The King of the Yanbaru forest – Holst’s frog

The Holst’s frog ( Babina holsti ) is a rare species found  in northern Okinawa. It is currently listed endangered on the IUCN red list. It is designated as a natural monument by the Okinawa Prefecture.  This large amphibian is decreasing in numbers due to habitat loss.

  • Scientific name: Babina holsti (Boulenger, 1892)
  • Distribution:  Northern Okinawa-Japan
  • Habitat:  Forest streams 
  • Diet:  Insects, worms, snails and small reptiles
  • Average Size:  100mm -125mm
IMG_0890

The King- Holst’s frog

The Holst’s frog is the largest frog found on Okinawa. It hides in holes, crevices and small caves in the day.

Searching for food

Searching for food

This is a size comparison photograph taken with the iPhone 6s. This is a good size frog but they do get larger than this.

Comparison - Iphone6s

Comparison – Iphone6s

The juveniles have a dark brown patch on the top section of the body. They blend in very well with their habitat.

Juvenile Holst's frog

Juvenile Holst’s frog

They are sometimes found searching for food on the back roads of Northern Okinawa.

Juvenile Holst's frog - Yanbaru

Juvenile Holst’s frog – Yanbaru

Be careful and pay close attention to crossing wildlife! 

Crossing wildlife

Crossing wildlife

 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.

Venomous snakes of Okinawa-Japan

Okinawa has three species of pit vipers and one coral snake. These venomous snakes are commonly found in the jungle. They are sometimes found in neighborhoods and local parks at nighttime during the summer season. Majority of the snake bites that I am familiar with happened on neighborhood night walks or harvesting sugar cane.  I have seen pit vipers on public roads at night, on sidewalks, crawling on fences, on rock walls, in drainage ditches and inside vending machines.

Habu in vending machine

Drink machine – Photo by Leia Heider

The Okinawan Habu is the largest and most venomous pit viper found on Okinawa.

  • Scientific name: Protothrops flavoviridis
  • Common name: Okinawan or golden habu
  • Habitat: Rock walls, caves, tree lines, parks, farming fields and near fresh water
  • Diet: Mice, rats, shrews, bats, and birds
  • Average size: 100-200cm
Okinawan Habu (Trimeresurus flavoviridis)

Okinawan Habu (Trimeresurus flavoviridis)

Fangs of the Okinawan Habu

Fangs of the Okinawan Habu

Okinawan habu -Northern Okinawa

Okinawan habu -Northern Okinawa

Okinawan Habu on a fence

Okinawan Habu on a fence -WAM perspective

Okinawan Habu- MYN field studio technique

Okinawan Habu- MYN field studio technique

The silver habu is scarce on Okinawa. I have only found one live specimen. I didn’t realize what I found until I viewed the images on the computer,

Iphone snapshot

Silver habu

Silver habu- eyes of silver

Silver habu- eyes of silver

Albino Habus are worshiped in Okinawa.

Albino Habu snake

Albino Habu snake

Okinawa is famous for its Habu Sake. They say it helps with sexual dysfunction in men.

Habu sake - Trimeresurus flavoviridis

Habu sake – Trimeresurus flavoviridis

The Taiwanese Habu was introduced to Okinawa in the 1970’s. They were imported for exhibitions and medical purposes. Somehow a few escaped and have populated the Island.  I have seen over a dozen on my night hikes near Ryukyu Mura in Onna village.

  • Scientific name: Protothrops mucrosquamatus
  • Common name: Taiwanese habu or Brown spotted pit viper
  • Habitat: Rock walls, trees, and caves
  • Diet: Frogs, bats, mice, and birds
  • Average size: 80-150cm
Taiwanes habu- Onna village

Taiwanes habu- Onna village.  Ready to strike!

Taiwanese habu-

Taiwanese habu- patiently waiting for a frog

Taiwanese habu -Onna village, Okinawa

Taiwanese habu -Onna village, Okinawa

Taiwanese habu- neighborhood at night

Taiwanese habu- neighborhood at night

The Princess habu is the most common venomous snake on Okinawa. It is the smallest of the pit vipers found here.

  • Scientific name: Ovophis okinavensis
  • Common name: Princess habu or Hime habu
  • Habitat: Rivers, ponds, creeks and runoff ditches.
  • Diet: Mainly frogs
  • Average size: 40-80cm
Princess habu -Yanbaru

Princess habu -Yanbaru forest

Large Princes habu- Yanbaru

Large Princes habu- Yanbaru

Golden Hime habu

Golden Hime habu

Princess habu -MYN technique

Princess habu -MYN technique

Princess Habu- Stella 2000

Princess Habu- Stella 2000

Princess habu - Northern Okinawa

Princess habu – Northern Okinawa

The Okinawan coral snake is extremely rare.  I have only seen two specimens

    • Scientific name: Sinomicrurus japonicus boettgeri
    • Common name: Okinawan coral snake
    • Habitat: Forest areas in northern Okinawa
    • Diet: blind snakes and small lizards
  • Average size: 30-60cm

photograph

Ways to avoid injury!

  • Avoid catching or handling venomous snakes
  • Wear exposure protection, such as snake boots when exploring the forest at night.
  • Bring a flashlight on night walks in the neighborhood

IMG_3611

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 below.

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