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Murphydoris
''Murphydoris'' is a monotypic genus of sea slugs, specifically dorid nudibranchs, marine gastropod molluscs in the family Goniodorididae. Genus description ''Murphydoris singaporensis'' Sigurdsson, 1991 is the type species of the monotypic genus ''Murphydoris''. The generic name ''Murphydoris'' was created to honor the zoologist and ecologist D. H. Murphy, who is on the staff at the National University of Singapore. The characteristics of the genus ''Murphydoris'' is, that it lacks peri-anal ctenidia (comb-like respiratory gills); its rhinophores are non-lamellate and its radula formula is n x 1.1.0.1.1. The lateral teeth are unicuspid (= with a single tapering point) with 12 denticles and the marginal teeth are bicuspid. Distribution The type locality for ''Murphydoris singaporensis'' is mangroves between Kranji and Sungei Buloh Wetland Reserve in Singapore. Species description ''Murphydoris singaporensis'' was firstly collected by Jon B. Sigurdsson, and was desc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Murphydoris Maracabranchia
''Murphydoris'' is a monotypic genus of sea slugs, specifically dorid nudibranchs, marine gastropod molluscs in the family Goniodorididae. Genus description ''Murphydoris singaporensis'' Sigurdsson, 1991 is the type species of the monotypic genus ''Murphydoris''. The generic name ''Murphydoris'' was created to honor the zoologist and ecologist D. H. Murphy, who is on the staff at the National University of Singapore. The characteristics of the genus ''Murphydoris'' is, that it lacks peri-anal ctenidia (comb-like respiratory gills); its rhinophores are non-lamellate and its radula formula is n x 1.1.0.1.1. The lateral teeth are unicuspid (= with a single tapering point) with 12 denticles and the marginal teeth are bicuspid. Distribution The type locality for ''Murphydoris singaporensis'' is mangroves between Kranji and Sungei Buloh Wetland Reserve in Singapore. Species description ''Murphydoris singaporensis'' was firstly collected by Jon B. Sigurdsson, and w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Murphydoris Cobbi
''Murphydoris'' is a monotypic genus of sea slugs, specifically dorid nudibranchs, marine gastropod molluscs in the family Goniodorididae. Genus description ''Murphydoris singaporensis'' Sigurdsson, 1991 is the type species of the monotypic genus ''Murphydoris''. The generic name ''Murphydoris'' was created to honor the zoologist and ecologist D. H. Murphy, who is on the staff at the National University of Singapore. The characteristics of the genus ''Murphydoris'' is, that it lacks peri-anal ctenidia (comb-like respiratory gills); its rhinophores are non-lamellate and its radula formula is n x 1.1.0.1.1. The lateral teeth are unicuspid (= with a single tapering point) with 12 denticles and the marginal teeth are bicuspid. Distribution The type locality for ''Murphydoris singaporensis'' is mangroves between Kranji and Sungei Buloh Wetland Reserve in Singapore. Species description ''Murphydoris singaporensis'' was firstly collected by Jon B. Sigurdsson, and w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Murphydoris Adusta
''Murphydoris'' is a monotypic genus of sea slugs, specifically dorid nudibranchs, marine gastropod molluscs in the family Goniodorididae. Genus description ''Murphydoris singaporensis'' Sigurdsson, 1991 is the type species of the monotypic genus ''Murphydoris''. The generic name ''Murphydoris'' was created to honor the zoologist and ecologist D. H. Murphy, who is on the staff at the National University of Singapore. The characteristics of the genus ''Murphydoris'' is, that it lacks peri-anal ctenidia (comb-like respiratory gills); its rhinophores are non-lamellate and its radula formula is n x 1.1.0.1.1. The lateral teeth are unicuspid (= with a single tapering point) with 12 denticles and the marginal teeth are bicuspid. Distribution The type locality for ''Murphydoris singaporensis'' is mangroves between Kranji and Sungei Buloh Wetland Reserve in Singapore. Species description ''Murphydoris singaporensis'' was firstly collected by Jon B. Sigurdsson, and w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goniodorididae
Goniodorididae are a taxonomic family of sea slugs, specifically dorid nudibranchs, marine gastropod molluscs in the order Opisthobranchia. Genera Genera in the family Goniodorididae include: * '' Ancula'' Lovén, 1846 * ''Goniodoris ''Goniodoris'' is a genus of sea slugs, specifically dorid nudibranchs, marine gastropod molluscs in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marri ...'' Forbes & Goodsir, 1939 * '' Goniodoridella ''Pruvot-Fol, 1933 * '' Lophodoris'' G. O. Sars, 1878 * '' Murphydoris'' Sigurdsson, 1991 * '' Okenia'' Menke, 1830 - synonyms: ''Idalia'' Leuckart, 1828; ''Idaliella'' Bergh, 1881; ''Idalina'' Norman, 1890; ''Cargoa'' Vogel & Schultz, 1970; ''Ceratodoris'' Gray, 1850; ''Hopkinsia'' MacFarland, 1905; ''Sakishimaia'' Hamatani, 2001;Gosliner T. M. (2004). "Phylogenetic Systematics of ''Okenia'', ''Sakishmaia'', ''Hopkinsiella'' and ''Hopkinsia'' (Nudibranchia: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radula
The radula (, ; plural radulae or radulas) is an anatomical structure used by molluscs for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food enters the esophagus. The radula is unique to the molluscs, and is found in every class of mollusc except the bivalves, which instead use cilia, waving filaments that bring minute organisms to the mouth. Within the gastropods, the radula is used in feeding by both herbivorous and carnivorous snails and slugs. The arrangement of teeth ( denticles) on the radular ribbon varies considerably from one group to another. In most of the more ancient lineages of gastropods, the radula is used to graze, by scraping diatoms and other microscopic algae off rock surfaces and other substrates. Predatory marine snails such as the Naticidae use the radula plus an acidic secretion to bore through the shell of other molluscs. Other predatory marine snails ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hedgehog
A hedgehog is a spiny mammal of the subfamily Erinaceinae, in the eulipotyphlan family Erinaceidae. There are seventeen species of hedgehog in five genera found throughout parts of Europe, Asia, and Africa, and in New Zealand by introduction. There are no hedgehogs native to Australia and no living species native to the Americas. However, the extinct genus ''Amphechinus'' was once present in North America. Hedgehogs share distant ancestry with shrews (family Soricidae), with gymnures possibly being the intermediate link, and they have changed little over the last fifteen million years. Like many of the first mammals, they have adapted to a nocturnal way of life. Their spiny protection resembles that of porcupines, which are rodents, and echidnas, a type of monotreme. Etymology The name ''hedgehog'' came into use around the year 1450, derived from the Middle English ''heyghoge'', from ''heyg'', ''hegge'' ("hedge"), because it frequents hedgerows, and ''hoge'', ''hogge'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spicule , wart-shaped outgrowths of body tissue
{{Disambiguation ...
Spicules are any of various small needle-like anatomical structures occurring in organisms Spicule may also refer to: *Spicule (sponge), small skeletal elements of sea sponges *Spicule (nematode), reproductive structures found in male nematodes (roundworms) *Spicule (solar physics), jets of solar material from the Sun * Spicule (glass manufacture), glass flakes formed in the production of glass vials. See also *Ossicle, any various small bones *Process (anatomy), any outgrowths of tissue *Sclerite, hardened body parts of invertebrates *Spikelet, the inflorescence of grasses *Stylet (anatomy), a piercing structure *Tubercle In anatomy, a tubercle (literally 'small tuber', Latin for 'lump') is any round nodule, small eminence, or warty outgrowth found on external or internal organs of a plant or an animal. In plants A tubercle is generally a wart-like projection ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tentacle
In zoology, a tentacle is a flexible, mobile, and elongated organ present in some species of animals, most of them invertebrates. In animal anatomy, tentacles usually occur in one or more pairs. Anatomically, the tentacles of animals work mainly like muscular hydrostats. Most forms of tentacles are used for grasping and feeding. Many are sensory organs, variously receptive to touch, vision, or to the smell or taste of particular foods or threats. Examples of such tentacles are the eyestalks of various kinds of snails. Some kinds of tentacles have both sensory and manipulatory functions. A tentacle is similar to a cirrus, but a cirrus is an organ that usually lacks the tentacle's strength, size, flexibility, or sensitivity. A nautilus has cirri, but a squid has tentacles. Invertebrates Molluscs Many molluscs have tentacles of one form or another. The most familiar are those of the pulmonate land snails, which usually have two sets of tentacles on the head: when extended ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horse Shoe
A horseshoe is a fabricated product designed to protect a horse hoof from wear. Shoes are attached on the palmar surface (ground side) of the hooves, usually nailed through the insensitive hoof wall that is anatomically akin to the human toenail, although much larger and thicker. However, there are also cases where shoes are glued. Horseshoes are available in a wide variety of materials and styles, developed for different types of horse and for the work they do. The most common materials are steel and aluminium, but specialized shoes may include use of rubber, plastic, magnesium, titanium, or copper.Price, Steven D. (ed.) ''The Whole Horse Catalog: Revised and Updated'' New York:Fireside 1998 , pp. 84–87. Steel tends to be preferred in sports in which a strong, long-wearing shoe is needed, such as polo, eventing, show jumping, and western riding events. Aluminium shoes are lighter, making them common in horse racing where a lighter shoe is desired, and often facilitate cert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mantle (mollusc)
The mantle (also known by the Latin word pallium meaning mantle, robe or cloak, adjective pallial) is a significant part of the anatomy of molluscs: it is the dorsal body wall which covers the visceral mass and usually protrudes in the form of flaps well beyond the visceral mass itself. In many species of molluscs the epidermis of the mantle secretes calcium carbonate and conchiolin, and creates a shell. In sea slugs there is a progressive loss of the shell and the mantle becomes the dorsal surface of the animal. The words mantle and pallium both originally meant cloak or cape, see mantle (vesture). This anatomical structure in molluscs often resembles a cloak because in many groups the edges of the mantle, usually referred to as the ''mantle margin'', extend far beyond the main part of the body, forming flaps, double-layered structures which have been adapted for many different uses, including for example, the siphon. Mantle cavity The ''mantle cavity'' is a central fea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ctenostomatida
The Ctenostomatida are an order of bryozoans in the class Gymnolaemata. The great majority of ctenostome species are marine, although ''Paludicella'' inhabits freshwater. They are distinguished from their close relatives, the cheilostomes, by their lack of a calcified exoskeleton. Instead, the exoskeleton is chitinous, gelatinous, or composed only of a soft membrane, and always lacks an operculum. Colonies of ctenostomes are often composed of elongated, branch-like stolon In biology, stolons (from Latin '' stolō'', genitive ''stolōnis'' – "branch"), also known as runners, are horizontal connections between organisms. They may be part of the organism, or of its skeleton; typically, animal stolons are external s ...s, although more compact forms also exist. References Protostome orders {{bryozoan-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
