Ryukyu Brown Frog – Amphibians of Okinawa by Shawn Miller

The Ryukyu Brown frog (Rana ulma) is found throughout the Ryukyu Islands. It is listed as an endangered species on the IUCN list of threatened species. Some of the most beautiful frogs are found on Kume Island.

  • Scientific name: Rana ulma – Synonym Babina okinavana
  • Common name: Ryukyu Brown Frog
  • Distribution: Ryukyu Islands
  • Habitat: Forests, mountain slopes, drainage ditches, and farm fields.
  • Diet: Insects
  • Average size: 45mm-65mm
  • Color: brownThe Ryukyu Brown Frog is found in northern Okinawa. The Yanbaru forest is a wildlife protected area.
Wildlife protection area -Yanbaru forest

Wildlife protection area -Yanbaru forest © Shawn Miller

They blend in very well with the leaf litter, rocks, and the surrounding grass.

Rana ulma Ryukyu brown frog

(Rana ulma) Ryukyu brown frog © Shawn Miller

Ryukyu Brown frog (Rana ulma)

Ryukyu Brown frog (Rana ulma) © Shawn Miller

Ryukyu Brown frog (Rana ulma) © Shawn Miller

Ryukyu Brown frog (Rana ulma) © Shawn Miller

Amami brown frog (Rana Kobai)

Rana ulma Tokuno Island

Rana kobi- Tokuno Island © Shawn Miller

Mating season is during the winter months.

Ryukyu Brown frog mating

Ryukyu Brown frog mating -Kume, Island © Shawn Miller

A wide-angle perspective of the small brown frog.

Rana ulma - Wide angle macro

Rana ulma – Wide angle macro © Shawn Miller

Pay attention to crossing wildlife. Frogs are often found on the road searching for insects

Bright orange Ran ulma

Bright Orange Rana ulma © Shawn Miller

Rana ulma - crossing the road

Rana ulma – crossing the road © Shawn Miller

People often ask me what is the purpose of conservation photography? Having the ability to affect some form of positive change in the environment and make a global difference with the photographs. Hopefully, the images will inspire people to care more about nature and make a positive difference in the environment.

 My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

This site is also designed to help people identify the beautiful animals of Okinawa, basically  to serve as an online nature reference guide. If you would like to make a contribution to support my mission, please click on the donation link  paypal.me/maketheswitch4nature

Your donations will help worldwide conservation initiatives as well as bring solutions to the worldwide pollution issues on our beautiful shorelines.  Thank you for your support.  Shawn M Miller.

Ryukyu green snake – Reptiles of Okinawa by Shawn Miller

The Ryukyu Green snake (Cyclophiops semicarinartus)

is a non-venomous snake found throughout the Ryukyu Islands They are fairly common here on Okinawa. I often find them in the Yanbaru forest. They are harmless and pose no threat to your safety.

    • Scientific name: Cyclophiops semicarinartus
    • Local name: Ryukyu Ao Hebi – Ryukyu Green snake
    • Distribution:  Ryukyu Islands
    • Habitat:  Forests and grasslands
    • Diet:  Earth worms
    • Average size:  60cm -80cm
  • Color:  Olive green with a yellow belly
 Ryukyu Green snake (Cyclophiops semicaricartus)

Ryukyu Green snake (Cyclophiops semicaricartus) © Shawn Miller

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Ryukyu Green snake closeup

There’s a snake on my snake boot! I highly recommend wearing snake boots while herping in northern Okinawa.  Check out my post on venomous snakes of Okinawa for more info.

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Snake boot – Ryukyu Green snake (Cyclophiops semicaricartus) © Shawn Miller

A juvenile Ryukyu green snake interested in the Canon 100mm 2.8 lens.

Ryukyu snake on the Canon 100mm macro lens

Ryukyu snake on the Canon 100mm macro lens © Shawn Miller

The snakes are sometimes found crossing the road a night.

Head shot- Ryuyu Green snake

Headshot- Ryuyu Green snake © Shawn Miller

Ryukyu Green snake (Cyclophiops semicaricartus)

Ryukyu Green snake – Amami Island

 Ryukyu Green snake (Cyclophiops semicaricartus)

Ryukyu Green snake (Cyclophiops semicaricartus) © Shawn Miller

My son holding a juvenile Ryukyu Green snake. This friendly snake was on display to educate the youth.  Yanbaru Wildlife Center.

Ryukyu Green snake

Ryukyu Green snake

The  Ryukyu Green snake feeds on earthworms, no need to kill it.

Road Kill - Ryukyu Green snake (Cyclophiops semicaricartus)

Road Kill – Ryukyu Green snake and beetles © Shawn Miller

My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

This site is also designed to help people identify the beautiful animals of Okinawa, basically to serve as an online nature reference guide. If you would like to make a contribution to support my mission, please click on the donation link paypal.me/maketheswitch4nature

Your donations will help worldwide conservation initiatives and bring solutions to the worldwide pollution issues on our beautiful shorelines.  Thank you for your support.  Shawn M Miller.

The Hallowell’s tree frog – Okinawa

The Hallowell’s tree frog ( Hyla hallowellii ) is found on Okinawa, Amami and Tokunoshima Island.

  • Scientific name: Hyla hallowellii
  • Common name: Hallowell’s tree frog
  • Distribution: Ryukyu Islands
  • Habitat: Forests, grassy areas and farm fields near water.
  • Diet: Insects
  • Average size: 30mm-40mm
  • Color: Bright green with a white belly

The Hallowell’s tree frog is fairly common but not often seen.  The beautiful frog lives high above the ground in trees making it difficult to find and photograph.

The Hallowell's tree frog

The Hallowell’s tree frog

They are easy to locate during mating season. The male produces a fairly high pitch squeak sound over and over.

The Hallowell's tree frog

The Hallowell’s tree frog -vocal sac

The Hallowell's tree frog

The Hallowell’s tree frog -mating call

The Hallowell's tree frog

The Hallowell’s tree frog

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Let’s protect the wildlife of the Ryukyu Islands.

 My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

This site is also designed to help people identify the beautiful animals of Okinawa, basically  to serve as an online nature reference guide. If you would like to make a contribution to support my mission, please click on the donation link  paypal.me/maketheswitch4nature

Your donations will help worldwide conservation initiatives as well as bring solutions to the worldwide pollution issues on our beautiful shorelines.  Thank you for your support.  Shawn M Miller.