Davis — On the Fossil Fish of the Cretaceous Formations of Scandinavia. 409 



Coprolite (?) Otodus. 



(PI. XL., fig. 33.) 



The coprolite figured is from the Museum at Stockholm, and is the only 

 example occurring in any of the collections. It closely resembles the coprolite 

 of Macropoma, and similar objects found in the Cretaceous formation of Bohemia 

 were identified by Eeuss* as the cojDrolites of Macropoma mantelli, Ag. Fritschf 

 expresses his conviction that, so far as the specimens represented on pi. v., figs. 1-5, 

 by Reuss, were concerned, they were the coprolites of a Selachian, and probably 

 belonging to Otodus appendiculatus, Ag. Some of the coprolites exhibited peculi- 

 arities of foi-m which could not be attributed to Macropoma ; and, further, there 

 was no evidence of the presence of Macropoma in the beds from which the 

 coprolites were obtained. The Swedish and Danish Chalk offers a parallel case. 

 Taken independently, it is probable that the coprolite now figured might be 

 associated with Macropoma ; but no evidence of the scales or bony skeleton of 

 this genus has been found, and the absence of such evidence leads to the 

 inference that the coprolite may, with a reasonable amount of probability, be 

 referred to Otodus appendiculatus, the remains of which are abundant. 



Formation and Locality. — Etage Sdnonien : Faxe. 



Ex coll. — Riksmuseum, Stockholm. 



Genus. Carcharodon. Mltller and Henle, 1841. ''Syst, Beschreib. 



Plagiostom.," p. 70. 



Second dorsal fin and the anal very small. A pit at the root of the caudal 

 fin, which has the lower lobe well developed ; side of the tail with a keel. Teeth 

 large, erect, compressed, triangular, without basal cavity, margin serrated. 



* " Verstein. der BSlimischen Kreideformation," p. 11, pi. v., figs. 1-8 ; pi. rr., figs. 68-80. 1845. 

 j- " Eeptil. u. Fisclieder Bohmiscliea Kreideformation," p. 18. 1878. 



