"A genus of fishes, typical of the family Anomalopidæ: so called from the remarkable structure manifested by a glandular phosphorescent organ below the eye."-Whitney, 1902

Anomalops Palpebratus

"A genus of fishes, typical of the family Anomalopidæ: so called from the remarkable structure…

The head of the bald eagle.

Bald Eagle Head

The head of the bald eagle.

A genus of kingfishers. Characterized by only having three developed toes.

Ceyx

A genus of kingfishers. Characterized by only having three developed toes.

"The great toe is generally the strongest, but this is not an absolute law; a projection which is found on the leg of some species is designated a spur, and is a formidable weapon."

Foot of Coot

"The great toe is generally the strongest, but this is not an absolute law; a projection which is found…

The talon of the Golden Eagle.

Eagle Talon

The talon of the Golden Eagle.

Foot of a bald eagle, well suited for grasping fish.

Foot of a Bald Eagle

Foot of a bald eagle, well suited for grasping fish.

A golden eagle carrying off a rabbit.

Golden Eagle

A golden eagle carrying off a rabbit.

The claw of a golden eagle.

Golden Eagle Claw

The claw of a golden eagle.

The claw of a gerfalcon.

Gerfalcon Claw

The claw of a gerfalcon.

A pair of Iceland falcons.

Iceland Falcon

A pair of Iceland falcons.

Foot of the Peregrine falcon, with talons for grasping prey.

Foot of a Peregrine Falcon

Foot of the Peregrine falcon, with talons for grasping prey.

A Hooded Peregrine Falcon perched on its block.

Hooded Peregrine Falcon

A Hooded Peregrine Falcon perched on its block.

The foot of a goat-sucker, with a distinctively longer middle toe, believed to be used for either grasping insects or combing its whiskers.

Foot of a Goat-Sucker

The foot of a goat-sucker, with a distinctively longer middle toe, believed to be used for either grasping…

The foot of an American sparrow-hawk.

Foot of American Sparrowhawk

The foot of an American sparrow-hawk.

The leg and foot of a hawk, shwering the method of attaching the Bells and Jesses. a, the end of the leash; b, the jesses; c, the bell; d the bewit; e, the varvels of silver, with owner's name and address engraved.

Hawk Leg

The leg and foot of a hawk, shwering the method of attaching the Bells and Jesses. a, the end of the…

A bird lure used for hawks.

Lure

A bird lure used for hawks.

The claw of a moorfowl.

Moorfowl Claw

The claw of a moorfowl.

The foot of an osprey. "The talon on the outer toe is much larger than the inner one, and capable of being turned backwards. The undersurfaces of all the toes are very rough and covered with protuberances, which enable to get a good grip on fish." &mdash Goodrich, 1859

Foot of an Osprey

The foot of an osprey. "The talon on the outer toe is much larger than the inner one, and capable of…

"The great toe is generally the strongest, but this is not an absolute law; a projection which is found on the leg of some species is designated a spur, and is a formidable weapon."

Foot of Pheasant

"The great toe is generally the strongest, but this is not an absolute law; a projection which is found…

The claw of a rooster.

Rooster Claw

The claw of a rooster.

A training device for birds of prey.

Tabur Stycke

A training device for birds of prey.

An illustration showing how to construct a talon, or two circle arcs that will tangent themselves, and meet two parallel lines at right angles in the given points A and B. "Join A and B; divide AB into four equal parts erect perpendiculars; then m and n are the centers of the circle arcs of the required talon."

Construction Of A Talon

An illustration showing how to construct a talon, or two circle arcs that will tangent themselves, and…