hand-operated field railway transporting a captured dugong in new guinea — five local men stand beside the large marine mammal lying across two small rail wagons - 儒艮 幅插畫檔、美工圖案、卡通及圖標
sea life, marine mammals, skeletonof a dugong, wildlife art, vintage illustration, 19th century woodcut - 儒艮 幅插畫檔、美工圖案、卡通及圖標動物骨架
title: dugong — dugong dugon — resting on shore (1890 natural history engraving) - 儒艮 幅插畫檔、美工圖案、卡通及圖標
title: dugong — dugong dugon — swimming in shallow waters (1890 natural history engraving) - 儒艮 幅插畫檔、美工圖案、卡通及圖標
illustrations for educational games for children. so that children can learn to count the numbers according to the pictures provided in the animal category. - 儒艮 幅插畫檔、美工圖案、卡通及圖標
wildlife, animals, dugong a marine mammal, victorian, vintage illustration, 19th century - 儒艮 幅插畫檔、美工圖案、卡通及圖標
illustrations for numerical education for young children. for the children learned to count the numbers 2 with 2 dugongs as shown in the picture in the animal category. - 儒艮 幅插畫檔、美工圖案、卡通及圖標
sea life, marine mammals, a dugong, wildlife art, vintage illustration, 19th century woodcut - 儒艮 幅插畫檔、美工圖案、卡通及圖標
sea life, marine mammals, teeth of a dugong, wildlife art, vintage illustration, 19th century woodcut - 儒艮 幅插畫檔、美工圖案、卡通及圖標
wildlife, sea life, dugong a marine mammal, vintage illustration, 19th century, victorian - 儒艮 幅插畫檔、美工圖案、卡通及圖標
vector illustration for learning shadow of different shapes. for children witch 4 cartoon images sea horse, dugong, seal, octopus . - 儒艮 幅插畫檔、美工圖案、卡通及圖標
sea life, marine mammals, skull of a dugong, wildlife art, vintage illustration, 19th century woodcut - 儒艮 幅插畫檔、美工圖案、卡通及圖標頭骨
