OF MOLLUSCA. 23 



Fam. V. TURKITIDiE. 



Head truncated. Tentacula moderate. Mantle enclosed. Siphon 

 produced, recurved. Foot simple. Operculum none. 



Shell fusiform ; spire conical ; pillar with large ohlique folds in 

 front ; canal distant, rather produced, bent up at the tip. 



1. Turris. 

 Shell fusiform ; spire conical ; whorls compressed ; aperture 

 linear ; pillar lip obliquely folded ; outer lip striated within. 



1. T. corrugata, Quoy, t. 28. f . 2 ; t. 106. f. 7. 



2. T. caffra, t. 81 a. f. 3. 



3. T. stigmataria, t. 28. f . 8 ; t. 106. f. 3. 



4. T. paupercula, t. 1 28. f. 7. 



The penis of Turns caffra is elongate, bent up. The siphon mo- 

 derate, simple at the base. Proboscis not produced. Lingual mem- 

 brane elongate. Teeth 1 • 1 • 1 ; central transverse, rather angularly 

 produced in the centre, with nine teeth on the front edge, the lateral 

 largest; lateral teeth elongate, subulate, curved (semicircularly) . 



Fam. VI. CANCELLARIAD^. 



Tentacles conical, subulate, close together at the base. Eyes ex- 

 ternal, basal. Proboscis 1 Teeth ? Foot produced in 



front. Mantle enclosed. Siphon none? "not produced." (D'Orb.) 



Shell ovate ; spire short ; whorls convex, striated or costated ; 

 mouth ovate, angular in front, with an indistinct siphonal notch ; 

 pillar lip with oblique plaits. Operculum ? 



1. Cancellaria. 

 Character of family. 



1. C. tuberculata, t. 89. f. 5. 



2. C. trigonostoma, t. 91. f. 5 (not good; perhaps altered from 



former). 



3. C. textilis, Adams, Gen. Moll. t. 29. f. 4. 



2. 1 Admete. 



Foot large, longer than the shell, broad, truncated, sinuated in 

 front, lanceolate behind. Head small, rounded ; mouth simple, with- 

 out any proboscis or lingual membrane. Tentacles elongate, fili- 

 form. Eyes on minute tubercles on the outer side cf the base. 

 Operculum none. 



Shell ovate, diaphanous, brittle ; aperture ovate, scarcely nicked 

 in front ; pillar arched, obliquely truncated ; lip thin, acute. 



1. Admete crispa, t. 125. f. 1. 



