I6O THE COAL MEASURES AMPHIBIA OF NORTH AMERICA. 



MEASUREMENTS OF THE SPECIMENS OF SAUROPLEURA PAUCIRADIATA COPE. 



mm. mm. 



Length of clavicle, left. . 43 Space between ridges. ... 2 



Width of clavicle ... 25 



Large specimen No. 8657 G and obverse (13) described us Colostcus scutellatus Newb. 



mm. 



Length of specimen-, as preserved 117 Width of clavicle. 18 



Width of specimen, maximum. . 61 Length of interclavicle. . 40 



Length of fore arm <) Width of interclavicle .. 23 



Length of hand 10 Width of a ventral scute. . , 1.5 



Length of metacarpus 5 Length of scute from angle to en. 1 ... 35 



Length of clavicle 4 



Skull No. S666 C, plate xxiii,fg. i (Cape, 123), Colosteiis sciitellattts. 



mm. mm. 



Length of skull, as preserved 65 Width of mandible, maximum. . in 



Width of skull .. 40 Length of longest tooth 5 



Diameter of orbit :. 6 Width of tooth at base. . 1.5 



Length of mandible 7 



Skull Nns. 8602 G and 86oS G. 



mm. mm. 



Length of skull, as preserved 50 Diameter of orbit. . 15 



Width of skull ... 60 Length of mandibular tooth. . 4.5 



Other specimens associated with this species: Nos. 8668 G, 86746,85540, 

 8661 G. All specimens in the American Museum and all from Linton, Ohio. 



SCUTES OF SAUROPLEURA. 



There arc found associated with the remains of the genus Sauropleura a num- 

 ber of heavy scutes or scales. There are three of them on the same block as the 

 specimen of 5. longidentata and are provisionally referred to the genus. There 

 are a number of scutes preserved separately, but they agree in their characters 

 with those discovered on the specimens. The scutes are elongate and usually acu- 

 minate at one end and having a broad base at the other. The acuminate end is 

 slightly bent to one side so as to present the appearance of a hook. Others are 

 shield-shaped and are quite large, while the majority of the hook-shaped ones are 

 small. The shield-shaped elements have a rounded boss near the center of the 

 plate and the edges are imbricated. Their nature and their proper location on the 

 animal are a puzzle. They may not belong to the genus, but have been noticed with 

 the remains of at least 3 species. 



MEASUREMENTS (IN MILLIMETERS) OF SCUTES ASSOCIATED WITH THE SPECIMENS OF SAUROPI.EI KA. 



No. 45 H U. S. National Museum: 



Length 27 



Width, maximum '4 



Width, minimum 3 



Scutes associated with the specimen of Sauropleura longidentata: 



Width across base 3 



Width across tip I 



Additional specimens are: Nos. 3, 8673 G and 8470 G, American Museum of 

 Natural History. 



Sauropleura longidentata Moodie. 

 MOODIE, Jour. Geol., 17, No. i, pp. 74-76, figs. 18, 19, 1909. 



Type: Specimen No. 8619 G, American Museum of Natural History. 

 Horizon and locality: Linton, Ohio, Coal Measures. 



This species may be distinguished from other members of the genus by the large 

 size and shape of the cranium (462) and the broad mandible (plate 16, figs. 2, 3) 



