224 BULLION. 



Fig. 514. growth ; spire concealed ; labrum extends a litllc below the 

 £S| spire, nearly straight above the centre, regularly rounded 

 ^0 below and at base ; aperture narrow at the upper part, rather 

 E. occui- broad at the base. Length, one fifth of an inch ; breadth, 

 three twentieths of an inch. {Mig-hels and Adams.'} 

 Westbrook, Maine, fossil. Recent in New England and Green- 

 land. 



Cieiius TOR]^ATEL,L..4, Lam. 1812. 



Head depressed, with a quadrate disk, bi-lobed in front, with 

 broad, posterior, tentacular lobes ; eyes sessile on the middle of the 

 head ; mantle included within the shell ; foot oblong, truncate in 

 front, obtuse behind. 



Shell oval, spirally grooved, whorls few ; aperture long, narrow, 

 rounded before ; outer lip thin, inner lip spirally twisted to form a 

 fold. 



Tornatella puncto- striata. 



Fig. 188. 



Shell minute, white, sub-oval ; whorls four or five, the lowest one large, the 

 lower half marked with revolving, punctured hues; suture deep; fold of columella 

 distinct. 



Tornatella puncto-slriatn , Adams, Best. Journ. Nat. Hist. iii. 32.3, pi. 3, fig. 9 (1840). — 



De Kav, N. Y. Moll. 127, pi 7, fig. 143. — Stimpson, Check Lists, 4 (1860). 

 Acto'on puncto-striata, Stimpsox, Shells of New England, 51. 



Shell minute, white, elongated-oval, inclining to ovate ; whorls 



four, perhaps five, the lowest one at least three fourths the length 



of the sliell, distended, the portion above the aperture plain 



Fig. 515. gj^j-j smooth, the remainder marked with ten to fifteen deep, 



tratlicr distant revolving lines, which are indented with mi- 

 T nutc ])unctures ; the other whorls form a short, rapidly di- 

 minishing spire, and each of them is flattened so as to form 

 ^stnTta."' ^ shoulder at the suture, which is deep and somewhat chair 

 nollcd. Aperture narrow, two thirds the length of the lower 

 whorl, widening downwards ; outer lip sharp and simple, regularly 

 curved, not very broadly rounded at base ; pillar thickened, exhibit- 

 ing a prominent fold ; uml)ilical region depressed, and in immature 

 specimens it is open. Length, one tenth of an inch ; breadth, three 

 fortieths of an inch ; divergence, sixty degrees. 



