its 

 shell it may be known from P/tos by its recurved canal ; from 

 Nassa by its circumscribed inner lip and elongated canal ; and 

 from Triton from its want of regular varices." 



Thes. Conch. PL CCXX. 



1. acuminata (f. 10), Reeve (Triton), Conch. Icon. Triton,/;/. 

 14. f. 54. — N. testa pyramidali, acuminata, alba, in medium an- 

 fractuum fulvo interrupting fasciata; anl'ractibus rotundis, costis 

 longitudinalibus validis distantibus et liris spiralibus ad costas 

 elevatis ornatis ; varice post labium externum crasso, lato ; canali 

 elongato, recurvo. — Of a pyramidal form, with strong, sulcateel 

 ribs. China. 



2. bitubeecularis (f. 5), A. Adams, Pro. Zool. Soc. 1853. — 

 N. testa acuminata, rufo-fusca, albo cincta ; spira acuta; anfrac- 

 tibus subangulatis; sutura depressa ; costis validis, numerosis, 



