A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico

A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico

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Excerpt: ...Museum of Natural History KU University of Kansas Museum of Natural History MCZ Museum of Comparative Zoology, Harvard College UIMNH University of Illinois Museum of Natural History UMMZ University of Michigan Museum of Zoology USNM United States National Museum Gymnopis mexicanus mexicanus Dumeril and Bibron Oaxaca: El Barrio (3); Matias Romero; Tehuantepec (2). Veracruz: Cosamaloapan; Cuatotolapam (2). The two specimens from Cuatotolapam were collected by Ruthven in an area of mixed savanna and forest. The three specimens (USNM 30535-7) listed above from El Barrio were collected by Sumichrast; possibly they came from another locality. The city of Tehuantepec is divided into seven districts called "barrios." The two specimens listed from Tehuantepec (MCZ 1604) merely bear the data "Tehuantepec, Mexico." They may have come from the town, the district, or from anywhere in the isthmus. The specimen from Matias Romero has 109 primary and 67 secondary annuli, a length of 400 mm., and a diameter of 19 mm.; the one from Cosamaloapan has 106 primary and 58 secondary annuli, a length of 397 mm., and a diameter of 19 mm. Data on the other specimens were recorded by Dunn (1942:475). Bolitoglossa occidentalis Taylor Oaxaca: Rio Sarabia (2); Ubero. Veracruz: La Oaxaquena; 14 km. E of Suchil. The specimens from Oaxaca are only tentatively assigned to occidentalis. All are immature and lack maxillary teeth. Taylor (1941:147) stated that the maxillary teeth are absent in young occidentalis. One from Rio Sarabia is a male with a body-length of 29 mm. and a tail-length of 22 mm. The dorsum is reddish brown Pg 50 streaked with dark gray; the venter is dark gray. Two small individuals (one from Sarabia and one from Ubero) have body-lengths of 19 and 21 mm. and tail-lengths of 10.5 and 11 mm. In life they were pale yellowish tan above with a brown triangular mark on the occiput, but with no middorsal stripe. Both were found in the axils of elephant ear plants...show more

Product details

  • Paperback | 28 pages
  • 189 x 246 x 2mm | 68g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236729455
  • 9781236729453