BRIEF EXPLANATION OF SCIENTIFIC TERMS xi

Elasmobranchti. Fishes having gills like plates.

Eocene. The lowest division of the Tertiary rocks.

felide., Cat-like animals.

femur. The thigh-bone.

fibula. The outer bone of the leg.

frssipeds. The carnivora in which the toes are divided, as among the
cats and dogs.

furculum. The merrythought, which is formed of the united
clavicles.

Ganoidet. Fishes which have enamelled bony scales.

fabitat, The locality in which an animal naturally lives,

fHfallux. The great toe.

ffeterocercal. Unequally lobed.

Humerus. The bone of the upper arm,

4fyoid. The bone which supports the tongue.

Llium. The haunch bone.

fnguinal. Pertaining to the groin.

Lnsectivora. Animals which feed on insects.

Lnvertebrata. Animals without a backbone.

Lacertilia, Lizard-like animals (Zacertus, a lizard).

Larynx. The upper part of the windpipe, from which the voice is
produced in mammals.

Lemuroidea. Animals of which the lemur is the type.

Ligamentum nuche. The neck ligament which supports the head.

Lingual. Pertaining to the tongue.

Lumbar. Pertaining to the loins.

Alammatia, The vertebrate animals which suckle their young.

Mandible. The lower jaw. ~

Marsupialia. Mammals which carry their young in a pouch, like the
kangaroo. :

AMaxitila. The upper jaw.

Alelanism, An excess of colouring matters in the skin and its appen-
dages, thus producing blackness.

Molars. The grinder teeth.

Monophyodont. Waving only one set of teeth.

Neural. Pertaining to the nerves.

Nidification, _Nest-building.

Notochord. The chorda dorsalis, a longitudinal cellular rod developed
beneath the spinal cord, and replaced by the vertebral column
in the adults of such animals as have a backbone.

Odontoceti, The toothed whales.

Bsophagus. The gullet.

Oral. Pertaining to the mouth.

Opposable. That which may be opposed. A word used incorrectly as
descriptive of the power of the human subject to grip with the
thumb and second digit. It is impossible to ‘ oppose’ these in the
strict sense of the word, as the thumb must press sideways on the
forefinger and cannot be twisted so as to get in front of it. An