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Verrucapelma
''Verrucapelma'' is a genus of marine annelids in the family Polynoidae (scale worms). ''Verrucapelma'' contains three species which are known from shallow water down to a depth of about 90 m. All three species occur in the Indo-Pacific region, in the Coral Sea, northern Australia and the Indonesian archipelago.Hanley, J. R.; Burke, M. (1991). Polychaeta Polynoidae: Scaleworms of the Chesterfield Islands and Fairway Reefs, Coral Sea. in: Crosnier, A. Résultats des Campagnes MUSORSTOM 8. Mémoires du Muséum national d'Histoire naturelle. Série A, Zoologie. 151: 9-82 Description Species of ''Verrucapelma'' are short-bodied scale worms with 30 to about 39 segments and 15 pairs of elytra, the margins of which have a fringe of papillae. The prostomium The prostomium (From Ancient Greek, meaning "before the mouth"; plural: prostomia; sometimes also called the "acron") is the cephalized first body segment in an annelid worm's body at the anterior end. It is in front of (but doe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verrucapelma Conifera
''Verrucapelma nigricans'' is a scale worm, known from intertidal habitats in the South China Sea.Barnich R, Fiege D, Sun R (2004) Polychaeta (Annelida) of Hainan Island, South China sea Part III Aphroditoidea. Species Diversity 9: 285–329. https://doi.org/10.12782/specdiv.9.285. Description ''Verrucapelma conifera'' is a short-bodied scale worms with up to about 38 segments and 15 pairs of elytra, the margins of which have a few marginal papillae. The prostomium The prostomium (From Ancient Greek, meaning "before the mouth"; plural: prostomia; sometimes also called the "acron") is the cephalized first body segment in an annelid worm's body at the anterior end. It is in front of (but does not include) th ... is bilobed anteriorly and has a pair of cephalic peaks. The lateral antennae are located ventrally, directly beneath the median antenna and the distal part of the antennae have slender papillae. The neuropodial lobe is elongate and tapering and has two or three distin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verrucapelma Nigricans
''Verrucapelma nigricans'' is a scale worm known from the South China Sea from intertidal habitats.Hanley, J.R. & Burke, M. (1991) Polychaeta Polynoidae: Scaleworms of the Chesterfield Island and Fairway Reefs, Coral Sea. In: A. Crosnier (ed.), Résultats des Campagnes MUSORSTOM, Volume 8. Mémoires du Muséum national d’Histoire naturelle. Série A, Zoologie 151, 9–82. Description ''Verrucapelma nigricans'' is a short-bodied scale worm with up to about 39 segments and 15 pairs of elytra, the margins of which have a numerous long marginal papillae. The prostomium The prostomium (From Ancient Greek, meaning "before the mouth"; plural: prostomia; sometimes also called the "acron") is the cephalized first body segment in an annelid worm's body at the anterior end. It is in front of (but does not include) th ... is bilobed anteriorly and has a pair of cephalic peaks. The lateral antennae are located ventrally, directly beneath the median antenna and the distal part of the an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verrucapelma Retusa
''Verrucapelma retusa'' is a scale worm known from northern Australia, the Timor Sea and the Coral Sea from shallow water to depths of about 20 m.Hanley, J.R. & Burke, M. (1991) Polychaeta Polynoidae: Scaleworms of the Chesterfield Island and Fairway Reefs, Coral Sea. In: A. Crosnier (ed.), Résultats des Campagnes MUSORSTOM, Volume 8. Mémoires du Muséum national d’Histoire naturelle. Série A, Zoologie 151, 9–82. Description ''Verrucapelma retusa'' is a short-bodied worm with 35–36 segments and 15 pairs of elytra which bear a marginal fringe of papillae. The dorsum is covered with bands of brown-grey, which becomes fainter posteriorly. Lateral antennae are positioned beneath (ventral) on the prostomium The prostomium (From Ancient Greek, meaning "before the mouth"; plural: prostomia; sometimes also called the "acron") is the cephalized first body segment in an annelid worm's body at the anterior end. It is in front of (but does not include) th .... the notochaeta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polynoidae
Polynoidae is a family of marine Polychaete worms known as "scale worms" due to the scale-like elytra on the dorsal surface. Almost 900 species are currently recognised belonging to 9 subfamilies and 167 genera. They are active hunters, but generally dwell in protected environments such as under stones. The group is widely distributed from shallow intertidal waters to hadal trenches. They are the most diverse group of polychaetes in terms of genus number and second most diverse in terms of species number which is almost 8% of all segmented worm species. Description Most Polynoidae species are short and flattened, but can reach as much as 20 cm in length and 10 cm width in '' Eulagisca gigantea'' and '' Eulagisca uschakovi''. Individuals are usually covered almost entirely by elytra, which can be shed and regenerated in many species. The elytra of some species are faintly bioluminescent, and leave glowing traces around the mouthparts of their predators, making those pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annelids
The annelids (Annelida , from Latin ', "little ring"), also known as the segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches. The species exist in and have adapted to various ecologies – some in marine environments as distinct as tidal zones and hydrothermal vents, others in fresh water, and yet others in moist terrestrial environments. The Annelids are bilaterally symmetrical, triploblastic, coelomate, invertebrate organisms. They also have parapodia for locomotion. Most textbooks still use the traditional division into polychaetes (almost all marine), oligochaetes (which include earthworms) and leech-like species. Cladistic research since 1997 has radically changed this scheme, viewing leeches as a sub-group of oligochaetes and oligochaetes as a sub-group of polychaetes. In addition, the Pogonophora, Echiura and Sipuncula, previously regarded as separate phyla, are now regarded as sub-groups of po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indo-Pacific
The Indo-Pacific is a vast biogeographic region of Earth. In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the seas connecting the two in the general area of Indonesia. It does not include the temperate and polar regions of the Indian and Pacific oceans, nor the Tropical Eastern Pacific, along the Pacific coast of the Americas, which is also a distinct marine realm. The term is especially useful in marine biology, ichthyology, and similar fields, since many marine habitats are continuously connected from Madagascar to Japan and Oceania, and a number of species occur over that range, but are not found in the Atlantic Ocean. The region has an exceptionally high species richness, with the world's highest species richness being found in at its heart in the Coral Triangle, and a remarkable gradient of decreasing species richness radiating outwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coral Sea
The Coral Sea () is a marginal sea of the South Pacific off the northeast coast of Australia, and classified as an interim Australian bioregion. The Coral Sea extends down the Australian northeast coast. Most of it is protected by the French Natural Park of the Coral Sea (french: Parc Naturel de la Mer de Corail) and the Australian Coral Sea Marine Park. The sea was the location for the Battle of the Coral Sea, a major confrontation during World War II between the navies of the Empire of Japan, and the United States and Australia. The sea contains numerous islands and reefs, as well as the world's largest reef system, the Great Barrier Reef (GBR), which was declared a World Heritage Site by UNESCO in 1981. All previous oil exploration projects were terminated at the GBR in 1975, and fishing is restricted in many areas. The reefs and islands of the Coral Sea are particularly rich in birds and aquatic life and are a popular tourist destination, both domestically and inter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a sovereign ''Sovereign'' is a title which can be applied to the highest leader in various categories. The word is borrowed from Old French , which is ultimately derived from the Latin , meaning 'above'. The roles of a sovereign vary from monarch, ruler or ... country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. With an area of , Australia is the largest country by area in Oceania and the world's sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a megadiverse country, and its size gives it a wide variety of landscapes and climates, with deserts in the centre, tropical Forests of Australia, rainforests in the north-east, and List of mountains in Australia, mountain ranges in the south-east. The ancestors of Aboriginal Australians began arriving from south east Asia approx ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indonesian Archipelago
* See also: Names of Indonesia , location = Southeast Asia and Oceania , waterbody = * Indian Ocean * Pacific Ocean , total_islands = ± 17,000–18,000 islands , major_islands = , area_km2 = 8,300,000 , area_footnotes = , rank = , length_km = , length_footnotes = , width_km = , width_footnotes = , coastline_km = , coastline_footnotes = , elevation_m = 4,884 , elevation_footnotes = , highest_mount = Puncak Jaya , country = , country_admin_divisions_title = , country_admin_divisions = , country_admin_divisions_title_1 = , country_admin_divisions_1 = , country_admin_divisions_title_2 = , country_admin_divisions_2 = , country_capital_type = , country_capital = , country_largest_city_type = , country_largest_city = , country_capital_and_largest_city = , country_largest_city_population = , country_leader_title = President , country_leader_name = Joko Widodo , country_area_km2 = , country1 = , country1_admin_divisions_title = , country1_admin_div ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elytron (Annelida)
In annelids, elytra (; from Greek ἔλυτρον "sheath, cover"; singular: elytron ) are shield-like scales that are attached dorsally, one pair on each of a number of alternating segments and entirely or partly cover the dorsum. Elytra are modified dorsal cirri, and their number, size, location, and ornamentation are important taxonomic characters. The basal part of the elytra is known as the elytrophore; if (as is often the case) elytra are lost their presence is indicated by the elytrophore which is still present and visible. Annelids possessing elytra are also known as "scale worms". Possession of elytra is characteristic of the annelid suborder Aphroditiformia. Gallery File:Eunoe leiotentaculata lower res.jpg, A ''Eunoe leiotentaculata'' specimen showing its 15 pairs of elytra. File:Euphione sp. dorsal.jpg, ''Euphione ''Euphione'' is a genus of polychaetes belonging to the family Polynoidae. The species of this genus are found in Australia, Malesia Malesia is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prostomium
The prostomium (From Ancient Greek, meaning "before the mouth"; plural: prostomia; sometimes also called the "acron") is the cephalized first body segment in an annelid worm's body at the anterior end. It is in front of (but does not include) the mouth, being usually a small shelf- or lip-like extension over the dorsal side of the mouth. The prostomium together with the peristomium, which includes the mouth and pharynx, make up the annelid head. Description The prostomium is part of the head and holds at least part of the brain and often bears sensory structures such as the eyes, antennae and palps. It may function like a kind of overlip when the animal is feeding. The prostomium bears many important taxonomic characters and its shape and composition are important for annelid systematics. In addition to the eyes, antennae and palps, the prostomium can possess appendages such as tentacles or cirri. Moreover, some polychaete Polychaeta () is a paraphyletic class of gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parapodium
In invertebrates, the term parapodium ( Gr. ''para'', beyond or beside + ''podia'', feet; plural: parapodia) refers to lateral outgrowths or protrusions from the body. Parapodia are predominantly found in annelids, where they are paired, unjointed lateral outgrowths that bear the chaetae. In several groups of sea snails and sea slugs, 'parapodium' refers to lateral fleshy protrusions. __TOC__ Annelid parapodia Most species of polychaete annelids have paired, fleshy parapodia which are segmentally arranged along the body axis. Parapodia vary greatly in size and form, reflecting a variety of functions, such as gas exchange, anchorage, protection and locomotion. General description Parapodia in polychaetes can be uniramous (consisting of one lobe or ramus) but are usually biramous (two lobes or rami). In the latter case, the dorsal lobes are called notopodia and the ventral lobes neuropodia. Both neuropodia and notopodia may possess a bundle of chaetae (neurochaetae and notoch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
