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Frogs and Toads of Mexico

Toads

Colorado River toad

TOAD

Sonoran green toad

Anaxyrus_retiformis,I_JDW149

Mexican burrowing toad

Rhinophrynus dorsalis (Burrowing toad, Mexican burrowing toad)

Great Plains Toad
Plateau Toad
Green Toad
Arroyo Toad
Gulf Coast toad
dwarf toad
coastal plains toad
Jeweled Toad
Mexican narrow-mouthed toad
mountain toad
two-spaded narrow-mouthed toad
plains spadefoot toad

Frogs

Fleischmann’s glass frog

Hyalinobatrachium_fleischmanni01a

bromeliad tree frog
California red-legged frog
California tree frog
Chamula mountain brook frog
Chiricahua leopard frog
cloud forest stream frog
Craugastor alfredi
Craugastor augusti
Craugastor batrachylus
Craugastor berkenbuschii
Craugastor greggi
broad-headed rainfrog
Craugastor loki
Craugastor megalotympanum
Craugastor mexicanus
Craugastor pygmaeus
Craugastor taylori
Craugastor vulcani
Ecnomiohyla valancifer
Rio Grande Chirping Frog
Spotted Chirping Frog
Eleutherodactylus dixoni
Eleutherodactylus rubrimaculatus
foothill yellow-legged frog
Forrer’s grass frog
Rio Grande leopard frog
spotted chorus frog
greater bromeliad tree frog
Guatemala plateau frog
Guerreran leopard frog
Guerreran stream frog
Hyla arboricola
canyon tree frog
Barber’s sheep frog
Lago de las Minas frog
large-crested toad
Lemos-Espinal’s leopard frog
Mexican white-lipped frog
Lithobates brownorum
big-footed leopard frog
Lowland Leopard Frog
Mexican cascades frog
Montezuma leopard frog
Morelet’s tree frog
Northwest Mexico leopard frog
Zweifel’s frog
túngara frog
transverse volcanic leopard frog
Tlaloc’s leopard frog
Tarahumara frog
common Mexican tree frog
Sierra Madre frog
Sierra Juarez brook frog
Schultze’s stream frog
Schmidt’s mountain brook frog
Northwest Mexico leopard frog
Rio Grande leopard frog
Puebla frog
Ptychohyla zophodes
warty mountain stream frog
Plectrohyla psarosema
Plectrohyla cyclada
Patzcuaro frog
thorny spikethumb frog
Plectrohyla guatemalensis

Wyoming Toad (Anaxyrus baxteri)

EW

The Wyoming Toad (Anaxyrus baxteri) or Baxter’s toad is a toad native to the United States specifically Wyoming. Sadly the toad can rarely be seen in the wild anymore besides the Mortenson Lake National Wildlife Refuge in Wyoming. Its a member of the family Bufonidae, the true toad family. The Wyoming toad is the most endangered amphibian in North America.

In 1980, scientists determine that there was only 25 of these toads left in the wild. They took some of the toads for a captive breeding program and have been working on restoring the population. Problems are that Chytrid fungus as been identified in the native habitat of the toads, killing them off.

(image courtesy of U.S. Fish and Wildlife Service)

Paradoxical frog (Pseudis paradoxa)

paraleastconcernParadoxical frog (Pseudis paradoxa) is a member of the genus Pseudis, the swimming frog genus in the tree frog family, Hylidae. They are found in Argentina, Bolivia, Brazil, Colombia, French Guiana, Guyana, Paraguay, Peru, Suriname, Trinidad and Tobago, and Venezuela.

The frogs reach sizes of 1.7 to 2.5 inches but they have been known to get 2.9 inches long. What makes the Paradoxical frog interesting is that the tadpoles are bigger than the adult frogs. Tadpoles reach sizes of up to 7.8 inches long, roughly 3-4 times larger.

tadhttps://www.youtube.com/watch?v=mp4RY2nxous

(images from http://www.itsnature.org/sea/other/paradoxical-frog/ and reddit)

Common Frog (Rana Temporaria)

Grasfrosch-Rana-temporaria-adultleastconcernThe Common Frog (Rana Temporaria) is a member of the true frog family, Ranidae. They are found throughout most of Europe. They grow between 2.4 – 3.5 inches long. The frogs reproduce from March to late June and lay 670-4500 per clutch. After the frogs breed, the parents both go their separate way and leave the eggs by themselves.

(image from Wikipedia)

Giant leaf frog (Phyllomedusa bicolor)

green-leaf-frogleastconcern

The Giant leaf frog  (Phyllomedusa bicolor) is a member of the tree frog family, Hylidae. They are found in the rain forest in South America specifically the countries of  Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela.

The females of the species grow larger than the males, reaching 4.3 – 4.7 inches long while the males only reach 4.05 inches long. The frogs spend their lives in the trees and even reproduce there. They lay their eggs on leaves of trees that over hang the water. After 8 days, the eggs drop into the water.

The Giant leaf frog contains some interesting peptides. They are  deltorphin,  deltorphin I, deltrophin II, and dermophin. They are natural opioids that are 30-40 times more potent that morphine and are theoretically be less likely to produce drug tolerance and addiction.

(credit to http://seancrane.com/galleries/bolivia for the image)

Ornate Frog (Hildebrandtia ornata)

p306538307-3leastconcernOrnate Frog (Hildebrandtia ornata) is a frog of the family Ptychadenidae, or the grassland frogs. They have been found in Senegal, Gambia, Mali, Ivory Coast, Ghana, Togo, Cameroon, R.D. Congo, Central African Republic, Somalia, Ethiopia, Kenya, Tanzania, Malawi, Zambia, Zimbabwe, Mozambique, South Africa, Namibia, and Angola. The ornate frog tadpoles feed on each other.

Green and Black Dart Poison Frog (Dendrobates auratus)

Dendrobates auratus, Green and black poison dart frog, Family Dendrobatidae, La Selva, Costa Rica-4676leastconcernGreen and Black Dart Poison Frog (Dendrobates auratus) is a poison dart frog from the family Dendrobatidae. They are native to Colombia, Costa Rica, Nicaragua, and Panama. They were introduced in Hawaii in the 1930’s to help control mosquito population.

Females reach sizes of 1.65 inches long while males are smaller. There are variations in the color from white, green, and blue. The frogs are active during the day, feeding on insects. They are great climbers, climbing up to almost 50 yards high. During breeding season, females wrestle other females and chase them out of their territory. The males visit the nest of eggs to provide water, get rid of fungus, and to rotate the eggs.