MANUAL OF THE BIOLLUSCA. 



Shell fusiform, spirally striated ; aperture mth. a rather long 

 canal ; columella plicated as in Fasciolaria ; operculum like 

 that of Ghrysodomus. Lingual dentition, resembles that of the 

 Purpuridca, 1*1*1. Ehachidian tooth, deeply arched, with 

 three denticles ; lateral teeth versatile, elongated, simple, hook- 

 shaped, base swollen. 



BucciN'OPSis, Jeffreys, 1859. 



Etymology, having the aspect of Buccinum. 



Synonym, Liomesus, Stimpson, 1865. 



Type, Buccinum Dalei, J. Sowerby, Britain. 



Shell oval, spirally striated ; epidermis filmy ; spire short, 

 obtuse ; outer lip smooth within ; canal short and open ; oper- 

 culum triangular; nucleus placed on the inner base of the 

 aperture. 



The lingual dentition makes an approach to Mangelia, and 

 consists of a single plain and slightly curved tooth on each side 

 of a thin non-denticulated plate. 



The egg cases of Buccinopsis are separate. 



Distribution, 3 species. German Ocean, North Atlantic, Spitz- 

 bergen, Behring's Straits. 



Fossil. B. Dalei occurs in the Eed, Antwerp, and Coralline 

 Crags. England, Belgium. 



Cheletropis is the fry of species belonging to the Muricidce. 

 Adamsia, Dunker, resembles a sculptured Cominella without 

 the sutural construction of the whorls. 2 species. Australia. 



Family III. — Buccixidje.* 



The enumerated genera are : — 



Bucci^sruM, PsEUDOLivA, BuLLiA, Ebtjexa, Phos, Nassa 

 {Cyllene, Nortliia, Cydonassa), Colijmbella, TRinsrCAELA, and 

 Terebea [Myurella), Subtjla {Euryta). 



Tkukcaria, a. Adams and Eeeve, 1848. 



Synonym, Buccinopsis, Deshayes. 



Type, T. filosa (Buccinum). Adams and Eeeve. China. 

 Shell oval, oblong ; spire elongated ; apex acute, often chan- 

 nelled at the suture ; aperture oblong, dilated in front, angu- 

 lated, sometimes with a small canal behind ; outer lip simple or 

 bordered; columella concave, abruptly truncated, and shorter 

 than the right lip. 



* See p. 218, &c. 

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