ansas Sci.
Bull., 26:501, November 27, 1940.

Cascada Tzararacua (6); 21 km. W of Ciudad Hidalgo; 29 km. E
of Morelia; Puerto Hondo; San Jose de la Cumbre (13);
Uruapan (2); Zitacuaro.

Of six specimens from Cascada Tzararacua, five are colored like typical
_M. hobartsmithi_, having the anterior and posterior surfaces of the
thighs and the upper arms pale pink in life and a grayish brown dorsum
in preservative. The other specimen (UMMZ 94231) has in preservative a
dark brown dorsolateral line on each side enclosing a pale tan area that
extends from the snout to the vent. One specimen from 29 kilometers east
of Morelia (UIMNH 40338) and 13 specimens from San Jose de la Cumbre
(UMMZ 102111) do not have the prominent tarsal tubercles characteristic
of _M. hobartsmithi_. Also, in these fourteen specimens the palmar
tubercles are larger, and the dark anal patch more distinct, than in
typical _M. hobartsmithi_. Possibly these specimens, which are from the
high mountains in the eastern part of Michoacan, represent another
species of _Microbatrachylus_. However, Taylor (1940d:501) reported a
series of _M. hobartsmithi_ from the mountains 10 miles west of Villa
Victoria in the western part of the state of Mexico.

The largest specimen from Michoacan is a gravid female (UIMNH 16104)
having a snout-vent length of 23.5 mm.

_Microbatrachylus hobartsmithi_ has been found in rocky ravines along
streams in the Cordillera Volcanica and the southwestern escarpment of
these mountains at elevations from 1450 to 2750 meters.

~Microbatrachylus pygmaeus~ (Taylor)

_Eleutherodactylus pygmaeus_ Taylor, Trans. Kansas Acad.
Sci., 39:352, 1937.--1 mile north of Rodriguez Clara,
Veracruz, Mexico.

_Microbatrachylus pygmaeus_ Taylor, Univ. Kansas Sci. Bull.,
26:500, November 27, 1940.

_Microbatrachylus albolabris_ Taylor, Univ. Kansas Sci.
Bull., 26:502, November 27, 1940.--2 miles west of Cordoba,
Veracruz, Mexico.

_Microbatrachylus minimus_ Taylor, Univ. Kansas Sci. Bull.,
26:507, November 27, 1940.--Agua del Obispo, Guerrero,
Mexico.

_Microbatrachylus imitator_ Taylor, Univ. Kansas Sci. Bull.,
28:70, May 15, 1942.--La Esperanza, Chiapas, Mexico.

Arteaga (328).

This large series (UMMZ 119247-8) was collected on June 22 and 23, 1958,
before the onset of the heavy summer rains. The frogs were found in a
shaded ravine at the north edge