1 882.] Geology and Paleontology. 73 



New Forms of Coryphodontid^e. — The Wasatch*beds of the 

 Big Horn basin have yielded several important additions to this 

 family. Of eleven species found, two belong each to a new genus, 

 and one is a novelty of the little-known genus Metalophodon. 

 The characters of the genera of the family may be stated as 

 follows : t 



The type of Manteodon is the M. subqiiadratus, which was 

 about the size of an ox. The characters of its superior molars 

 are more like those of Perissodactyles than are those of the other 

 CoryphodontidcE. The type of Ectacodon is the E. ductus, a 

 species of about the dimensions of the last named. Its last su- 

 perior molar isparallelogrammic, and hasacingulum all around it 

 except on the external side. Of C \nypltodon, a species larger than 

 any yet known has been abundantly found by Mr. Wortman, which 

 I call, in a paper now passing through the press, C.anax. The new 

 Metalophodon is as large as the Ectacodon cinctus, and has the 

 second true molar more triangular and less oval than in the type 

 M, armatus. The posterior external ' of the last molar, is re- 

 duced to a cone. I have called it J/, testis.— E. D. Cope. 



An Anthropomorphous Lemur. — The stock from which the 

 true quadrumana have been derived, is supposed to have been the 

 lemurs, but no type of that sub-order has hitherto been found, 

 which presents any near resemblance to either of the four families 

 of monkeys. The two inferior families CebidtB and Hapalida, 

 agree with most of the LcwuridtC in having three premolar 

 teeth, but those of the upper jaw generally have well developed 

 internal lobes like the true molars, while most of those of the 

 Lemurs have none. One group of Lemurs, the Indrisitne, agree 

 with the higher monkeys in having but two premolars, but these 

 also are only one lobed. 



A nearly perfect cranium of a species of Ana ptomor phis Cope, 

 shows that this genus had but two premolars in the superior 

 series, as in the ludrisi,iu\ but that thev are two lobed, as in the 

 SimiidcB and HominnUc. Of these two' families, the Hominuhc is' 

 the one to which Anaptwrflixs makes the nearest approach in 

 dental characters. The canine is small with a crown little longer 

 than those of the premolars, and is not separated from the latter 

 or from the incisors by any appreciable diastema. All but one of 

 the superior incisors are lo^t from the specimen, but those of the 



