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

AMPHIBIANS AND REPTILES OF SINTALOA, MEXICO 139
scales; 52, 52 scales around midbody, and snout-vent lengths of 59
and 70, respectively. Two males have 33, 32 femoral pores; 48, 47
dorsal scales; 52, 53 scales around midbody, and snout-vent lengths
of 74 and 36, respectively. One female has a grayish white belly
and the other has a faint bluish white belly without lateral patches
of color. The smaller of the two males has pale blue lateral belly
patches that are edged with gray medially and slightly separated
by a creamy white area about one and one half to two scales wide.
The larger male has pale blue belly patches edged with black and
in contact medially. Three of the lizards have brown or tan sides
but the larger male has pale blue mottling on the otherwise brown
sides. The scales on the posterior surface of the thighs of the large
male are definitely keeled, but those of the females are less strongly
keeled. The other male (smallest specimen) lacks keels on the
posterior surface of the thigh.
Two of these specimens were collected in pine-oak forest in
August.
Distribution in Sinaloa.—Southern pine-oak forest between 1800
and 2000 m. See Fig. 49.
Specimens examined.—5 km. SW ElPaLnito, 1850 m. (•KU 75583); 13
km. W El Palmito, 1850 m. ("KU 63705); 19.2 1cm. NE Santa Lucia, 1940 m.
(°KU 78692-93).
Sceloporus utiformis Cope
Sceloporus utiformis Cope, Proc. Acad. Nat. Sci. Philadelphia, p. 177, 1864
(type locality, Colima, Colima).
Remarks.—Three females and one male have the following characteristics,
respectively: rows of lorilabials below center of eye 1-1,
2-2,1-2, ; dorsals 43,45,50,47; snout-vent 49, 33,63,41; tail length
116 (KU 44866 only); femoral pores 31, 32, 30 (excluding KU
44866). In all specimens the frontoparietals are separated by an
azygous scale, which also separates the frontal and interparietal.
Another azygous scale separates the prefrontals; the posterior frontal
is divided longitudinally on all specimens. One female (KU 44868)
has the frontal and interparietal in contact on the right but separated
on the left by an azygous scale. The preanal scales of the two larger
females are keeled, but those of the smallest female and the male
are smooth. Other characters are in general agreement with those
given by Smith (1939c:325-29). One female has a tail length of 116
and snout-vent/tail ratio of 0.42,
One female (KU 80732) taken on October 25, 1963, contains six
eggs which measure 7 X 10 to 8 X 12 mm. Another specimen (KU