IS 
THE ZOOLOGICAL DEPAE'J'MEXT. 
[upper 
fish, with its long pike-like nose ; the Dolphins, v\-hich change colo.ur 
so rapidly \vhen they are dying ; the Surgeon fish, armed with a lancet- 
like spine on the side of its tail ; the Wolf fish, able to crush the 
liardest shells ; the Gobies, which make a nest of sea-weeds, &c. The 
Anglers or Fishing Frogs, with their enormous head and mouth ; the 
Kockfish, so many of which are gaily coloured when alive. They have 
thick fleshy lips. 
Wall Cases 14-1 9. Soft-rayed Fish, such as the Carp, and other 
fresh-water fish ; the voracious Pikes ; the bony Pikes of the American 
rivers, armed with coats of mail like plates of ivory ; the Siluroid fish, 
many of which are armed with row's of plates. The Thunder fish of 
the Arabs is one of these, which can communicate a galvanic shock ; the 
Salmons and Trouts peculiar to the Arctic and North temperate regions. 
The Herrings, the Cod and Haddock family — so useful to man as food, 
and all of them swimming in great shoals ; the flat-fish, such as Tur- 
bots and Flounders, with compressed bodies : they lay on the white 
side at the bottom of the sea. The Lump-fish and the Eels are in 
Case 2'2. 
Cases 23, 24. The Sea-horses ; the Globe fish, covered with spines : 
they can puff themselves up wdth air. 
Cases 25, 26. The File-fish, with small teeth and a hard skin ; the 
Coffin fishes, with a hard horny skin, formed of six or eight-sided 
plates. 
On the tops of the Cases are some specimens of the larger Fish ; 
the Sudis gigas of Guiana, the largest fresh-water fish ; the Flying 
Sword-fish ; the pike of a Sword-fish forced through the oak timber of a 
ship, these fish swimming with great force. 
Tables 1-12. Insects such as the Coleoptera, or Beetles; the Leaf 
heetle, or Mormolj^ce of Java ; the ScarabcBus, esteemed sacred hy the 
Egyptians ; the large African Goliath Beetles ; the Fire-fly of the West 
Indies ; the Weevils, as the Diamond Beetle of Brazil ; the long- 
horned Beetles, such as the Harlequin Beetle ; the Tortoise Beetles ; 
the Lady-birds, so destructive to the plant-lice. Orthopterous Insects, 
such as the Praying Mantis, with their eggs ; the Walking Sticks and 
Leaf insects, resembling leaves and twigs of trees; the Crickets. 
Neuropterous Insects, as Dragon-flies ; Ant-lions, the larvae of which 
form pits to catch insects ; the White Ants, so destructive in the tropics. 
Hyinenopterous Insects, as the Ichneumons, Ants, Wasps, and Bees, 
the mobt interesting of all the orders on account of the curious habits 
and strange instincts and powers of its members. The Lepidopterous 
Insects, such as the Butterflies, Hawkmoths, and Moths ; the Hemi- 
ptera and Homoptera, with their strange forms ; the Diptera, such as the 
(iiiat and the Breeze. The Tsetse of South Africa, a fly which de- 
stroyH liorses and domestic cattle. 
'i'aljlcs 11, 12. Tlic Si)idcrs, as the Mygalc,or Bird-catching Spider; 
the Mining Spiders, which dig holes in clayey banks, and close them by 
a door hanging with a hinge; the Scorpions; the Ticks, one of which 
is parabilic on tiie Jihinoceros. The Centipedes and Millipedes, so 
called from the great number of their feet. 
