CANCELLARIA. 77 



narrowly distantly longitudinally ribbed, spiralty striate ; lip not 

 lirate within, columella biplicate ; whitish. Length, 15 mill. 



Habitat unknown. 



Section TRIGONOSTOMA, Blainville. 



C. PISCATORTA, Gmelin. PI. 4, fig. 70. 



Coarsely reticulated by longitudinal and spiral ridges and 

 prickly at the interstices, shoulder smooth ; white tinged with 

 light chestnut or brown, and usually showing a central white 

 band ; interior of aperture orange-brown, with the white band. 



Length, 1-1*25 inches. 



West Coast of Africa. 



A peculiarity of this species is the single plait situated about 

 the middle of the inner lip. It is C. nodulosa, Lam. 



C. SPIRATA, Lam. PL 4, fig. 71 ; PI. 5, fig. 72. 



Whorls deeply excavated around the suture, smooth, longitu- 

 dinally ribbed near the apex, superficially spirally grooved on 

 the body-whorl ; aperture closely ridged within, columella with 

 three plaits; light yellowish brown or yellowish white with a 

 band or orange-brown spots encircling the shoulder angle. 



Length, 1 inch, 



So. Australia, Tasmania. 



C. excavata, Sowb. (fig. 72), is a light-colored variety. The 

 species has much the form of a miniature Eburna Australis. 



C. FOVEOLATA, Sowb. PI. 5, figs. 73, 74. 



Turriculated, whorls slantingly excavated at the sutures, 

 forming a sharp keel, smooth, or distantly obsoletely longitu- 

 dinally ribbed ; flesh-brown, blotched with orange-brown about 

 the keel, sometimes with an interrupted light central chestnut 

 band ; sometimes lineated with chestnut. Length, 12-20 mill. 



Cape of Good Hope. 

 C. SEMIDISJUNCTA, Sowb. PI. 5, fig. 75. 



Broadly umbilicated, the excavation defined by a sharp angle, 

 whorls broadly excavately angled at the suture ; spirally ridged 

 and grooved, the ridges and grooves divided by striae, obsoletely 

 distantly longitudinally ribbed ; columella two-plaited ; yellowish 



