PUPID A. 69 
7-8, somewhat tumid; aperture depressly rounded; peristome 
thin, simple, margins approximating. Jaw and radula as in 
Cylindrella; inferior tentacles atrophied. 
Macroceramvs, Guilding, 1828. 
Syn.—Leptospira, Swains., 1840. Colobus, Albers, 1850. 
Distr.—50 sp. West Indies and adjoining Continent. J. 
Jeannerett, Gundl. (xcix, 59). 
Shell oval or cylindrically turreted, apex more or less obtuse; 
whorls numerous, the last subangular; aperture subcircular ; 
peristome thin; lips approaching, the columellar lip dilated and 
reflected. 
The animal has a short foot; inferior tentacles rudimentary ; 
jaw similar to Cylindrella, very finely plicate ; radula elongated, 
the central tooth small, obtuse, laterals and marginals similar, 
palmiform, with elongated bifid internal cusps. 
The shell has usually a porecellanous white surface, here and 
there spotted and striped with brown and ash-color. 
Mr. Bland believes Pupa vetusta, a carboniferous fossil of 
Nova Scotia, to have belonged to this genus: Fischer has made 
for it a section of Pupa, which he calls Dendropupa. 
Famity PUPID. 
Shell generally minute, multispiral, cylindrical, with obtuse 
summit (Pupiform); aperture small, usually contracted by 
internal teeth or lamelle. 
Jaw smooth or finely striated, sometimes with a superior 
appendage resembling that of Succinea; radula resembling Helix, 
the central and lateral teeth similar, tricuspid, the marginals 
transverse, very short and denticulated. 
Popa, Lam, 1801. 
Syn.—Cochlodonta, Fer., 1820. Cochlodon, Lowe. 
Distr.—317 sp. Universal, boreal and tropical. Fossil, 50 sp. 
Carb., N. America; Hocene—, Europe. 
Usually very small, cylindrical or oval-oblong; umbilicus 
slight or a mere slit; plicate, striate or costellate, brown or horn- 
color; columella plicate or subdentate; lip reflected, usually 
dentate or plicate within, the extremities usually joined by a 
raised callus. 
Animal with a short foot, pointed behind; lower tentacles 
short. 
ANOSTOMELLA, Martens, 1867. Shell small, short egg-shaped, 
ribbed, epidermis brown; lip expanded, without teeth. P. ascen- 
dens, Martens. Amboina. 
TORQUILLA, Stud., 1820. (Chondrus, Hartmann, 1821. Gra- 
naria, Held,1837. Alloglossa, Lindstrém.) Shell oval-oblong or 
