60 ANcm.AitiA. 4. 



11. Deshayesii, A. Adams ? — A. elongata, sub-ventricosa, 

 pallide ciniiamomea ; spira exserta, acuminata ; anfractibus rotun- 

 datis ; varice albo, laevi, brevi ; apertura oblonga, antice leviter 

 unidentata (f. 68, 69). — Of a uniform pale cinnamon-colour, re- 

 sembling Sp. 10, but with more produced spire, rounded whorls, 

 and depressed suture. It is also less straight-sided. I find the 

 species named as above in Mr. Cuming's collection, probably by 

 Mr. A. Adams. 



12. lineolata, A. Adams. — A. parva, oblonga, pallide fulva, 

 longitudinaliter lineata, ad suturas albo-cincta ; apertura elonga- 

 ta, antice unidentata ; varice columellari parvo, striato (f. 22, 23). 

 — It is like a miniature representation of A. albisulcata, but be- 

 sides being a thin shell with more produced spire, it has a very 

 small narrow columellar varix. 



13. stkiolata, Sowb. Th. — A. parva, A. lineolata similis, sed 

 magis ventricosa ; spira breviuscula ; testa minute lineata ; varice 

 parvo (f. 24, 25). — This species might be a dwarf, pale, and line- 

 ated variety of A. albimlcata, but for the smallness of its varix. 

 It is more obtuse, solid, and ventricose than A. lineolata. The 

 fine longitudinal lines are not always visible. 



14. castanea, Sowb. Sp. — A. solida, ventricosa, castanea, alba 

 seu pallide rosea, intiis fulva ; spira pyramidali, mediocri ; aper- 

 tura ampla, antice unidentata ; varice columellari albo, polito, 

 leviter sulcato ; balteo inferiori simplice (f. 76 to 79). — Mr. Swain- 

 son considered this shell as representing Lamarck's A. ventricosa, 

 but the author of 'Species Conchyliorum' points out that no 

 tooth in the outer lip is mentioned in the description of that spe- 

 cies, while it is a distinguishing character in this. Our varieties 

 (f. 77, 78) are so much more angular in general form than the 

 others, that I felt almost inclined to separate them. 



15. ceassa, Sowb. Th. — A. aurantia, seu albido, A. castanea 

 similis, sed crassa ; apertura breviori, area inter balteum inferi- 

 orem et suturam dentiferam angustiori (f. 86, 90, 91). — Best 

 described by comparison with A. castanea ; it is thicker and 

 smaller, with shorter aperture. The area between the basal groove 

 and the basal belt is very narrow. 



16. ovalis, Sowb. Th. — A. ovalis, alba, ventricosa; spira pro- 

 ducts, ; apertura breviuscula, antice unidentata ; varice columellari 

 parvo, sulcato, balteo inferiori indistincto (f. 82, 83). — A small, 

 white, ventricose shell, resembling A. castanea, but with much 

 shorter mouth and very small varix, the basal belt indistinct. 



