38 SMITH : MARINE SHELLS FROM PORT ALFRED. 



Ethalia africana, n. sp. 



PI. iii, figs. 10, II. 

 Testa minuta, depressa, orbicularis, pellucido-alba, nilens, supra et infra plus 

 minusve spiraliter microscopice striata ; spira depressa ; anfractus tres, celeriter 

 accrescentes, ultimus callo conspicuo supra instructus, et infra callo crasso 

 umbilicale munitus, ad peripheriam rotundatus ; apertura fere circularis, 

 marginibus callo columellari crasso junctis. 



Diam. maj. 1.75 millini ; alt. fere i. 



Remarkalile on account of the callosity upon the upper surface of the 

 body-whorl. Very like E. perspirua and E. lucida, A Ad., from China and 

 Japan, but with more basal callus, 1 esides the callosity upon the upper surface. 

 It is the TeiWA'A^JTia /2<ciVi?«» of Sowerby's "Marine Shells of S. Africa," p. 13. 

 Cynisea fortieostata, n sp. 

 PI. iii, figs. 12, 13. 

 Testa C. (jratmlnsac similis, sed costis spiralibus crassioril>us et minus 

 numerosis instructa. 



Diam. maj. 7.5 millim , alt. 6. 



This species is of the same form as C. ijranulof<a, Dunker ( = C (jranu- 

 /ofum, A. Ad.), but is distinguished liy its fewer and stronger spiral ridges. 

 They are seven in num' er on the liody-whorl and prettily granular in well- 

 preserved specimens, the one bordering the deep umbilicus being especially 

 strong. In Dunker's species the ribs number 4 — 5 on the upper surface of 

 the last whorl and 6 — 7 below. The colour of this species is white, some- 

 times dotted with pink above upon the ridges. 



Retusa truncatula (Bruguicro. 



Utriculus trunrafulus, Bruguiere : Jeffreys, Brit. Conch., vol. iv, p 421 ; 

 Pilsbry, Man. Conch., vol. xv, p. 205, pi. x.\i, figs. 11, 12, 

 pi. xxiii, figs. 62 — 64. 



HaJ). — N. Europe, Mediterranean, Adriatic, Canaries. 



I believe this species has been erroneously cjuoted by Mr. Sowerby as 

 Cijlichna mnldlkafa, Mont. (Marine Shells S. Africa, p. 52). 

 AmpuUapina afpieana, n. sp. 

 PI. iii, fig 14. 

 Testa minima, irregulariter ovata, perforata, pallide fuscescens ; anfractus 5, 

 convexi, laeves, sutura profunda sejuncti; apertura concolor, piriformis; 

 peristoma continuum, margine columellari alho, reflexo, externo intus prope 

 insertionem incrassato. 



Longit. 4 millim., diam. 3. 



A small species without any striking characters. The surface is smooth, 

 excepting very faint lines of growth. The whorls are very convex, and the 

 suture almost channelled. The upper part of the whorls is more opaque 

 than the lower portion, the shell being thickened within. This is seen within 

 the aperture at the upper part. 



