278 Mr. Swa.mson*s Monograph 



In the first description of cinnamomea, he refers to Martini, 2 tab. 

 65. f. 731 ; but in his next, he transfers this reference without 

 any explanatory notice, to A. ventricosa. This last figure of Mar- 

 tini seems to me too ambiguous to admit of being cited for either 

 cinnamomea or ventricosa. 



On the whole, it must either be supposed, that Lamarck's 

 cinnamomea is a distinct species, having a coloured varix, a single 

 bastil groove, and a smooth margin to the lip, (the two first cha- 

 racters not appearing in any of the figures he cites,) or that he has 

 incorrectly described the shell figured by Martini (f. 1381.) The 

 latter supposition is most probable ; and I therefore propose to 

 consider this figure as representing the true cinnamomea. 



M. Sowerby represents the same shell as Martini, (f. 1381), sup- 

 posing it the marginata of Lamarck. That, however, is a very 

 distinct species, with an elongated spire, and comes under our 

 next division. 



5. Asci-Li.A-B.iA fulva. Sp. Nov. Mihi. 



A. tests ovatS, julv6, aut rufS ; basi baited sim^ici cinctd ; lahio exleriore 

 lesvi ; varice cohimellari mb-bntriato. 



Shell ovate, fulvous ; base with a single belt j outer lip smooth; varix 

 of the pillar with two striae. 

 Size of variegata ; but is much less ventricose, and the base more 

 oblique ; its form is oval, and more swelled than any of the preced- 

 ing species ; its spire also is more produced and pointed, and is half 

 the length of the aperture ; the varix is small, white, and has only 

 two grooves or strise, the lower of which is very faint; the base has 

 only a single belt, and the margin of the outer lip is quite smooth. 

 The whole shell is either of a uniform orange yellow, or cinnamon 

 colour, with the point of the spire white. Habitat Mus. nost. 



6. Ancillaria variegata. Sp. Nov. Mihi. 



A. testa ovato-vcntricosd, albescente, fasciis caslaneis varid ; basi balteo 

 simplici cinctd ; labia exleriore Icevi ; varice columellari bistriato. 



Shell ovate-ventricose, whitish, variegated by chestnut bands ; base a 

 single belt ; outer lip smooth j varix of the pillar bistriated. 



Size of the last ; but is much more ventricose, and the pillar 



