ANCILLARIA. 5. 61 



17. ebornea? Desk. — A. parva, pallida; spirit acuminata, py- 

 ramidali; apertura antice unidentata; varice columellari rninuto, 

 canali valido post varicem posito (f. 84, 85). — It is like the more 

 angular form of A. castanea, but the colour and small size of the 

 full-grown shell, with the extreme smallness of the varix, will 

 sufficiently distinguish it. I am not certain of the identity of this 

 species with the one so named by Deshayes, but it is partly cor- 

 roborated by a little callus which is observable at the angle of the 

 aperture. 



18. ventricosa, Lamh. — A. ovalis, ventricosa, politissima, 

 castanea, seu aurantia, seu rubro fasciata ; spira acuminata, sub- 

 producta; sutura inferiori celata, balteo inferiori simplice ; aper- 

 tura subovali, edentula; varice albo, polito, sulcato (f. 87, 88, 89). 

 — This species resembles the more oval form of A. castanea, the 

 difference being that the basal groove is covered by the enamel, 

 and becomes obsolete at the margin of the aperture, so that there 

 is no tooth. One of the commonest species. 



19. fulva, Swains. — A crassa, ovali, infra lata, fulva seu alba, 

 seu fasciis pallidis roseis albis et fulvis variegata ; sutura inferiori 

 celata ; apertura infra effusa, edentula ; varice crasso, sulcato (f. 

 72 to 75). — Much more thickened and oblique than A. ventri- 

 cosa, with the lower part peculiarly widened and the aperture sub- 

 trigonal. Rather common. 



20. variegata, Swains. — A. latior quam A. ventricosa, magis 

 cylindrica et solida, pallide fulva, fasciis albis et roseis variegata 

 (f. 70, 71). — This species and the preceding are admitted as va- 

 rieties of A. ventricosa in the 'Species Conchyliorum;' but I think 

 the broad base of A. fulva, and the wider and more cylindrical 

 form of A. variegata, being constant characters, are sufficient to 

 distinguish them. 



21. exigua, Sowb. Sj). — A. parva, alba seu pallide fulva, ovalis ; 

 spira producta, acuta; apertura parva, edentula, infra effusa; co- 

 lumella varice parvo, trigono, striato et prope angulum aperturae 

 callo acute producto ; sutura inferiori celata (f. 80, 81). — Tins 

 pretty little species is remarkable for a notch in the columella, 

 produced by the projection of an angular callosity, which is not 

 observed in any other species. 



Sect. II. Spire-covering enamel not reaching the basal suture. 



22. Tankervilii, Swains. — A. ovali-elongata, aurantio-flavida ; 



