36 SMITH : MARINE SHELLS FROM PORT ALFRED. 



apcrtura piriformis ; labrum leviter incrassatum ; columella arcuata, anguste 

 reflexa. 



Longit. 4.5 millim., diam. 1.5. 



The slightly thickened labrum and the varices, or former labra, are the 

 peculiar features of this species. 



Euiimella nivea, n.sp. 

 PI. iii, fig. 2 

 Testa alba, elongata, subulata, nitens, minute spiraliter substriata et lineis 

 incrementi tenuibus sculpta ; anfractus circiter 12 fere plani, sutura profunda 

 leviter obliqua sejuncti, ultimus ad peripheriam rotundatus ; apertura parva, 

 rotunde subquadrata ; labrum tenue ; columella incrassata, reflexa. 

 Longit. 10 millim., diam 2 ; apertura 1.3 longa. 

 A long, gradually tapering shell, consisting of numerous slowly increasing 

 whorls which are separated by a deep suture. All three examples have lost 

 the protoconch. 



Euiimella minor, n .sp. 

 PI. iii, fig. 3. 

 Testa elongata, gracilis, alba, polita, subpellucida ; anfractus 10, duo apicales 

 globosi, sinistrales, transversim siti, caeteri fere plani, sutura obliqua distincta 

 sejuncti, infra suturam zona subopaca angusta cincti, ultimus ad peripheriam 

 rotundatus ; apeitura subi)iriformis : labrum simplex ; columella leviter 

 incrassata et reflexa. 



Longit. 5 millim , diam. i ; apertura .75 longa. 



A narrower shell than E. nir/'ci, with longer, more rapidly increasing 

 whorls. It is also more pellucid and exhibits an infrasutural zone. 



TuFbonilla gemmula, n.sp. 

 PI. iii, fig. 4 

 Testa minima, pellucida, nitens, costis numerosis flexuosis oblicjuis tenuibus 

 instructa ; anfractus norma les sex, convexi, sutura profunda oblicjua sejuncti, 

 ultimus costis infra medium obsoletis ; apertura parva, irregulariter ovata ; 

 columella rectiuscula, levissime incrassata et refle.xa. 



Longit. 3.5 millim., diam. i. 



A very small pellucid shell with 17 — 18 oblique and slightly flexuous 

 ribs, six normal whorls and a globose protoconch, consisting of about two 

 whorls. Apparently there is no spiral sculpture of any kind. 



TuFbonilla deeora, n.sp. 

 PI. iii, fig. 5. 

 Testa elongata, alba; anfractus normales sex convexi, longitudinaliter obliciue 

 tenuiter costati, inter costas spiraliter striati, sutura obliqua profunda sejuncti, 

 ultimus costis infra medium plus minus obsoletis, lineisque spiralibus baud 

 interruptis ; apertura longit. totius circiter ^ aequans ; columella vix incrassata, 

 leviter reflexa, baud plicata. 



