FROG-FISHES. 
171 
[ farthest part of the chamber, and on one occasion 
found it depositing the ova.” 
.1 We have already (see p, 24) mentioned the 
Phycis {<PukI$) of Aristotle, a Mediterranean 
species of this Family, as exhibiting a parallelism 
of instinct to the above, forming a nest of sea- 
I weeds, in which the spawn is deposited, and the 
young are tended by the parent fishes. 
i' 
I Family XV. LopHiADiE. 
i {Frog-fishes.) 
So exclusively are fishes in general inhabitants 
I of the water, that it excites our surprise and 
I admiration to see any species emerging from that 
! element, and voluntarily taking to the earth or 
I to the air. Among the Mammalia, there is one 
I extensive Order, which is a&ial, that of the Bats ; 
and one which is exclusively aquatic, that of the 
Whales and Dolphins ; while there are some mem- 
bers of the other Orders, which, in a less degree, 
! * emulate the habits of these respectively, as the 
volant Lemurs, Squirrels, and Petauri, on the 
one hand, and on the other the aquatic Shrews, 
the Otters, the Seals, and the Manatees. So 
among Birds, the terrestrial Ostriches, and allied 
forms, and the swimming and diving Penguins, 
are well-known deviations from the characteristic 
habits of their Class, and representatives of beasts 
and fishes. Reptiles again exhibit almost as 
! many aquatic as terrestrial types ; and not a few 
are arboreal, if not aerial, such as the Iguanas, 
the Anoles, the Dragons, the Chameleons, the 
Tree -snakes, and the Tree-frogs, But among 
