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Rhabdus Aequatorius
The Rhabdidae are scaphopod members of the same molluscan family, belonging to the order Dentaliida. It includes only one genus, ''Rhabdus'', and five species, as follows: *'' Rhabdus aequatorius'' (Pilsbry & Sharp, 1897) *'' Rhabdus dalli'' (Pilsbry & Sharp, 1897) *'' Rhabdus perceptus'' (Mabille & Rochebrune, 1889) *''Rhabdus rectius ''Rhabdus rectius'', also known as a straight tusk shell, is a species of scaphopod, a small marine mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or ...'' (Carpenter, 1864) *'' Rhabdus toyamaense'' (Kuroda & Kikuchi, 1933) References {{Taxonbar, from1=Q3787803, from2=Q18548141 Scaphopods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhabdus Rectius
''Rhabdus rectius'', also known as a straight tusk shell, is a species of scaphopod, a small marine mollusc 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 esti ... native to the coast of central California whose shell, like that of all the members of its order, resembles a tusk. Most members of the scaphopoda have shells that exhibit a noticeable and characteristic anterior curvature— the shell of ''R. rectius'', however, is unusually straight, hence the Latin word "rectius" (literally, "straight") in its binomial designation. ''R. rectius'' is a generalist carnivore found in shallow silty and sandy substrates. Aside from the usual diet of foraminiferans, it also eats sediment and fecal pellets. Its thin, straight shell becomes fragile when dehydrated. Some adult specimens are m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusc
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 gastropods ... [...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] |
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] |
Dentaliida
Dentaliida is one of the two orders of scaphopod mollusks, commonly known as elephant's tusk shells. The order Dentaliida contains most of the larger scaphopods, and is distinguished from the other order (the Gadilidae) by the shape of its shell (the Dentaliid shell tapers uniformly from anterior to posterior; the Gadilid one has an anterior shell opening slightly smaller than the shell's widest point), the shape of the foot (the Dentaliid foot is boat-shaped with a central trough; the Gadilid foot is star-shaped), and the arrangement of some of their internal organs. Families * Anulidentaliidae * Calliodentaliidae * Dentaliidae * Fustiariidae * Gadilinidae * Laevidentaliidae Laevidentaliidae is a family of relatively large tusk shells, scaphopod mollusks in the order Order, ORDER or Orders may refer to: * Categorization, the process in which ideas and objects are recognized, differentiated, and understood * Het ... * Omniglyptidae * Rhabdidae References Sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhabdus Aequatorius
The Rhabdidae are scaphopod members of the same molluscan family, belonging to the order Dentaliida. It includes only one genus, ''Rhabdus'', and five species, as follows: *'' Rhabdus aequatorius'' (Pilsbry & Sharp, 1897) *'' Rhabdus dalli'' (Pilsbry & Sharp, 1897) *'' Rhabdus perceptus'' (Mabille & Rochebrune, 1889) *''Rhabdus rectius ''Rhabdus rectius'', also known as a straight tusk shell, is a species of scaphopod, a small marine mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or ...'' (Carpenter, 1864) *'' Rhabdus toyamaense'' (Kuroda & Kikuchi, 1933) References {{Taxonbar, from1=Q3787803, from2=Q18548141 Scaphopods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhabdus Dalli
The Rhabdidae are scaphopod members of the same molluscan family, belonging to the order Dentaliida. It includes only one genus, ''Rhabdus'', and five species, as follows: *''Rhabdus aequatorius'' (Pilsbry & Sharp, 1897) *'' Rhabdus dalli'' (Pilsbry & Sharp, 1897) *'' Rhabdus perceptus'' (Mabille & Rochebrune, 1889) *''Rhabdus rectius ''Rhabdus rectius'', also known as a straight tusk shell, is a species of scaphopod, a small marine mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or ...'' (Carpenter, 1864) *'' Rhabdus toyamaense'' (Kuroda & Kikuchi, 1933) References {{Taxonbar, from1=Q3787803, from2=Q18548141 Scaphopods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhabdus Perceptus
The Rhabdidae are scaphopod members of the same molluscan family, belonging to the order Dentaliida. It includes only one genus, ''Rhabdus'', and five species, as follows: *''Rhabdus aequatorius'' (Pilsbry & Sharp, 1897) *''Rhabdus dalli'' (Pilsbry & Sharp, 1897) *'' Rhabdus perceptus'' (Mabille & Rochebrune, 1889) *''Rhabdus rectius ''Rhabdus rectius'', also known as a straight tusk shell, is a species of scaphopod, a small marine mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or ...'' (Carpenter, 1864) *'' Rhabdus toyamaense'' (Kuroda & Kikuchi, 1933) References {{Taxonbar, from1=Q3787803, from2=Q18548141 Scaphopods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhabdus Toyamaense
The Rhabdidae are scaphopod members of the same molluscan family, belonging to the order Dentaliida. It includes only one genus, ''Rhabdus'', and five species, as follows: *''Rhabdus aequatorius'' (Pilsbry & Sharp, 1897) *''Rhabdus dalli'' (Pilsbry & Sharp, 1897) *''Rhabdus perceptus'' (Mabille & Rochebrune, 1889) *''Rhabdus rectius ''Rhabdus rectius'', also known as a straight tusk shell, is a species of scaphopod, a small marine mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or ...'' (Carpenter, 1864) *'' Rhabdus toyamaense'' (Kuroda & Kikuchi, 1933) References {{Taxonbar, from1=Q3787803, from2=Q18548141 Scaphopods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
