leptoid scale — cycloid and ctenoid scales, q.v … Dictionary of ichthyology
Scale (zoology) — In most biological nomenclature, a scale (Greek lepid , Latin squama ) is a small rigid plate that grows out of an animal s skin to provide protection. In lepidopteran (butterfly and moth) species, scales are plates on the surface of the insect… … Wikipedia
Gerald Heard — Henry Fitzgerald Heard commonly called Gerald Heard (October 6, 1889 August 14, 1971) was a historian, science writer, educator, and philosopher. He wrote many articles and over 35 books. Heard was a guide and mentor to numerous well known… … Wikipedia
Hydroid — may refer to:Marine BiologyColonial, plant like animals closely related to jellyfish, with stinging cellsany member of the invertebrate order Hydroida (class Hydrozoa, phylum Cnidaria). Hydroids have three basic life cycle stages: (1) a tiny free … Wikipedia
Kosher animals — are those which comply with the regulations for Kosher food in Jewish religion. These food regulations form the main aspect of kashrut , and ultimately derive from various passages in the Torah. Various modifications, additions, and… … Wikipedia
Sand Shiner — Scientific classification Kingdom: Animalia Phylum: Chord … Wikipedia
scale — 1) a small, stiff, typically plate like body in the skin of fishes, serving to protect, colour, and support the body. May be modified into spines, tubercles, bony plates, an exoskeleton, reduced or even lost. Phylogenetically absent in Amphioxi… … Dictionary of ichthyology
