SOUTH AFRICAN MARINE MOLLUSCA. 207 



grooved; coluinellar plate wliitisli pearly, flattened, edged 

 externally with a tliin red line. 



Length 41^ diani. 29'5 nnn. 



Hab. — Isezela, Natal (F. Quekett). 



This species somewhat resemljles H. enima' (rraij, bnt it 

 is moi-e coai'sely sculptured and has no radiating plictu, and 

 the raised ridge is less prominent, and more remote from the 

 row of holes than in that species. 



In the pi'esent form there are only about twelve spiral 

 ridges between the series of perforations and the suture, 

 whereas in H. emmte there are twice that number. 



H. (Padollus) parvus, another South African form, is 

 renuirkable for the fineness of its sculpture, and very distinct 

 from the present species. I have named this species after 

 Mr. F. Quekett, who kindly sent it to me for examination. 



vScissurella jucunda n. sp. PI. VIII, figs. 2-2^/. 



Testa minuta, oblique suborbicularis, tenuis, pellucida, late 

 umbilicata ; anfractus tres, celeriter crescentes, convexi, 

 longitudinaliter tenuissime costulati, costulis supra anfractum 

 primum numerosissimis, in anfr. sequentibus sensim majis 

 remotis, liris spiralibus quoque tenuibus cancellati, liris supra 

 costulas minute tuberculatis ; anfr. ultimus ad scissuram 

 bicarinatus, infi'a carinaui inferiorem hand profunde con- 

 strictusj scissura per ^ anfractui extendens; aperturaobliqua, 

 subovata ; peristomium tenue, nuirgine dextro in medio 

 interrupto, columellari supra leviter dihitato, margine externo 

 juucto. 



Diam. maj. 1, alt. '75 mill. 



Hab. — Four miles south of Port Elizabeth (J. Farquhar). 



The sculpture should be examined under a compound lens. 



The longitudinal riblets are much closer together upon the 

 first whorl than upon the last two. 



Schismope carinata {A. Adaiiis). PI. VIII, fig. 3. 

 Scissurella carinata A. AdaviN, 'Ann. Mag. Nat. Hist.,' 

 1862, vol. X, p. 346. 



