"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the…
"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the…
"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the…
"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the…
"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the…
"This game is played something like lawn billiards, except that there are six revolving rings instead…
"Get a circular piece of tin, three inches or more in diameter, and cut it round the edges in the form…
A genus of fishes inhabiting the fresh waters of South America, and typical of the family Cichlidæ.
"The position of the true meridian may be found as follows: Point the hour hand of a watch towards the…
"A telescope is an instrument designed for the observation of distant objects, and consists essentially…
"Originally used for any instrument used for observing stars; afterwards used for an instrument for…
A class of suctorial worms found in bodies of water, marshes, and other moist places. There are many…
A floral-shaped design which is said to resemble the "Star of Bethlehem," an early spring flower of…
A floral-shaped design which is said to resemble the "Star of Bethlehem," an early spring flower of…
A floral-shaped design which is said to resemble the "Star of Bethlehem," an early spring flower of…
A floral-shaped design which is said to resemble the "Star of Bethlehem," an early spring flower of…
An emblem seen the world over in decoration, especially in synagogues. It is common in the Caucasian…
An emblem seen the world over in decoration, especially in synagogues. It is common in the Caucasian…
An emblem seen the world over in decoration, especially in synagogues. It is common in the Caucasian…
A genus of fish including many species, and found widely distributed both in salt and fresh water. They…
The common name of a class of food fishes belonging to the genus salmo. They are common to both salt…
A gasteropodous mollusk, differing from the slug in having a large, spiral shell. The species are very…
A class of marine animals, which have a star-like body composed of a central disc extended into five…
Small, swimming, decapod crustaceans classified in the infraorder Caridea, found widely around the world…
This diagram shows a fresh-water annelid. a, appendages; br., brain; d, dissepiments; i, intestine;…
"Palaechinus sphaericus, Scouler; Carbouiferous, Ireland." — Encyclopedia Britannica, 1893
"Archaeocidaris Urii, Flem (spine and intermediate plate); Carboniferous, Ireland." — Encyclopedia…
"Cidaris glandifera, Goldf (spine); Jura, Mount Carmel." — Encyclopedia Britannica, 1893
"Hemipneustes Greenovii, Forbes, U. Greensand, Blackdown" — Encyclopedia Britannica, 1893
"Cidaris florigemma, with spine, a, and single ambulacral plate, magnified, b, (after Wright; Coral…
"Pygaster semisulcatus, Ph.; Inf. Oolite, Cheltenham." — Encyclopedia Britannica, 1893
"The common British species of Solaster, S. papposus, has ordinarily 13 rays." — Encyclopedia…
"The rays are sometimes very short, or altogether wanting, the body having the form of a pentagonal…
"Section of ray of Astropecten aurantiacus. a, vertebral ossicles; b, adambulacral ossicles; c, d, marginal…
"Tergal skeleton of Asterius rubens. a, connecting pieces; b, spinebearing plates." — Encyclopedia…
"Asterias rubens. a, 4-ranked pedicelis; b, end of pedicel magnified." — Encyclopedia Britannica,…
"Antambulacral surface of Asterias rubens. a, madreporite; a', the same magnified; b, anus." —…
"Ambulacra of Star-fish, As seen in a longitudinal and vertical section of one of the rays; and three…