378 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Gaeotis fiavolineata Shuttleworth. 
Girotis fiavolineata Shuttleworth, Diagn. neue Moll. Berner Mitth., 1854, p. 127. 
Sierra de Luquillo; Arecibo; Utuado, Porto Rico (Crosse). 
Gaeotis malleata Pilsbry. 
Gxotis mallcala Pilsbry, Manual, 2d ser., xn, p. 230, pi. LXII, figs. 36-40, 1899. 
Near San Juan, Porto Rico (Pilsbry). 
Gaeotis albopunctulata Shuttleworth. 
Gxotis albopunctulata Shuttleworth, Diagn. neue Moll. Berner Mitth., 1854, p. 36. 
Humacao, Porto Rico, on tree trunks (Crosse). 
Subfamily BULIMULINJE. 
Genus BULIMULUS Leach, 1815. 
Shell varying from ovate-conic to oblong, columnar or lanceolate, umbilicate or imperforate; 
aperture with the lip thin, generally not expanded; columella expanded, rather straight; apical 
whorls either smooth, vertically cos tu late, or with the wrinkles interrupted and broken into granules. 
Type, Bulimulus exilis Gmelin. 
Subgenus Bulimulus s. s. 
Bulimulus exilis Gmelin. Plate 53, fig. 3. 
Helix exilis Gmelin, Syst. Nat., p. 3668, 1792. 
Shell narrowly perforated, somewhat elongated, thin to solid, dirty white or whitish with purple- 
brown spire and base, often with from one to three dark revolving bands, the upper and lower wide; 
surface nearly smooth; whorls about six, the first two delicately zigzag striate; sutures well marked; 
aperture about two-fifths length of shell, showing within markings of exterior; outer lip scarcely 
thickened or reflected; columella nearly straight, reflexed so as to partially cover umbilical opening. 
Height, 20; diameter, 9; height of aperture, 9 mm. 
Aguadilla; San Juan, Porto Rico. 
Bulimulus exilis var. eyriesii Drouet. 
Bulimus eyriesii Drouet, Ess. Moll. Terr. Fluv. Guvane Fran., p. 63, pi. I, figs. 12, 13, 1859. 
This form is slightly thinner than the type, is never banded but is nearly uniform colored and 
shows faint revolving strife. The lower part of the shell is generally a little wider than the type. 
San Juan, Porto Rico. 
Bulimulus diaphanus Pfeiffer. Plate 53, fig. 6. 
Bulimus diaphanus Pfeiffer, P. Z. S., 1854, p. 125. 
Shell perforate, thin, fragile, covered with a delicate, horn-colored epidermis, which is pinched up 
throughout into broken, revolving lirse; whorls six, somewhat rounded; the apex punctately reticulated; 
aperture ovate, about three-sevenths of the length of the shell; outer lip thin, not expanded; columella 
reflexed over the umbilicus. 
Height, 16; diameter, 7 mm. 
Under rocks in pastures, Bayamon, Porto Rico; Caguas, under bricks in a garden. 
Genus DRYMiEUS Albers, 1850 
Shell ovate or oblong, with conic spire, umbilicate or imperforate, rather thin; aperture triangular 
to ovate; lip simple or expanded; apical whorls with a minute, even grating of longitudinal and spiral 
striae. Type, Drymseus hygrohylseus d’Orbigny. 
Subgenus Drymteus s. s. 
Drymseus hjalmarsoni Pfeiffer. 
Bulimus hjalmarsoni Pfeiffer, Mai. Blatt., in, p. 51, 1856 (unfigured). 
Pajas plantation, near Manati, Porto Rico (Crosse). 
