68 SCHISMOPE. 



raised margins; longitudinally plicate, plicse more prominent at 

 the base; aperture ovate, of moderate size. Alt. 1, diam. J mill. 

 (Petterd). 



Northwest Coast of Tasmania. 

 S. beddomei PETTERD, Quart. Journ. Conch. 1884, vol. iv, p. 139. 



S. PULCHRA Petterd. Shell thin, white ; whorls 4, last with two 

 prominent keels at the periphery and several smaller at the base, 

 longitudinally striate, strise passing over the keels, giving them a no- 

 dose appearance. Alt. 2, diam. 1 mill. (Petterd.) 



Northwest Coast of Tasmania. 



In form not unlike S. atkinsonii Ten ison- Woods, but very differ- 

 ent in ornamentation. It was found in shell sand, and from its light 

 texture is generally more or less broken. This is the fourth species 

 of the genus described from our coasts. (Petterd.) 



Schismope pulchra PETTERD, Quart. Journ. Conch. 1884, vol. iv, 

 p. 139. 



S. TASMANICA Petterd. Shell minute, obliquely globose, per- 

 forated, thin, white, somewhat shining ; spire scarcely raised, 

 minute; whorls 3J, last much inflated, perforation deep, margined 

 with a prominent ridge which is faintly serrated ; obscurely irregu- 

 larly striate all over ; sinus deeply open, the fascia of which forms a 

 deep groove encircling body whorl ; aperture rounded, inner lip 

 faintly dilate, labrum thin, acute. Alt. 2, diam. 2 mill. (Petterd.) 



Blackmail's Bay, Tasmania. 



The second species discovered here ; it may be easily known from 

 the first, S. atkinsoni Tenison- Woods, by the smooth globose form 

 and color. I have only collected two specimens in shell sand at 

 the locality given. (Petterd.) 



Schismoiie tasmanica PETTERD, Quart. Journ. Conch. 1879, vol. 

 ii, p. 104. 



SCISSURELLA RiMULOiDES Carpenter. Shell rapidly enlarging, 

 whitish, very thin ; apex concealed ; whorls 3, radiately lirate, the 

 line subdistant, acute, oblique ; umbilicus large ; lip sloping, scarcely 

 fissured, but with an aperture formed posteriorly as in Rimula, sub- 

 quadrate, elongate ; peristome continuous, oblique. 



Alt. -023, diam. '03 in. 



Only one specimen w r as found of this beautiful little species, th< 

 first known from America. It looks like a Velutina crossed by 

 sharp ribs in the direction of the slanting mouth. In the first whorl 



