LIASSIC FORMATIONS. 
81 
The present specimen, from Dr. Hiiberlein’s collection, now in the British Museum, 
shows the fifth or ‘wing-toe’ of the foot, ib. fig. 5, v, which had not been preserved in pre- 
viously described specimens of the genus. ^ At least thirty-four vertebrae extend beyond 
the sacrum ; thirty-eight caudals are the reckoned by Von Meyer in the specimen of his 
Ti. Gemmingi with the best preserved tail;® but this difference’ would not have yielded 
sufficient ground for specific distinction. There are, however, differences in the length 
of the parts of the hind limb which indicate this to have been longer in proportion to 
tail and the ‘ symphysis mandibulae’ than 
in 
B. Gemmingi. 
R. Meyeri. R. Gemmingi (pi. ix, V. M., op cit.). 
in 
1. 
in. • 1. 
Length of femur .... 
1 
O ] 
"2 
1 0 
„ tibia ..... 
2 
0 
1 8 
„ 1st toe 
1 
6 
1 21 
„ 2nd toe . 
1 
9 
1 4 
„ 3rd toe ... . 
1 
Hi 
1 6 
„ 4th toe ... . 
1 
loy 
1 3 
„ 5th toe .... 
0 
9 
In both specimens the number of phalanges of the toes increases from the first or 
innermost to the fourth, in the usual saurian ratio, 2, 3, 4, 5. In BamphorJignchus 
Meyeri the fifth toe consists, as in Dimorphodon, of two phalanges, the first being six lines 
in length, the second three lines, and ending in a point. The metatarsal of this ‘ wing-toe’ 
is short, broad, and flattened, wdth a convex outer border at its basal half. 
The bones of the left hind limb are well preserved in the specimen figured. 
The caudal vertebrae are surrounded by the bone-tendons. Their proportions, as 
shown in the figure, accord with those in Dimorphodon, PI. XIX, fig. 4.® The posterior 
dorsal vertebra of Bamphorhyiichus Meyeri show the broad diapophyses supporting the 
ribs, which are more slender than those at the fore part of the chest. The symphysis 
mandibufoe is one inch six lines in length, including the edentulous pointed end. Four 
pairs of long slender laniary teeth are preserved at the fore half of the symphysis. The 
teeth at that part of the lower jaw in Bampliorhynclms Gemmingi are fewer in number 
and less closely arranged. 
1 “ Ein Stummel wur niclit mit Sicberheit zu ermitteln.” — Von Meyer, op. cit., p. 72. 
2 Op. cit., p. 69. 
^ This figure has the neural surface downward iu the Plate. 
^ Compare with You Meyer, op. cit., pi. ix, fig. 1, and pi. x, fig. 1. 
II 
