lows:

Tomodactylus saxatilis new species

_Holotype._--KU 63326 (Fig. 1); obtained eight miles west of
El Palmito, Sinaloa, approximately 6100 feet, on 23 June
1961; original field number, 2354 of Robert G. Webb.

_Paratypes._--A total of 12 specimens: KU 63327-33, same data
as holotype, 23-25 June 1961; MSU 4085-88, two miles north of
Pueblo Nuevo, Durango, approximately 6000 feet elevation, 24
July 1960; MSU 4089, one half mile west of Revolcaderos,
Durango, approximately 6600 feet, 29 July 1961.

_Diagnosis._--A species of _Tomodactylus_ possessing the
following combination of characters: (1) tips of two outer
fingers truncate, about twice width of narrowest part of
digit; (2) tympanum small, less than one half diameter of
eye; (3) ventral surfaces smooth; (4) contrasting marbled
pattern on back and top of head, and (5) venter whitish,
lacking dark marks.

_Description of holotype._--Adult male; snout-vent length,
31.5 (measurements are in millimeters and were taken by means
of dial calipers reading to one tenth of a millimeter); width
of head, 11.2; length of head, 10.3; horizontal diameter of
eye, 3.1, and of tympanum, 1.2; distance from eye to nostril,
3.8; internarial width, 2.9; interorbital width, 4.1; width
of eyelid, 2.5; lumbar gland (left side), 7.0 x 2.6; distance
from axilla to groin, 15.2; tibial length, 12.7; length of
foot, 13.1.

Head slightly wider than body; tip of snout rounded, slightly
truncate; canthus rounded; tympanum small, less than one half
diameter of eye; tympanum having posterior margin
ill-defined, separated from eye by distance about equal to
diameter of tympanum; diameter of eye slightly less than
distance from eye to nostril; width of eyelid about two
thirds interorbital width; paratoid gland indistinct; lumbar
glands high, separated from insertion of leg by about one
millimeter; back and sides of body having low, scarcely
elevated pustules; top of head, limbs and venter smooth; few
low, whitish pustules below and behind tympanum, and low on
sides of body; posterior surface of thighs and anal region
pustulate; one pair of whitish postanal spots; ventral disc
attached near insertion of legs, lacking conspicuous
transverse fold; skin loose on throat, chest and abdomen.

Digits not webbed; tips of