C52 l)[{. J. \V. DAWSOX ON VMKCT THKlvS CONTAINlNti AXIMAIi 



Very tint.' series of tootpriuts of several iiidivitliiiil.s of dillereiit si/e.s, and sliou'iiij^ 

 dilFerent <':iits, and in une instance the nut of \valli)uin|,f in .soft, mud, liave I)een fuund 

 in sandstone at Fillmore "s (Juairv, liiver IMiilip, Nova Seotia, and aio nn\v in the 

 Museum of the Geoloj^ical Survey. In some of the series of tracks there is no mark 

 of the belly or tail. In others the belly has left impressions marketl with lon;;-itudinal 

 "■•rooves, as if there were abdominal furrows or rows of scales. Descriptions of the 

 principal specimens will be found in the publications above referred to. 



2. Sutii'oinis Si/diteiiniti, Dawson. 



['Acadian Geology,' 3rd edition, p. 858, and woodcut.] 



This animal had shorter and broader feet, with five toes and no indication of the 

 peculiar claw of the previous species. The breadth of the foot was about three inches, 

 the width of the body abmt six inches, and the stride about eight inches. The 

 original specimen was obtained by 11. Buow.v, Es(j., F.G.S., in the coal formations ut 

 Sydney, Cape Breton, and is now in the Museum of the McGiLL University. 



Siiinv2)us autiqiiior, Dawsi:x. 



This species is based upim a series of foot])rints found by Mr. F. M. JoNKS, of 

 Halifax, at Parrsboro, and now I believe in the provincial Museum at Falifax, where 

 I have seen the specimen. The horizon is probably that of the lIuuTON si'iies. The 

 footprint is about three and a-Iialf inches wide, and scarcely half as nuich in apparent 

 length. It kIkiws four sulic(jual toes, and an outer toe diverging froui the others, and 

 showing indications of a short claw. The shortness of the impressions in this species 

 and in S. Sijdncnsis gives them a digitigrade aspect, while those of /S. tiiKjinj'cr have a 

 plantigrade appearance, varying Imwever in diU'L'rcnt impressions. 



llijlv[)(is Loyani, Dawsox. 



[' Air-breathers of the Coal Period,' p. 5, fig. 1. 'Acadian Geology, Urd edition, 



p. 3.;3.'] 



The original specimen of this foot[)rint was fmuid by Sir W. E. LooAN at Ilortou 

 Blutf in 1841, and was the fust evidence of the existence of Batrachians in the Car- 

 boniferous Period. The s[)ecimeu obtained by Lucan is fully described in the works 

 above cited. The impression has been made on a iirm surface, and shows merely the 

 marks of four claws <jr narrow toes. Each impression is about one inch in length; the 

 distance Ijetween the right and left footmarks is aliout three inches, aud the stride 

 about four inches. There is no mark of the belly or tail. In 1881 a somewhat larger 

 .series of impressions, which should, however, probably be referred to the same species, 

 was found in the same beds by Mr. PiXKO, of llantsport, and is now in the Museum of 



