ANCILLARIA VENTRICOSA. Fig. 26 to S2. 



Lam. Anim. sans vert. VII, 413. 

 A. testd ovatd, venlricosd, apice acuminata ; fulva, suturd pallida ; basi balteo simplici cinctd ; aperturd superne acuminata. 

 infrd. effusd ; labia externo l<xvi, edentulo ; varice columellari brcviusculo, obliquo, bistriato. 



Syn. A. fulva, Swains, in Journ. of Science, Lit. and Arts, XVIII, 278. 



Hab. in littoribus Insula? India? Orientalis Haynam dicta, G. Humphrey. Mus. Broderip, Swainson, Goodall, nost. 



Var. l ma testa flava, sutura albicante, mus. nost. 



Var. 2 da testa albescente, fasciis fulvis varia ; A. variegata, Swains. 1. cit. 278. Mus. Broderip, Swainson, Goodall, nost. 



Desc. Shell ovate, ventricose, apex of the spire acuminated ; of a dark orange-brown, the suture being paler ; a single 

 belt, whose upper edge is rather prominent, surrounds the base of the last volution ; aperture double the length of the spire, 

 acuminated at the superior extremity, effuse at the lower ; edge of the outer lip even, without any tooth ; columellar varix rather 

 short, white, oblique, with two stria?, of which the upper is the stronger. Inside paler than the outside. 



Of this species two varieties have occurred to me, the first of a beautiful yellow colour, with a nearly white suture ; the other of 

 a light colour, with fulvous bands: this last is the A. variegata of Swainson, lam, however, convinced by the examination of a 

 number of specimens, that it must only be regarded as a variety of this species, a circumstance at the probability oi which Mr. 

 Swainson hints. 



The species here described, which is the A. fulva of Swainson, accords much better with Lamarck's A. ventricosa than the 

 one Swainson has designated by that name : Swainson's A. ventricosa is chesnut-brown, not orange-brown : its spire is more 

 acuminated, consequently no*i rather obtuse, its varix is much more striated than in this species, and moreover it has a strong 

 projecting tooth near the base of the outer lip, which is not mentioned by Lamarck in Lis description of A. ventricosa. The figure 

 of Martini II. t. 65, f. 731, cited by Lam. for his A. ventricosa, is a representation of a young Cowry. 



ANCILLARIA EXIGUA. Fig. 33 to 35. 

 A. testd exigad, oblongd, spird acuminata longitudinem apertures ceqaante ; ultimo anfractu, balteo basali unico, et sulco supra 

 varicem iastructo, varice brevi, oblique striato ; plied solitarid columellari in superiore apertures parte positd ; labio 

 externo edentulo ; long. T \, lat. T %, poll. 



Hab. . Mus. nost. 



Desc. A very small species of an uniform light brown colour ; spire acuminated, equal in length to the aperture ; last 

 volution with a single basal belt, and a whitish band near the upper edge ; a short groove is also observable above the columellar 

 varix, which is short and obliquely striated ; the callosity of the columella forms also a single fold near the upper part of the 

 aperture : there is no tooth on the outer lip. 



About twenty specimens of this little shell were found among Mr. G. Humphrey's small Olives : at first sight I thought it 

 might prove to be only the young of A. fulva, it is, however, very distinct, and may be known by the fold on the columella near 

 the upper end of the aperture. 



ANCILLARIA CINGULATA. Fig. 36, 37. 

 A testd oblongd, pallida, tenui, suturd distinctd, anfractibus ventricosis, superioribus rujb-fuscis, infra carinulatis, omnibus 

 superne albo-cingulatis : anfractu ultimo balteis duobus basilaribus Icivibus, superiore rufo-fusco ; varice columellari 

 tenui, albo, angusto, glaberrimo ; long. 2 T \, lat. 1, poll. 

 Hab. in Oceano Sinensi. Mus. nost. 



Desc. Shell oblong, pale brown, thin, suture distinct ; volutions ventricose, upper ones reddish brown, with a very small 

 keel at the lower edge, and a rather broad white belt at the upper margin ; last volution with two smooth belts at the base, of 

 which the upper one is reddish brown : a depression separates the lower one from the columellar varix, which is narrow, thin, white, 

 and very smooth. 



A very remarkable species ; of which I have received a single specimen from China ; it is a thin and delicate shell : my 

 specimen is imperfect, having lost the apex of the spire, and part of the edge of the outer lip : the reddish brown colour of the 

 upper volutions terminates rather abruptly a little beyond the commencement of the last. 



Before this was sent to press, two other specimens have occurred, which shew that the apex of the spire is obtuse and 

 mammillary. 



