536 JR. L. Moodie — Fossil Frogs of North America. 



the references given below.* The only question now as to the 

 relative ages of the species is that of determining the relative 

 ages of the Kimmeridge and Morrison and of the two the 

 Ivimmeridgian is undoubtedly the older. 



JSufo sp. 



The deposit near Long Island, Kansas, had been known for 

 many years as a deposit famous for the production of rhi- 

 noceros and other mammalian forms. From these deposits also 

 come the interesting Euphorbia (Tithymalus willistoni Cock- 

 erell). The frog remains recently sent me by the United 

 States National Museum were mingled with the Euphorbia 

 seeds, with fragments of small rodents, with small undeter- 

 mined lizard bones in such a way that they must have been 

 either blown or washed into the same pocket. I have separated 

 out the skeletal elements of several individuals of toads. The 

 elements are chiefly limb bones, vertebrae, urostyles, ilia with 

 scarcely a fragment that can be identified as skull. The 

 humeri especially show well-developed and well-preserved 

 epiphyses which are calcified and are occasionally firmly 

 attached to the cylindrical shaft. In one humerus there is a 

 well-developed deltoid crest which was probably capped by 

 cartilage, this in turn being confluent with the articular car- 

 tilage of the head of the humerus. I have had no means of 

 identifying the specimens specifically and I cannot be positive 

 the genus is correct. This must be done by someone con- 

 nected with an institution containing extensive collections of 

 skeletal elements of the salientian Amphibia. It is not thought 

 desirable to figure the remains, this being left to the one who 

 will discuss the taxonomy of the creatures involved. There is 

 nothing among them which is not found in the modern bufonid. 



In the Pleistocene of Pennsylvania and of Arkansas Wheatly 

 and Brownf have found remains which they have regarded 

 as liana, but the elements preserved are very scanty. Pro- 

 fessor Lull also reports the finding of remains of Salientia in 

 the Pleistocene deposits at the head of Tule Canyon, Briscoe 

 County, Texas. 



Department of Anatomy, 



University of Illinois, Chicago. 



* In case others may not have seen the following reference I give it here 

 in full : 



Louis Mariano Vidal : Sobre la presencia del tramo Kimeridgense en 

 el Montseih y hallazgo de un Batracio en sus hiladas. 



Sur le presence de l'etage Kimeridq:ien an Montseih (Province de Lerida, 

 Espagne), et decouverte d'un Batracien dans ces assises. — Memorias Real 

 Academ. Cienc. y Artes de Barcelona, iv, 1902, No. 18. (The frog is named 

 Palceobatrachus gaiidryi, Yidal, 1902). 



f Mem. Amer. Mus. Natl. Hist. 1. 



