70 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
"Spiral sculpture," the markings following the direction of the 
coil of the whorls. 
PYRAMIDELLA Lamarck. 
Pyramidella Lamarck, Prod, d'un class, de coq., p. 76, 1799, = Obeliscus,^ 
Museum Calonnianum, p. 24, 1797, = Pyramidellus Montfort, Conch, syst., 
vol. 2, p. 499, 1810. 
Shell elongate-conic, whorls usually inflated and regularly increasing; 
the pillar with from one to three folds; the outer lip entire. 
Type, Trochus dolahratus Linne. 
Key to the Subgenera of Pyramidella. 
Columellar folds two Eulimella. 
Columellar fold single Syrnola. 
I 
Eulimella Forbes. 
Eulimella Forbes, Ann. mag. nat. hist., vol. 14, p. 412, 1846,= Belonidium 
Cossmann, 1896,= Loxoptyxis Cossmann, 1888. 
Elongate-conic shells, having the surface polished; marked only 
by faint incremental lines and microscopic spiral striations; base 
without fasciole; columellar plaits two. 
Type, Eulimella scillae Scacchi. 
Pyramidella (Eulimella) ventricosa (Forbes). 
= Eulimella ventricosa Verrill, Proc. LT. S. nat. mus., vol. 3, p. 380, 1880. 
Of this species, Verrill states in the citation referred to above: 
"A single dead specimen, not in good condition, but apparently 
belonging to this species, was dredged by us at Eastport, Me., in 1868. 
A perfect specimen was dredged by us this season, at station 873, in 
100 fathoms. This last has a distinctly incurved, small, nuclear 
whorl; whorls nine, smooth, polished, white, well rounded, with deep 
sutures. Aperture broad-ovate, slightly effuse in front. Outer lip 
broad, well rounded in the middle and projecting well forward. 
Length, 3.6 mm." 
We have not seen this species from our coast. 
1 .'Vnonyniou.s iiublislicd name, cf. Proc. biol. soc. Washington, vol. 17, p. 2, 1904. 
