|
Pterosagittidae
Pterosagittidae is a family of sagittoideans in the order Aphragmophora Aphragmophora is an order of sagittodieans in the phylum Chaetognatha. Families * Bathybelidae Bieri, 1989Bieri, R. (1989). Krohnittellidae and Bathybelidae, new families in the phylum Chaetognatha; the rejection of the family Tokiokaispadelli .... It consists of a single genus, ''Pterosagitta'' Costa, 1869,Costa, A. (1869). Di un nuovo genere di Chetognati. ''Annuario del Museo Zoologico della Università di Napoli'', 5, 54–57. which consists of a single species, ''Pterosagitta draco'' (Krohn, 1853).Krohn, A. (1853). Nachträgliche Bemerkungen über den Bau der Gattung ''Sagitta'', nebst der Beschreibung einiger neunen Arten. ''Archiv für Naturgeschichte'', 19(1), 266–277. References Chaetognatha Monotypic protostome genera {{Chaetognatha-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphragmophora
Aphragmophora is an order of sagittodieans in the phylum Chaetognatha. Families * Bathybelidae Bieri, 1989Bieri, R. (1989). Krohnittellidae and Bathybelidae, new families in the phylum Chaetognatha; the rejection of the family Tokiokaispadellidae and the genera ''Tokiokaisapadella'', ''Zahonya'', and ''Aberrospadella''. ''Proceedings of the Biological Society of Washington'', 102(4), 973–976. * Krohnittidae Tokioka, 1965 * Pterokrohniidae Bieri, 1991Bieri, R. (1991). Systematics of the Chaetognatha. In Bone, Q., Kapp, H. & Pierrot-Bults, A. (Eds.), ''The Biology of Chaetognaths''. Oxford: Oxford University. * Pterosagittidae Tokioka, 1965 * Sagittidae Claus & Grobben, 1905Claus, C. & Grobben, K. (1905). ''Lehrbuch der Zoologie''. 7th edition. Marburg-Heßen: NG Elwertsche Verlagsbuchhandlung. See also *Taxonomy of invertebrates (Brusca & Brusca, 2003) The biological systematics and taxonomy of invertebrates as proposed by Richard C. Brusca and Gary J. Brusca in 2003 is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sagittoidea
The Chaetognatha or chaetognaths (meaning ''bristle-jaws'') are a phylum of predatory marine worms that are a major component of plankton worldwide. Commonly known as arrow worms, about 20% of the known Chaetognatha species are benthic zone, benthic, and can attach to algae and rocks. They are found in all marine waters, from surface tropical waters and shallow tide pools to the deep sea and polar regions. Most chaetognaths are transparent and are torpedo shaped, but some deep-sea species are orange. They range in size from . There are more than 120 modern species assigned to over 20 genera. Despite the limited diversity of species, the number of individuals is large. Arrow worms are usually considered a type of protostome that do not belong to either Ecdysozoa or Lophotrochozoa. Anatomy Chaetognaths are transparent or translucent dart-shaped animals covered by a cuticle. The body is divided into a distinct head, trunk, and tail. There are between four and fourteen hooked, gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order (biology)
Order ( la, wikt:ordo#Latin, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between Family_(biology), family and Class_(biology), class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaetognatha
The Chaetognatha or chaetognaths (meaning ''bristle-jaws'') are a phylum of predatory marine worms that are a major component of plankton worldwide. Commonly known as arrow worms, about 20% of the known Chaetognatha species are benthic, and can attach to algae and rocks. They are found in all marine waters, from surface tropical waters and shallow tide pools to the deep sea and polar regions. Most chaetognaths are transparent and are torpedo shaped, but some deep-sea species are orange. They range in size from . There are more than 120 modern species assigned to over 20 genera. Despite the limited diversity of species, the number of individuals is large. Arrow worms are usually considered a type of protostome that do not belong to either Ecdysozoa or Lophotrochozoa. Anatomy Chaetognaths are transparent or translucent dart-shaped animals covered by a cuticle. The body is divided into a distinct head, trunk, and tail. There are between four and fourteen hooked, grasping spines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
