THE NAUTILUS. 3 
phery of body whori also with a yellow color band, both above and 
on base, suture moderately impressed. Aperture oblique, acute oval, 
umbilicus wide and deep, base somewhat rounded. 
Diameter 17 mm. 
This handsome shell is similar to the well known T. bicolor Mts., 
but is larger, has a different and wider umbilicus, is flatter and dif- 
fers in its coloration; the base is a uniform brown, except at peri- 
phery of body whorl. 
Type in my collection, examples also in Academy of Natural 
Sciences of Philadelphia. 
Lagocheilus marangensis n.sp. PI. I, fig. 5. 
Shell turbinate, umbilicate, whorls six, convex, epidermal lines of 
growth prominent at sutures, shell with a dotted band of red just 
below suture, and also another one on base below periphery of body 
whorl; aperture circular, with a very thin callus on the body whorl ; 
lip expanded, partially reflected over the umbilicus. 
Diam., maj. 8 mm., alt. 9 mm. 
This species is very close to L. ciliocinctus Von Martens, but au- 
thentic specimens of that species do not show the dotted red band on 
the base. The body wall has a connecting callus, the lip is also 
somewhat exserted, while our species differs in both these particulars. 
Omphalotropis (Selenomphala) dohertyi n.sp. PI. I, figs. 1, 2. 
Shell umbilicated ; ovate conical, very finely striate; whorls 6 to 
7, convex, suture deeply impressed, aperture ovate, peristome sim- 
ple, color yellowish brown. 
Diam. 3 mm., alt. 43 mm. 
This species is close to O. colombeliana Heude, but has one more 
whorl, and a more expanded outer lip. Dr. O. Von Mollendorf 
pronounces it new and of a group not heretofore known from Su- 
matra. 
Leptopoma fultoni n.sp. PI. I. figs. 11, 12. 
Shell medium, conical, narrowly umbilicated, whorls six, the first 
three smooth, the others with numerous revolving lines, aperture 
oblique, rounded, exserted lip expanded and tinged with red within ; 
a few specimens show a dark green band extending from the back 
of the inner red coloring half around the body whorl, gradually 
narrowing to a point. Those with this green band are invariably 
smaller than those without it. 
Height 12 mm., max. width 13 mm. 
