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

AMPHIBIANS AND REPTILES OF SINALOA, MEXICO 147
individuals were juveniles, but adults predominated in July (Scott,
1962:27).
Distribution in Sinaloa.—Southern part of state, intergrading with
C. c. mazatlanensis in an area a few kilometers south of Mazatlan.
See Fig. 55.
Specimens examined.—1 km. S Concepci6n, 76 m. (° KU 63715-25); 7 mi.
SW Concordia (• KU 33810); 5 km. NW Escuinapa, 150 m. ( 8 KU 73755-59);
5.4 mi. NW Escuinapa (JMS osteo. coll.; LACM 6733-41}; Isla Palmito del
Verde, middle (• KU 73760) j Isla Palmito de la Virgen, 5 m, (° KU 73750-51);
7.3 km. SW Matatan, 155 m. ("KU 78788-92); Palmillas (LACM 6761);
Rancho Huanacasde (LACM 6742-56); Rosario, 150 m. ( e KU 73752-54);
Santa Lucia, 1100 m. (*KU 75607); Teacapan (LACM 6763-64); 2 mi. SE
Teacapan (LACM 6762); 1 ml. S, 26 mi, E Villa Union (CSCLB 2045-49,
2062-64).
Literature records.—Chele, about 300 ft,; Concordia (Zweifel, 1959a:89);
7 mi. SW Concordia (Chrapliwy and Fugler, 1955:126); 10 mi. W Concordia;
Escuinapa; 16 mi. SE Escuinapa; 7 mi. NNW Escuinapa; 1.5 mi. W La Concha;
Flomosas; 7 mi. WNW Rosario (Zweifel, 1959a:89).
Additional records.—19.4 mi. SE Escuinapa (UIMNH 6828-29); 17.5 mi.
S Escuinapa (FAS 16894-98); 11 mi. N, 1.5 mi. E Mazatlan (UMMZ 119471);
Presidio (UIMNH 19962; EHT-HMS 684-88); 10 mi. S Presidio (EHT-HMS
535-51); Rosario, 250 ft. (UIMNH 82754; USNM 47670): 3 mi. SE Rosario
(UIMNH 6830-32).
Cnemidophorus costatus mazatlanensis Zweifel
Cnemidophorus sacfo mazatlanensis Zweifel, Bull. Amer. Mus. Nat. Hist,,
117:89, April 27, 1959 (type locality, two miles north of Coyoutan,
Sinaloa).
Cnemidophorus costatus mazatlanensis: Duellman and Zweifel, Bull. Amer.
Mus. Nat. Hist., 123:181, February 26, 1962.
Remarks.—This subspecies is discussed by Zweifel (1959a:89-93),
Thirty specimens have 34-50 (38.5) femoral pores (excluding
KU 29749); 190-240 (216.5) granules from occiput to rump {excluding
KU 29736); 85-117 (98.5) granules around the body
(GAB) at ventral 15 from axilla; 8-17 (13.3) granules between
paravertebral stripes (PV) (excluding KU 78794); and are 43-103
(71.2) mm. in snout-vent length. The PV/GAB ratio is 0.90-0.179
(0.135) for 29 specimens. Seven lizards (snout-vent lengths of
59-91 ram.) have pattern I {Zweifel, 1959a:66-67), 14 (43-82 mm.)
have pattern II, seven (58-91 mm.) have pattern III, one (90 mm.)
has pattern TV, and one (89 mm.) has pattern V. The circumorbital
scales contact the frontal in three specimens and do not reach the
frontal in 27.
Five specimens (KU 75608-12) from five kilometers southwest of
El Palmito, Durango (in Sinaloa) are unquestionably of pattern I;
the belly is without black markings in three and with moderate
black markings like huico and mazatlanensis in two; one has a