1918 | Grinnell: A Synopsis of the Bats of California 253 
Otopterus californicus, Stephens (1906, pp. 276-277, 1 fig.). Description; 
distribution ; habits. 
Otopterus californicus, Lyon and Osgood (1909, p. 290). Location of type. 
Macrotus californicus, Miller (1912, p. 36). Type locality; range. 
Macrotus californicus, J. Grinnell (1913b, p. 275). Range in California. 
Diagnosis —Size medium (total length 93-103 millimeters) ; ear 
reaching beyond tip of muzzle when laid forward; distinct leaf-like 
vertical appendage on nose; color, above, pale drab to broccoli brown, 
below, drab, the longer hairs tipped with white. 
Description: Head.—-Elongate, slender, rostrum rather attenuate ; 
ears oval and slightly hairy, connected at their bases by an incised 
transverse membrane, when stretched forward exceeding muzzle by 
one-third entire length of ear; tragus lanceolate, one-third height of 
ear. Hye almond-shaped.  Nose-leaf blunt-lanceolate, higher than 
width of pad from which it rises (text-figs. F, G@). Nostrils crescentie, 
placed obliquely in nose pad. A triangular pad at apex of chin. 
Fig. F. Side view of head of Macrotus californicus (drawn from specimen 
no. 19127), X 1.00, showing simple nose-leaf, long ears, and erect pointed tragus. 
Fig. G. Front view of head of Macrotus californicus (drawn from specimen 
no. 19127), X 1.00, showing position of nostrils in pad at base of nose-leaf, 
incised transverse membrane connecting bases of ears, and triangular pad at 
apex of chin. 
Limbs and Membranes.—Forearm slightly bowed. Thumb, ex- 
clusive of claw, about 7 millimeters in length, and slender. Wing 
short and stout; length of fifth metacarpal equaling and sometimes 
exceeding that of third metacarpal. Toes compressed, giving foot a 
slender aspect. The tail projects beyond edge of interfemoral mem- 
brane for the length of one or one and one-half vertebrae. The mem- 
branes of this bat are parehment-like rather than leathery, and are 
not furred. 
Pelage——F ur on body silky; on back about 8 millimeters in length, 
on under surface about 6 millimeters; ear with posterior base covered 
with hair of a woolly texture. Interior surface of ear, and proximal 
three-fourths of anterior border of ear with scattered long hairs. 
Color.—In dried specimens the color of the distal third of the hairs 
on the upper surface varies from pale drab to broccoli brown. The 
proximal two-thirds is white, and this shows throngh the darker outer 
