|
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusca
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalvia
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and 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 lack some usual molluscan organs, like the radula and the odontophore. They include the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other hard surfaces. Some bivalves, such as the scallops and file shells, can swim. The shipworms bore into wood, clay, or stone and live inside these substances. The shell of a bivalve is composed o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuculanida
Nuculanida is an order of very small saltwater clams, marine bivalve molluscs in the subclass Protobranchia. Description These bivalves are distinguished by the presence of relatively primitive, "protobranchiate" gills. There are a row of short teeth along the hinge of the shell. The shells are often internally nacreous. Families Families within the order Nuculanida include: * Bathyspinulidae Coan & Scott, 1997 * Lametilidae * Malletiidae H. and A. Adams, 1858 * Neilonellidae Schileyko, 1989 * Nuculanidae H. Adams & A. Adams, 1858 * Sareptidae Stoliczka, 1871 * Siliculidae Allen and Sanders, 1973 * Tindariidae Verrill and Bush, 1897 * Yoldiidae Habe, 1977 * Praenuculidae Mcalester, 1969 (?) * Pristiglomidae Pristiglomidae is a family of small saltwater clams, marine bivalve molluscs in the order Nuculida Nuculida is an order of small saltwater clams, marine bivalve mollusks. This order belongs to the subclass Protobranchia Protobranchia is ... Sanders and Al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tindariidae
Tindariidae is a family of clams of the order Nuculanida. Genera * '' Spinula'' (Dall, 1908) ** '' Spinula calcar'' (Dall, 1908) ** '' Spinula oceanica'' Filatova, 1958 ** '' Spinula bogorovi'' Filatova, 1958 ** '' Spinula vityazi'' Filatova, 1964 ** '' Spinula tasmanica'' Knudsen, 1970 ** '' Spinula pelvisshikokuensis'' Okutani, 1975-b * '' Tindaria'' Bellardi, 1875 ** '' Tindaria acinula'' ** '' Tindaria aeolata'' (Dall, 1890) ** '' Tindaria agathida'' (Dall, 1890) ** '' Tindaria amabilis'' (Dall, 1889) ** '' Tindaria brunnea'' ** '' Tindaria californica'' ** '' Tindaria callistiformis'' Verrill & Bush, 1897 ** '' Tindaria cervola'' ** '' Tindaria cytherea'' (Dall, 1881) ** '' Tindaria dicofania'' ** '' Tindaria erebus'' Clarke, 1959 ** '' Tindaria kennerlyi'' ** '' Tindaria lata'' Verrill & Bush, 1897 ** '' Tindaria miniscula'' ** '' Tindaria smithii'' (Dall, 1886) ** '' Tindaria striata'' (King & Broderip, 1832) ** '' Tindaria virens'' (Dall Dall may refer to: People * An ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalve Genera
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and 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 lack some usual molluscan organs, like the radula and the odontophore. They include the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other hard surfaces. Some bivalves, such as the scallops and file shells, can swim. The shipworms bore into wood, clay, or stone and live inside these substances. The shell of a bivalve is composed of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
