In biology, a test is the hard shell of some spherical marine animals and protists, notably sea urchins and microorganisms such as testate foraminiferans...

the tusk shells or the internal shells of the cephalopods. Many of Rumpf's terms were later adopted by Carl Linnaeus. The study of zoology, including...

by Terrestrial Gastropods: a Comparison between Shelled and Shell-Less Species". Physiological Zoology. 52 (4): 461–469. doi:10.1086/physzool.52.4.30155937...

evolutionary origin of the turtle shell and its dependence on the axial arrest of the embryonic rib cage". Journal of Experimental Zoology Part B: Molecular and Developmental...

the shell correctly identified. Some owners of shell collections hope to be able to donate their collection to a major natural history or zoology museum...

In zoology, an ambulacrum is an elongated area of the shell of an echinoderm in which a row of tube feet are arranged. It is pluralized as ambulacra. The...

freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they...

The gastropod shell is part of the body of a gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical...

by Terrestrial Gastropods_ a Comparison between Shelled and Shell-Less Species". Physiological Zoology. 52 (4): 461–469. doi:10.1086/physzool.52.4.30155937...

All are protected under CITES Appendix II. Depending on species, adult shell diameter is between 10 and 25 cm (4 and 10 inches). Nautilidae, both extant...

identity of a (species), to allow study, increase public knowledge of zoology. Zoological specimens are extremely diverse. Examples are bird and mammal study...

superfamily Paguroidea that have adapted to occupy empty scavenged mollusc shells to protect their fragile exoskeletons. There are over 800 species of hermit...

professional conduct, and boundary issues with their models. Bob Shell trained in zoology and, after college, worked for the Smithsonian Institution. He...

outline is provided as an overview of and topical guide to zoology: Zoology – study of animals. Zoology, or "animal biology", is the branch of biology that relates...

9426; 30.3056 The Zoological Museum of the Zoological Institute of the Russian Academy of Sciences is a Russian museum devoted to zoology. It is located...

The Museum of Comparative Zoology (formally the Agassiz Museum of Comparative Zoology and often abbreviated to MCZ) is a zoology museum located on the grounds...

Ammonoids are extinct spiral shelled cephalopods comprising the subclass Ammonoidea. They are more closely related to living coleoids (i.e., octopuses...

The tusk shells or tooth shells, technically the Scaphopoda /skæˈfɒpədə/ (the scaphopods /ˈskæfəpɒdz/, from Ancient Greek σκᾰ́φης skáphē "boat" and πούς...

ancestral mollusc" (see image below). This has a single, "limpet-like" shell on top, which is made of proteins and chitin reinforced with calcium carbonate...

In a zoological context, spines are hard, needle-like anatomical structures found in both vertebrate and invertebrate species. The spines of most spiny...

their shells. Hickman, Cleveland; Roberts, Larry; Keen, Susan; Larson, Allan; l'Anson, Helen; Eisenhour, David (2008). Integrated Principles of Zoology (14th ed...

The Ōmori Shell Mounds (Japanese: 大森貝塚) are the middens, located in Ōmori, on the border of Shinagawa and Ōta, Tokyo, Japan. The shell mounds had been...

limax, "slug", and Greek -λογία, -logia) is the branch of zoology which deals with slugs, i.e. shell-less gastropod mollusks. A person that studies limacology...

sauropods overall is uncommon. In modern times, some molluscs employ the use of shells as armour, and armour is evident in the chitinous exoskeleton of arthropods...

Sea acorn in Wiktionary, the free dictionary. Acorn barnacle and acorn shell are vernacular names for certain types of stalkless barnacles, generally...

with a hard shell, which would otherwise prevent growth. The moult cycle is coordinated by hormones. When preparing for moult, the old shell is softened...

Natural History Bailey-Matthews Shell Museum Cau del Cargol Shell Museum Maria Mitchell Association Museum of Comparative Zoology at Harvard National Museum...

short sword of the same name, and is a vestige of the ancestral mollusc shell, which was external. The gladius is located dorsally within the mantle and...

Invertebrate zoology is the subdiscipline of zoology that consists of the study of invertebrates, animals without a backbone (a structure which is found...

20 July 2022. Turton, W. (1825). "Description of some new British shells". Zoological Journal. 2: 361. Works by or about William Turton at Internet Archive...