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A disease which affects children, and which is characterized by a bulky head, crooked spine and limbs, depressed ribs, enlarged and spongy articular epiphyses, tumid abdomen, and short stature, together with clear and often premature mental faculties. The essential cause of the disease appears to be the nondeposition o…

hippopotamus. -- River jack (Zoöl.), an African puff adder (Clotho nasicornis) having a spine on the nose. -- River limpet (Zoöl.), a fresh-water, air-breathing mollusk of the genus Ancylus, having a limpet-shaped shell. -- River pirate (Zoöl.), the pike. -- River snail (Zoöl.), any species of fresh-water gastropo…

The anterior, often spinelike, prolongation of the carapace of a crustacean, as in the lobster and the prawn.

ackish on the back; grayish below. Called also dunbird, dundiver, ruddy diver, stifftail, spinetail, hardhead, sleepy duck, fool duck, spoonbill, etc. -- Ruddy plover (Zoöl.) the sanderling.

Having a straight shaft with whorls of spines; -- said of certain sponge spicules. See Illust. under Spicule.

A lateral curvature of the spine.

merican birds constituting the family Anhimidæ, and the suborder Palamedeæ. They have two spines on each wing, and the head is either crested or horned. They are easily tamed, and then serve as guardians for other poultry. The crested screamers, or chajas, belong to the genus Chauna. The horned screamer, or kamichi, is…

ottoid fishes of the genus Cottus, or Acanthocottus, having a large head armed with sharp spines, and a broad mouth. They are generally mottled with yellow, brown, and black. Several species are found on the Atlantic coasts of Europe and America.

The European fifteen-spined stickleback (Gasterosteus spinachia); -- called also bismore.

Any fish of the genus Diodon, and allied genera, whose body is covered with spines. See Illust. under Diodon.

A European sculpin (Cottus scorpius) having the head armed with short spines.

more or less rigid, bristlelike organ or part; as the hairs of a caterpillar, the slender spines of a crustacean, the hairlike processes of a protozoan, the bristles or stiff hairs on the leaves of some plants, or the pedicel of the capsule of a moss.

nat.), a joint formed by a bony ring passing through a hole in a bone, as at the bases of spines in some fishes.

an Australian plant (Acæna ovina) related to the burnet. The fruit is covered with barbed spines, by which it adheres to the wool of sheep. -- Sheep run, an extensive tract of country where sheep range and graze. -- Sheep's beard (Bot.), a cichoraceous herb (Urospermum Dalechampii) of Southern Europe; -- so called fr…

Having the fin rays cartilaginous or flexible; without spines; -- said of certain fishes.

oldier bug (Zoöl.), any hemipterous insect of the genus Podisus and allied genera, as the spined soldier bug (Podius spinosus). These bugs suck the blood of other insects. -- Soldier crab (Zoöl.) (a) The hermit crab. (b) The fiddler crab. -- Soldier fish (Zoöl.), a bright-colored etheostomoid fish (Etheostoma coerule…

r the Spaniards. Spanish bayonet (Bot.), a liliaceous plant (Yucca alorifolia) with rigid spine-tipped leaves. The name is also applied to other similar plants of the Southwestern United States and mexico. Called also Spanish daggers. -- Spanish bean (Bot.) See the Note under Bean. -- Spanish black, a black pigment o…

Of or pertaining to a spine or spines. Spinal accessory nerves, the eleventh pair of cranial nerves in the higher vertebrates. They originate from the spinal cord and pass forward into the skull, from which they emerge in company with the pneumogastrics. -- Spinal column, the backbone, or connected series or vertebræ…

Bearing a spine; spiniform.

Having spines arranged spirally. See Spicule.