The Amphibians and Reptiles of Michoacán, MéxicoDuellman, William Edward
Science
The Amphibians and Reptiles of Michoacán, México
Duellman, William Edward
Amphibians -- Mexico -- Michoacán de Ocampo; Reptiles -- Mexico -- Michoacán de Ocampo
All of the specimens have 17 rows of scales; four males have 169-178
(174.2) ventrals and 102-111 (106.8) caudals; two females have 192 and
195 ventrals and 96 and 87 caudals. Three individuals have one
postocular on one side and two on the other; in the other specimens
there are two postoculars on each side. The largest male has a body
length of 232 mm. and a tail length of 130 mm.; the largest female has a
body length of 274 mm. and a tail length of 119 mm.
~Geagras redimitus~ Cope
_Geagras redimitus_ Cope, Jour. Acad. Nat. Sci.
Philadelphia, ser. 2, 8:141, 1876.
San Juan de Lima (2).
Previously this species was known definitely only from the Plains of
Tehuantepec, Oaxaca. _Sphenocalamus lineolatus_ was described by Fischer
(1883:5) from Mazatlán; this name has been placed in the synonymy of
_Geagras redimitus_ Cope. Although Fischer gave the type locality only
as "Mazatlán" and did not designate the state, it is probable that the
type originated from Mazatlán, Sinaloa. The present specimens are from a
locality almost midway between Tehuantepec and Mazatlán and support the
possibility that _Geagras_ ranges along the Pacific coast of México from
Oaxaca to Sinaloa.
The two specimens from Michoacán (UMMZ 114446-7), both males, have 118
and 122 ventrals, 31 and 33 caudals, body lengths of 108 and 81 mm., and
tail lengths of 20 and 15 mm. Both have 1-1 preoculars, 1-1 postoculars,
1-2 temporals, 6-6 upper labials, and 5-5 lower labials. In life, the
dorsum was pale tan; the top of the head and the middorsal and lateral
stripes were dark brown; the belly was white. The occipital spots were
pale pinkish tan. Both specimens were found beneath rocks in tropical
semi-deciduous forest at an elevation of 15 meters on the coastal plain.
~Geophis dugesi~ Bocourt
_Geophis dugesii_ Bocourt, Miss. Scientifique au Mexique et
dans l'Amerique Centrale, Rept., livr. 9:573,
1883.--Tangancícuaro, Michoacán, México.
Carapan; Tangancícuaro; Zacapu.
Aside from the three specimens listed above, there are two (SU 4407-8)
bearing the data "Michoacán." Bocourt (1883:574) stated that the type
specimen from Tangancícuaro had six or seven pale cross-bands on the
anterior part of the body. An illustration, presumably of the same
specimen, by Dugès (1884:Pl. 9) shows five distinct and one indistinct
cross-bands. Of the four specimens that I have examined, none has more
than three pale cross-bands, and one has only one indistinct cross-band.
Two females have 154 and 158 ventrals and 38 and 37 caudals; two males
have 150 and 151 ventrals and 43 and 42 caudals.
This species is known only from elevations between 1750 and 2050 meters
on the southwestern edge of the Mexican Plateau in the state of
Michoacán.
~Geophis incomptus~ Duellman
_Geophis incomptus_ Duellman, Occ. Pap. Mus. Zool. Univ.
Michigan, 605:3, May 29, 1959.--Dos Aguas, Michoacán,
México.
Dos Aguas (15).
Public-domain text, read in full here on John Shaqi.
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