462 TEN YEAKS IN SWEDEN. 



11. R. ESCULENTA (Schinz nee Lin.) Atlig Groda. 



Colour greenish, with black spots, and a long yellow 



streak down the back ; only one joint of the long hind 



toe protrudes beyond the web ; length of the head and 



body 3 in., of the fore legs I in. ; hind legs 4 in. 



I question whether this species was known to Linne as 



Swedish. It is certain that the R. Esculenta, described in his 



" Fauna Suecica" as found in Smaland, is nothing more than 



E. Temporania. It is very rare in Sweden, and confined only 



to two or three places in the south. Appears to have been 



identified some thirty-five years ago by Professor Ketzius. 



Gen. Bombinator, Merr. 



Tympanum of the ear hidden; tongue grown to the 

 mouth throughout the whole of its under side ; body covered 

 with warts ; hind toes joined together with a whole web to 

 their very ends. Appear to form a link between the frogs 

 and the toads, and live principally in water. 



12. BOMBINATOR IGNEUS, Merr. Klock Groda. 



Grey-brown above, or dirty olive green ; below red- 

 dish yellow, with blue spots. Is the least of all the 

 frogs here, rarely exceeding \\ in. in length ; hind legs 

 about 2 in. 



This curious little frog appears to have been introduced 

 into Denmark about the same time as the carp, by one Peder 

 Oxe, and to this day, in some places in Scania, they go by 

 the name of Peder Oxe's frog. Their note in the pairing 

 season strongly resembles the ringing of bells. As this sound 

 proceeds from the depth of the water, it appears to come 

 from a long distance, although the frog may be within a few 

 fathoms. Linne, in his " Journey through Skane," remarks 

 that the " korn grodoma" croaked in the afternoon as if we 

 heard large bells ringing at a distance of half a mile (Swed- 

 ish), although they were close to us in the pools. They 

 seemed to be unusually vociferous, and I could well fancy 

 that I listened to many church-bells all ringing together on 

 a Sunday. I wonder that no one acclimatizes them, in 



