52 



VERTEBRATA. 



phalangeal impressions and claws exceedingly distinct. The smaller tracks were 

 made by the B. SUlimanium, and the larger by B. exsertum, Hk. The length of 

 the middle and outer toes of the former is between four and five inches ; of the 

 foot about six inches ; and of the step twenty-three inches. Width of the track- 

 way, four and a half inches. The middle and outer toes of the latter measure six 

 inches ; the foot nearly three inches ; and the step thirty inches. The slab also 

 contains the crooked trackway of the Cunicularius retrahens, Hk., and mud- 

 veins. The original was discovered in the micaceous sandstone (Lias ?) at Mid- 

 dletown, Conn., and is in the Appleton Cabinet at Amherst. 



Size, 4 ft. 10 in. x 3 ft. 1 in. Price, $10.00. 

 No. 193. Amblonyx giganteus, Hitch. 



Tracks, on slab (relief). The two largest foot-prints in this specimen are 

 those of the A. giganteus. The foot measures 11.25 inches, and the step 32 

 inches ; width of trackway one foot. The other tracks belong to the Brcmtozoum 

 validum, Hk. The step of this tridactyle animal is 33 inches in length, and the 

 foot about 8 inches ; width of trackway 6 inches. This slab was found by Dexter 

 Marsh in the Lias (?) formation at Turner's Falls, Mass., and is in the Appleton 

 Cabinet at Amherst. Size, 8 ft. 1 in. x 4 ft. 4 in. Price, $20.00- 



No. 194. C-igantithermm candatum, Hitch. 



Tracks On slab. This " ornithoid Lizard or Batrachian" had three clawed 

 toes pointing forward, and one short posterior one ; the tracks are nearly in a right 

 line, showing that the animal was bipedal and long-legged ; and there is the trace 

 of a tail dragging behind,, which passes through the middle of the tracks, except 

 when the animal changed its course. The length of the foot from the tip of the 

 middle toe to the end of the heel is 17.5 inches. On the same slab are also tracks 

 of the " narrow-toed Bird," Fridentvpes uncus, Hk., and a pentadactylous Tortoise, 

 C7iehnoides incedens, Hk. This specimen was found in the Lias (?) sandstone, 

 near Turner's Falls, Mass., and is now in the Appleton Cabinet at Amherst. 



Size, 8 ft. 8 in. x 1 ft. 11 in. Price, $10.00. 



No. 195. Anomcepus major, Hitch. 



Tracks on slab. This singular ani- 

 mal had tridactyle hind-feet with clawed 

 toes, heels, and phalanges of a Bird ; but 

 the fore-feet (not represented on this slab) 

 had five toes, corresponding with those of 

 the Kangaroo. From a fifth, heart-shap- 

 ed, impression behind, it is inferred that 

 the " ornithoid, marsupialoid" quadruped 

 (as Dr. Hitchcock defines it), possessed a 

 stout caudal appendage. The length 

 of the hind-foot is 16^ inches. The 

 original was discovered in the red sand- 

 stone (Lias ?) at Gill., Mass., and is in 

 the Appleton Cabinet at Amherst. 

 Size, 2 ft. 3 in. x 19 in. Price, $5.00. 



