The Amphibians and Reptiles of Sinaloa, Mexico - Smithsonian ...

194 UNIVERSITY OF KANSAS PUBLS., MUS. NAT. HIST,
from southern Sonora as different from other species of Pseudoficima
by having light dorsal spots two or more scales wide, eight infralabials,
and a double line across the frontal region. Campbell and
Simmons (1962:196) reduced hiltoni to subspecific rank based on
one specimen from near Espinal that was apparently intermediate
between frontalis and hiltoni.
Additional specimens from Sinaloa clarify the relationships between
the nominal populations. Analyses of ten characters (Table
6) show a complete overlap in all characters throughout the range
of the species. These data do not support the subspecific arrangement
suggested by Campbell and Simmons (1962:197). We suggest
that Pseudoficimia frontalis hiltoni be placed in the synonymy
of P. frontalis, which is monotypic as now understood. The first
author currently is evaluating the validity of P. pulcherrima and
reviewing the generic relationship of Pseudoficimia. All specimens
were found at night on the highway.
Distribution in Sinaloa.—Occurs throughout the lowland thorn
forest and tropical deciduous forest of the state. See Fig. 80.
Specimens examined.—30 mi. SSE Alamos [Sonora] (* FAS 9168); 4 mi. NE
Cbncordia ("LACM 7040); 26 mi. N Culiacan (* CSCLB 1384); 4 mi. S
Culiacan (• AMNH 75753); 34.4 mi. N Elota, Rio (°LACM 7043); 11.5 mi.
N Espinal (• UCLA 14644); 0.8 mi. S Guamuchil ('LACM7046); Guirocoba
[Sonoia] (• AMNH 63717, holotype of P. hiltoni); 12.8 mi. N Mazadan (" UAZ
16308); 16 mi. N Mazatlan ('LACM 7042); 17.9 mi. N Mazatlan (°LACM
7044); 18 mi. N Mazatlan (" LACM 7045); 18.3 mi. N Mazatlan ("LACM
7041); 61 km. N Mazatlan (»KU 73617); 125 km. NNW Mazatlan (• KU
73618); Colima [state] (* USNM 31424, paralectotype and 31425, lectotype).
Literature record.—Presidio (Boulenger, 1894:270; Taylor and Smith, 1942:
243).
Additional record.—6.8 mi. N Elota, Rio (SU 24022).
Rhadinaea hesperia hesperioides Smith
Rhadinaea hesperia hesperioides Smith, Proc. Biol, Soc. Washington, 55:186,
December 31, 1942 (type locality, Magdalena, Jalisco).
Remarks.—Three specimens {a male, female, and one of unidentified
sex) have 154, 149, 153 ventrals; 110, 122 subcaudals (excluding
KU 80870); ?-17-17, 17-17-17, 18-17-17 dorsal scale rows; 9-8, 8-8,
8-8 supralabials; and 10-10, 10-9 infralabials (excluding KU 80870).
The preoculars are 2-2, postoculars 2-2, temporals 1+2; labials 4-5
enter the eye on all specimens except the male (KU 80870), which
was damaged.
Distribution in Sinaloa.—Tropical deciduous forest of the southern
highlands and foothills. See Fig. 81.
Specimens examined.—Santa Lucia (*KU 75629); 19.2 km. (via hvey. 40)