Ryukyu green snake – Reptiles of Okinawa by Shawn Miller

The Ryukyu Green snake (Cyclophiops semicaricartus) 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 semicaricartus
  • 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)

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)

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

The snakes are sometimes found crossing the road a night.

 Ryukyu Green snake (Cyclophiops semicaricartus)

Ryukyu Green snake (Cyclophiops semicaricartus)

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

Road Kill - Ryukyu Green snake (Cyclophiops semicaricartus)

Road Kill – Ryukyu Green snake and beetles

Have a great day – Shawn 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.