540 RICHARD SWANN LULL ON 



Genus Cunichnoides E. Hitchcock. (Dog-like track.) 

 Cimichnoides E. Hitchcock, '58, p. 54. 



Generic characters. Quadrupedal; fore feet rather the smaller. Ball of the foot 

 making a distinct impression with at least four circular impressions arranged nearly on a 

 semicircle in front of that made by the ball. No claw impressions. 



This footprint bears a rather faint resemblance to that of a dog or cat, especially the 

 latter because of the absence of claws, but the impression which would represent the ball 

 of the foot is not differentiated from the impressions of the digits as in the modern Carniv- 

 ora. The impressions are certainly not reptilian and may possibly Ije mammalian, but 

 it seems likely, in \dew of their rarity, that the creature which made the tracks was 

 abnormal. 



Cunichnoides marsupialoideus E. Hitchcock. 

 Gunich?ioides marsupialoideus E. Hitchcock, '58, p. 55, pi. 9, fig. 5 ; pi. 40, fig. 2. 

 Type specimen, no. ^, of the Hitchcock cabinet, from Portland, Connecticut. 



GENERA OF DOUBTFUL VALIDITY. 



Genus Anticheiropus E. Hitchcock. (Thumb foot.) 

 Anticheiropiis E. Hitchcock, '65, p. 10. 



Generic characters. Bipedal, digitigrade, tetradactyl. Digits broad but without 

 phalangeal pads. The name is based upon the fact that one toe is offset like a thumb. 

 In A. piluJatus it is evidently digit II which is thus oft'set, whereas in A. hamatus it is 

 digit IV. The latter bears a strong resemblance to Anomoepus crassics except that in 

 the latter the divarication between digits IH and IV is not so great. 



Each species is based upon but a single specimen which in both instances may be 

 abnormal. 



Anticheiropus pilulatus E. Hitchcock. 



Anticheiroims jyUulatus E. Hitchcock, '65, p. 10, pi. 9, fig. 3. 



Specific characters. Pes: divarication of digits II and III, 75°; of III and IV, 15°; 

 of II and IV, 90°. Length, measured to rear of impres.sion, of digit II, .255 m.; of III 

 .457 m.; of IV, .315 m.; of the foot, .520 m. Distance between lateral tips, .420 m. 

 Claws broad and rounded, pellet-like. There is an oval depression beside digit II 



