OTOSTOMUS. — 221 
W. Guatemata: coast near Champerico, in woods, on the trunk of a young Bombar 
ceiba (Stoll). 
CentRAL Nicaragua: San Nicolas, copses in the Savana-region (Tate +). 
Costa Rica (Gabb5). 
S. Panama: Chiriqui (mus. Brit. 5). 
Cotomsra: Cartagena (Gibbon !-3). 
Eastern Peru: Tributaries of the Upper Amazons (Bartlett }°). 
O. maculatus much resembles O. dormanni, Binn., from Florida, but is distinctly 
narrower in proportion to its length. The specimens collected by Dr. Stoll at 
Champerico measure :—length 22-23, breadth 94-10, and length of aperture 94-10 
millim.; Morelet’s specimen, according to Fischer and Crosse ®, is 26, 103, and 114 
millim. The type from Cartagena, according to the figure given by Lea', has 
nearly the same dimensions as those from Champerico. The coloration appears to 
consist in all specimens of three upper rows of rather small squarish brown spots and 
two inferior bands of the same colour, the last close round the umbilicus. The upper- 
most row of spots is almost absent in one specimen from Champerico; in the third 
row of another specimen from the same locality the spaces between the spots are of 
a very pale brownish hue, so that the whole row may be described as a very pale band 
articulated by darker spots; in a third specimen, also from Champerico, the first of 
the two bands is here and there a little interrupted. Hence we may conclude that in 
this species, as in O. dormanni, there are typically five bands, the upper ones regularly 
broken up into rows of spots. In O. dormanni there is a distinct approximation or 
connection of two spots from different rows, but I can detect no trace of this in 
O. maculatus. 
The specimens from Champerico exhibit a distinct, though very faint, thin, and short 
expansion of the outer edge of the aperture. 
The living animal is described by Dr. O. Stoll as follows :—‘‘ Body rather small and 
narrow in proportion to the shell, 3 centim. long; back very convex, higher than 
broad, with irregular longitudinal wrinkles, whitish-grey, with a few very small blackish 
spots, as if it were dusty. Upper feelers 1 centim. long, thin, pale bluish in the 
hinder part, brownish-yellow anteriorly ; eyes excentric, black. Lower feelers only 
2 millim. long, slightly swollen at the base, bluish behind, brownish-yellow at the tip. 
Face narrow, produced ; buccal lobes shorter than the lower feelers, extended down- 
wards and forwards. Hind part of the foot flat, pointed,’ pale-coloured.” 
32. Otostomus totonacus. 
Bulimulus totonacus, Strebel, Beitr. Mex. Land- und Siissw.-Conch. v. p. 84, t. 5. figg. 18, 134 
(shell), t. 13. figg. 11 a, m (radula), t. 14. figg. 9 a-r, and 10 & (anatomy) ’. 
Otostomus (Mormus) totonacus, v. Mart. Conch. Mittheil. ii. p. 193 *. 
