306 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



{JSryctitheriutn velox and JV. priscus), the first of the order ever 

 detected fossil in this country. 



A new genus of fossil mammals, named Dinoceras mirabilis, 

 from the eocene formation of Wyoming, equal in size to the 

 elephant. It presents a remarkable combination of charac- 

 ters, and, although allied to the recent elephant, the skull was 

 armed with horns, and with huge decurved canine tusks. 

 The top of the skull was deeply concave, and has around its 

 lateral and posterior margins an enormous crest. 



A second species, nearly equal in size, called D. lacustris, 

 was also obtained, and the two recorded by Professor Marsh 

 are placed in a distinct order, which he names Dinocera. 



Fossil quadrumana from the eocene deposits of the Rocky 

 Mountains. The genera Limnotherium, Tkmolestes, and Tel- 

 matolestes are, in his opinion, closely related to the lemurs, 

 especially in the correspondence of the larger bones. The 

 teeth are more numerous than in any known quadrumana, 

 some species having apparently forty namely, two incisors, 

 one canine, and seven premolars and molars on each side of 

 each jaw. This discovery is considered one of great interest 

 and importance. 



Large carnivora? of a new genus, under the name oiLimno- 

 felis latidens, in which the canines and premolars of the lower 

 jaw resemble those of the hyena, but with only two incisors 

 on either side. The single species is supposed to have been 

 as large as a lion. 



A fossil bird, obtained by Professor Mudge in the upper 

 cretaceous shale of Kansas, and described by Professor Marsh. 

 The remains indicate an aquatic form about the size of a 

 pigeon, but differing widely from all known birds in having 

 biconcave vertebrae. The rest of the skeleton, however, is 

 quite similar to that of the average type. The species has 

 been named Icthyomis dispar. 



Five species of fossil birds of a new genus of waders, 

 Aletornis, and one species of Uintomis, probably belonging 

 to the woodpeckers ; also a new species of Catarractes from 

 the post-plioceife of Bangor, in Maine, together with a new 

 turkey and a new crane from the post-pliocene of New Jer- 

 sey. 



Five new species of a new genus of fossil reptiles, which 

 he calls Thinosaurus. These were large carnivorous lizards, 



