PART II. SCOLYMIN-E. EBURNIN^. 305 



Cancellaria Lam. Shell turbinate, scabrous, generally 

 reticulated ; body-whorl ventricose ; spire and aper- 

 ture nearly equal ; base obtuse ; pillar with distinct 

 basal plaits ; aperture rather effuse ; the canal almost 

 obsolete. 

 C. reticulata. En. Meth. 375. f. 3. lobata Sw. {Jig. 72. /. ) 



Rhinodomus Sw. No internal groove ; shell clavate ; 

 the spire longer than, or equal with, the aperture ; the 

 whorls with ridges or longitudinal varices, and ren- 

 dered hispid by transverse grooves ; inner lip want- 

 ing ; pillar with a terminal fold ; aperture striated _; 

 outer lip with a basal sinus.* 



R. senticosus. Chem. tab. 193. f. 1864—1866. 



PoLYTROPA Sw. f Bucciniform ; but the base narrowed, 

 and ending in a straight and contracted, but rather 

 short, channel ; spire longer or as long as the aper- 

 ture ; exterior foUiculated or tuberculated ; inner lip 

 flattened, as in Purpura; basal notch small, oblique ; 

 no internal channel. 



crispata. En. Meth. 41 9 f. 2. imbricata. Mart. 1 22. f. 1 124. 



Chem. 187. f. 1802. ? rugosa. Chem. f. 1473-4. 



lapilla. Pennant, pi. 72. f.89. 



SuB-FAM. 3. EBURNIN^. 



Shell generally grooved round the suture ; body- whorl 

 ventricose ; spire rather longer than the aperture ; the 

 base obtuse, and almost entire ; inner lip much thick- 

 ened ; outer lip sinuated. 



Cyllene Gray. Small; shape of Harpa and Harpula; 

 shell longitudinally ribbed^ and sub-coronated with 



* Analogous to Nassa; but the inner lip is not developed, and there is not 

 a superior or internal canal ; it likewise represents Leiodoynus by its animal, 

 Scalaria by its varices, and Terebra by it spire. There are several species 

 with shorter spires than senticosus. 



t This is an obvious representation of Pwr;3?/rrt and Pyrula in tliis circle, 

 and is connected to Plicatella by such aberrant species as have two or three 

 obsolete tubercles at the base of the inner lip, and a row of others, more 

 distinct, on the opposite side ; but even in these the pillar is always de- 

 pressed, and the channel short. These species arechiefly from t lie Northern 

 and Southern Oceans. They are at once distinguished from the I ur puree 

 by having no internal channel at the top of the rperture. 

 X 



