224 FLYING SAURIANS. 
teeth. Their eyes were of enormous size, appa- 
rently enabling them to fly by night. From 
their wings projected fingers, terminated by long 
hooks, like the curved claw on the thumb of the 
Bat. These must have formed a powerful paw, 
wherewith the animal was enabled to creep or 
climb, or suspend itself from trees. 
It is probable also that the Pterodactyles had 
the power of swimming, which is so common in 
reptiles, and which is now possessed by the 
Pteropus Pselaphon, or Vampire Bat of the 
island of Bonin. (See Zool. Journ. No. 16, p. 
458.) '' Thus, like Milton's fiend, all qualified 
for all services and all elements, the creature 
was a fit companion for the kindred reptiles that 
swarmed in the seas, or crawled on the shores of 
a turbulent planet. 
'' The Fiend, 
O'er bog, or steep, through strait, rough, dense, or rare, 
With head, hands, wings, or feet, pursues his way, 
And swims, or sinks, or wades, or creeps, or flies." 
Paradise Lost, Book II. line 947. 
With flocks of such-like creatures flying in the 
have been about four feet from tip to tip. A fourth species, P. 
crassirostris, has been described by Professor Goldfuss. In PI. 
22, N. I have given a reduced copy of his plate of the specimen ; 
and in PI. 22, A. a copy of his restoration of the entire animal. 
Count Munster has described another species, P. medius. Cuvier 
describes some bones of a species, P. grandis, four times as large 
as P. longirostris, which latter was eibout the size of a Wood- 
cock. Professor Goldfuss has described a seventh species from 
Solenhofen, P. Munsteri ; and has proposed the name P. Buck- 
landi, for the eighth undescribed species found at Stonesfield. 
