Photographs

*Handling of Salamandrella keyserlingii is regulated by the Government of Kushiro-shi, Hokkaido Prefecture, Japan. Handling of Hynobius hidamontanus is also regulated by the Government of Hakuba-mura, Nagano Prefecture, Japan, and recently by the Government of Nagano Prefecture, Japan (by means of the Regulations of Conservation of Rare Wildlife, issued on 22 March 2005). All studies on the two hynobiids were conducted under the permission authorized by these governments.
Hynobius hidamontanus

Forest Floor (Habitat)

New Oviposition Site

Breeding Habitat & Egg Sacs

Oviposition Site

Major Breeding Habitat

Major Breeding Habitat 2

Snow in Hakuba Area

Wetland (Extinct Population?)

Breeding Fountain

Swamp (Wetland)

Wetland above Swamp

Breeding Pond in Wetland

Breeding Male & Egg Sacs

Aquatic-Phase Male & Female

Throat White Patch

Aquatic-Phase Female

Female Cloacal Opening

Rudimentary Fifth Toes

Egg Sacs

Egg Sacs with Striae

Egg Sacs at Open Area

Egg Sacs in Rapid Stream

Open Field for Breeding

Overwintering Larva

Communal Breeding Locations


Hynobius kimurae

Egg Sacs

Two Pairs of Egg Sacs

Development of Embryos in Egg Sacs

Development of Embryos in Egg Sacs 2

Terrestrial Male

Postbreeding Male

Oviposition Site & Egg Sacs

Overwintering Male in Torrent

Breeding Torrent

Overwintering Stream

Slopes for Migration & Wandering

Animal Tracks to Site

Fall Surveys

Juvenile & Snail

Descending Immigrant & Slope

Overwintering Locations

Compact pH-meter

Egg Sac Mass in Torrent

Overwintering Larvae


Hynobius lichenatus

Roadside Sites of Oviposition

Pond-Type Sites of Oviposition

Major Breeding Population

Egg Sacs

Body Sizes of Sympatric Species

Tail Vertebrae

Trunk Vertebrae

Shapes of Prevomerine Teeth

Pes Composition

Pes Variation

Skull Variation

Deformities


Hidden Male Hynobius nigrescens

Breeding Pond in March

Breeding Pond in July

Terraria

Voucher Specimens

Vasa Deferentia Fluctuation 1

Male Genital System

Vasa Deferentia Fluctuation 2

Male Ventral Glands

Testicular Lobules

Sexual Dimorphism in Vents

Testis-Ova

Female Body Shape

Ovulation & Egg Sac Formation

Ventral Gland Secretion

Female Genital System

Color Changes in Ovary

Gonadotropes

Typical Aquatic-Phase Male

Prolactin & Cutaneous Changes

Egg Sacs

Egg Sac Mass

Roadside Wetland

Fall Pond Basin in Sarukura

Hanging Egg Sacs

Bloody Egg Sacs

Foraging Activity

Absence of Left Forelimb


Onychodactylus japonicus

Roadside Ditches

Swamp (Wetland) with Two Hynobiids Mingled

Terrestrial Male

Aquatic Larvae

Habitat

Larvae of the Lungless Salamander


Salamandrella keyserlingii

Spawning Behavior

Terrestrial-Phase Male

Otanoshike-Ogawa River

Otanoshike Wetland

Spiraea salicifolia

Fen-Landscape

Road Construction

Pitfall-Trap

Tools for Toe-Clipping

Logs Harboring Siberian Salamanders

Terrestrial Female

Nylon Mesh Trap & Aquatic Animals

Body Size Measurements

Burrow Use by Salamanders

Rudimentary Fifth Toes

New Records

Siberian Salamander (Male)


Cynops pyrrhogaster

Newt Defensive Posture


Bufo japonicus formosus

Juvenile Toad

Orange Toad (Throat Region)

Orange Toad (Whole Body)

Female Toad Preyed

Toad Pairing

Summer Toad


Pseudepidalea raddei (formerly Bufo)

Male Toad


Hyla japonica

Nylon Mesh Trap & Metamorphosing Juvenile


Rana ornativentris

Juvenile Frog


Rana pirica

Bekambeushi Marsh

Habitats

Bear's Tracks


Zhangixalus arboreus (formerly Rhacophorus)

Mysterious Garden

Foam-Nests


Mongolia

Darhadyn Wetland

Darhadyn Wetland (Favorite Shot)

Russian Jeeps

Rubber Boat

White House Hotel

Screw-propelled Plane

Iron Ovens

Camp Site

Sight-seeing Areas of Ulaanbaatar

Pass Ovo (Ovoo, Oboo)

Mongolian Nomad

Edelweiss

Box Zartsaa

Deer Paintings

Frost

Edelweiss Hotel

Traffic Circumstances

Natural History Museum

2005 Membership of Darhadyn Wetland Project

Frost during August

Rainbow

Twilight

Aero Mongolia

Ovoo Worship in 2005

Golio

Camels

Lota lota

Taimen 1

Taimen 2

Yak

Outdoor Water Closet

Ovoo of Fountains

Renchinlhumbe

Sauna

Yurt

Handcrafted Baby Car

Rings in Pond

Running Horses

Ferris Wheel

Stone Circle

Poster Presentation

Mongolian & Russian Ladies

Japanese, Mongolian, & Russian Gentlemen

PIT-tags

Shaamar Members & Russian Jeep

Pond in Shaamar

Camp Site in Shaamar

Examination Tools

Examination Tools 2

Hedgehog

Campfire

Log House in Shaamar

Ovoo near Shaamar


Others

Kottaro Marsh

Hakuba Three Peaks

Hakuba Three Peaks 2006

Bear's Nail-Tracks

Fall Snow in Hakuba

Shin-kawa River

Sakata Lagoon

Toyota CALDINA Accident

Boxer Seon Okazawa

Sleeping Cat in Wooden Ship

Ukon-zakura Cherry Blossoms

Communally-owned cats in the Kajo-koen Park [New!]


*Many JPEG files were made with the resolution of 72 dpi, and then were converted to Progressive-display files.
Copyright 2002-2023 Masato Hasumi, Dr. Sci. All rights reserved.
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