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Three-striped Grass Frog

29 Mar

Hylarana macrodactyla

Three-striped Grass Frog Hylarana macrodactyla

Three-striped Grass Frog found in field in Khao Yai

Three-striped Grass Frog Rana macrodactyla

Three-striped Grass Frog from above, showing third stripe down middle of back.

Three-striped Grass Frog Hylarana macrodactyla

Three-striped Grass Frog from front

Three-striped Grass Frog Hylarana macrodactyla

Three-striped Grass Frog in Hong Kong (photo courtesy of Thomas Brown)

Long-toed Slender Frog Hylarana macrodactyla

Three-striped Grass Frog from Laos (photo courtesy of Thomas Calame)

Three-striped Grass Frog Hylarana macrodactyla

Front view of Three-striped Grass Frog (photo courtesy of Thomas Calame)

Three-striped Grass Frog Hylarana macrodactyla

Three-striped Grass Frog found in Hong Kong (photo courtesy of Wang Lijun)

English name: Three-striped Grass Frog (aka “Long-toed Frog”)
Scientific name: Hylarana macrodactyla (formerly known as Rana macrodactyla)
Thai name: Kob Lang keet

Description: To 5cm long. A small, slender frog with smooth skin and three gold stripes on the back. Body is green or brown. Dark spots can be found between the stripes. Head is long and narrow. Legs are long and especially slender. Underside is white.

Tadpoles are small and brown.

Call: A light chirp.

Similar Species: Green Paddy Frog is very similar in appearance, but is larger, slightly bulkier, and lacks the strips in the middle of the back.
Asian Grass Frog has ridges on the skin and lacks stripes on the sides.

Habitat: Found in lowland lakes, marshes, floodplains, rice paddies, and open grassy areas in forest. Appears to favor flooded fields and marshes with vegetation, rather than open water.

Contribution to the ecosystem: Helps control the populations of insects and spiders. Provides food for birds, snakes, large lizards, and fish.

Danger to humans: No danger to humans.

Conservation status and threats: The IUCN Red List lists the Three-striped Grass Frog as “Least Concern” due to its ability to tolerate a range of habitats and it large populations. However, it appears to have a scattered distribution.

Interesting facts: The scattered distribution of the Three-striped Grass Frog may be due to more specific habitat requirements than is currently known. Further study is important so that vital habitat can be preserved from draining and development. I have yet to find this species in the vicinity of Bangkok, which may only be the result of having not yet checked the correct habitat.

References:
The IUCN Red List: Hylarana macrodactyla
Wikipedia: Hylarana macrodactyla
Thailand Office of Environmental Planning and Policy: A Checklist of Amphibians and Reptiles in Thailand
A Field Guide to the Amphibians of Cambodia
Hong Kong Amphibians and Reptiles (2nd Edition)

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4 Comments

Posted by on March 29, 2012 in Frogs, True Frogs

 

Tags: , , ,

4 responses to “Three-striped Grass Frog

  1. supparod

    April 5, 2013 at 7:32 pm

    This frog is in my Bangkok garden, My garden is cat proof but This guy got in, its not easy as there are house extensions on all sides from my neighbors.

     
  2. Candy

    September 14, 2014 at 6:34 am

    I wld really like it if u wld send me an email. I wld really like to talk to u more about the three striped grass frog. I live in the United States in southeast Georgia. I live in the country deep in the woods on a dirt road with a lot of mud puddles. I absolutely love frogs and tend to move frogs from dangerous areas and take them home bc I have a frog pond. Last summer I found a tree frog that I had never seen before. It looks just like a regular green tree frog but it is grey and brown and looks more like a snakes skin. This summer I have come across a frog that looks exactly like the three striped grass frog. They are in the mud puddles on my road and I have recently found a few hanging out in my frog pond. I’ve been calling them pud muddles. When they sence danger they bury themselves in the mud and watch u. Or they hop away. Plz email me so that I can send u pics to see if u can confirm what this strange frog is. I’ve never seen one before this year.

     
    • marc

      September 15, 2014 at 11:41 pm

      Wow I never thought I would get a reply but I got one,
      Frogs are fairly easy to identify if you know your area and know whats supposed to be there however surprises happen,

      especially when frogs are capable to climb moving objects that are stationary like interprovincial trucks etc

       
    • Asian Herp Blogs

      September 28, 2014 at 6:42 pm

      Candy emailed me a picture of her “pud muddle” frog, and it appears to be a Southern Leopard Frog, Rana sphenocephala. The Georgia Museum of Natural History has a great site for native reptiles and amphibians in the area: http://naturalhistory.uga.edu/~GMNH/gawildlife/index.php?page=speciespages/list_species&class=Amphibia

       

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