The Hon. E. Chitty on the Stoastomidae. /141 



Genus V. Metcalfeia, Chitty. 



Shell, depressed conic. 



Metcalfeia Chittyana, Chitty. See Stoastoma Chittyanum, 

 Ad. Mon. Stoast. Ad. 1849, p. 10 j Cat. Phaii. p. 231. 



Hab. Peace River, Manchester. 



Operculum, very slightly concave, with two strong lamellae cross- 

 ing its centre horizontally, and on the labial side two much finer 

 ones above, and three or four below. 



Metcalfeia Metcalfeiana, Chitty. 



Hab. ? Hanover. 



Form, depressed conic. Colour, pale horn. Sculpture, lines of 

 growth visible ; sixteen strong, but not much raised inequidistant 

 spiral carinse, those round the umbilicus being most prominent, with 

 here and there one very fine carina intervening. On the upper 

 whorl, 5 carinse. Spire, moderately elevated with very slightly con- 

 cave outlines. Apex, obtuse. Whorls, A\, very moderately convex, 

 with a slightly impressed suture. Aperture, subsemicircular, slightly 

 spreading. Labrum, subangularly produced from the body-whorl, 

 not abruptly produced, deeply pectinated by the spiral carinse. La- 

 bium, slightly detached from the body-whorl, very slightly curved 

 below to the right ; much below the plane of the labrum. Umbilicus, 

 very deep and narrow. Labral lamella, very little, but sharply, pro- 

 duced, not concealing the umbilicus. Operculum, slightly concave, 

 finely granulated in the hollow with three strong, apparently not ser- 

 rated, horizontal lamellae, extending from the labral side over two- 

 thirds of the width of the operculum, and one equally strong between 

 the first and second above extending one-third across only, the lowest 

 slightly curved downwards. 



Height 0-073, greatest breadth 0-096, least breadth 0-079. 



Named in compliment to W. Metcalfe, Esq., the possessor of a 

 fine cabinet of shells. 



Metcalfeia Baquieana, Chitty. 



Hab. Near "The Cave," high road, Westmoreland. 



Form, depressed conic. Colour, rich brown, fading into faint yel- 

 low and white. Sculpture, 1 9 spiral carince, with one fine intervening 

 between each pair. On the upper whorls 6 carinas. Spire, moderately 

 and rather concavely elevated. . Whorls, 4|-, slightly rounded with a 

 slightly impressed suture. Aperture, slightly expanded, shortly and 

 roundly produced from the penult whorl, scarcely depressed ; sub- 

 semicircular, rather dilated above. Labrum, pectinated by all the 

 stronger carinse, slightly scolloped. Labium, slightly detached from 

 the penult whorl, rather abruptly detached from the labrum above 

 and curved below to the right, much lower than the plane of the 

 labrum below. Umbilicus, not deep. Labral lamella, expanded 

 above, narrow round the umbilicus. Operculum, concave in the 

 middle, seven lameJlse radiating horizontally from the labial side, one 



