212 Miscellaneous. 



like those of Perissodactyles than are those ot the other Corypho- 

 dontidse. The t3'pe of Ectacodon is the E. ductus, a species of about 

 the dimensions of the hist named. Its last superior molar is paral- 

 lelogrammic, and has a cingulum all around it except on the external 

 side. Of Corypliodon a sjjecies larger than any yet Icnown has been 

 abundantly found by Mr. Wortmau, which I call, in a paper now 

 passing through the press, C. anax. The new Mctcdophodon is as 

 large as the Ectacodon cinctus, and has the second true molar more 

 triangular and less oval than in the typo M. armatHS. The posterior 

 external y of the last molar is reduced to a cone. I have called it 

 J/, testis. — Amcr. JSkct., Jan. 1882. 



A71 Anthropomoriilious Lemur. Ey E. D, CorE. 



The stock from which the true Quadrumana have been derived 

 is supposed to have been the Lemurs ; but no type of that suborder 

 has hitherto been found which presents any near resemblance to 

 either of the four families of monkeys. The two inferior families 

 Cebidae and Hapalidte agree with most of the Lemuridco 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 Lidri- 

 sina3, agree with the higher monkeys in having l)ut two ])remolars ; 

 but these also are only oue-lobed. 



A nearly perfect cranium of a species of Anaptomorphus^ Cope, 

 shows that this genus had but two premolars in the superior series, 

 as in the Indrisina), but that they are two-lobed, as in the Simiida; 

 and Hominida). Of these two families the Hominida) is the one to 

 which Anaptomorplius makes the nearest approach in dental charac- 

 ters. 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 lost from the specimen ; but those of the lower jaw, 

 which I discovered in 187-, were nearly erect as in man and the 

 Simiidae, and not procumbent as in most Lemurs. The cerebral 

 hemispheres arc remarkably large for an Eocene mammal, extending 

 to between the middles of the orbits ; the anterior parts, at least, are 

 smooth. The cerebellum projected beyond the foramen magnum 

 posteriorly, as in Tarsius. The orbits are large, approaching those 

 of Tarsius, but arc not so much walled in by a septum from the 

 temporal fossa as in that genus. The superior molars have only one 

 internal cusp. 



The species, which I propose to call Anaptomorplius hommicidus^ 

 has a wide palate much as in man ; and the true molar teeth dimi- 

 nish in size posteriorly. The pterygoid and zygomatic fossK are 

 short and wide, and the petrous bone is large and inflated. The 

 animal was nocturnal in its habits and was the size of a marmoset. 

 The genus is nearer the hypothetical lemuroid ancestor of man than 

 any yet discovered. — -Araer. Nat., Jan. 1882. 



