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Harpa Jónsdóttir
''Harpa'', common name the "harp snails", is a genus of large predatory sea snails, marine gastropod mollusks in the family Harpidae.Gofas, S.; Bouchet, P. (2015). Harpa Röding, 1798. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=205853 on 2016-02-28 ''Harpa'' is the type genus of the family Harpidae. Description The shell has an ovate-oblong shape. It is more or less inflated, generally pretty thin, enamelled, and provided with parallel, longitudinal, inclined and acute ribs.The body whorl is much larger than all the others together. The spire is slightly elevated. The aperture is large, oval, dilated, strongly emarginated inferiorly, and without siphonal canal. The outer lip is bordered by the last rib. The columella is smooth, simple, nearly straight and pointed at the base. The animal has a flattened head, which supports a pair of long, thick, and conical tentacles, with a small protube ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harpa Major
''Harpa major'', commonly known by the English vernacular names large harp, or alternatively as the major harp,The Encyclopedia of Shells 1998 Kenneth R. Wye is a notable species of large predatory sea snail. These fascinating marine gastropod mollusks belong to the family Harpidae, a group collectively known as the harp snails and their close allies.Rosenberg, G. (2015). Harpa major Röding, 1798. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=208166 on 2016-02-28 Description The shells of ''Harpa major'' vary considerably in size among individuals, typically measuring between approximately 60 mm and 130 mm in length at maturity. Average adult specimens of this species reach about inches (approximately 8.9 cm) in length, and their shells are characterized by an ovate overall body shape and possess a notably heavily calloused spire. The columella, which forms the central, lower p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nocturnal
Nocturnality is a ethology, behavior in some non-human animals characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnality, diurnal meaning the opposite. Nocturnal creatures generally have highly developed senses of hearing (sense), hearing, olfaction, smell, and specially adapted eyesight. Some animals, such as ferrets, have eyes that can adapt to both low-level and bright day levels of illumination (see metaturnal). Others, such as bushbaby, bushbabies and (some) bats, can function only at night. Many nocturnal creatures including tarsier, tarsiers and some owl, owls have large eyes in comparison with their body size to compensate for the lower light levels at night. More specifically, they have been found to have a larger cornea relative to their eye size than diurnal creatures to increase their : in the low-light conditions. Nocturnality helps wasps, such as ''Apoica flavissima'', avoid hunting in intens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harpa Davidis
''Harpa davidis'', common name the Madras harp or David harp, is a species of sea snail, a marine gastropod mollusk in the family (biology), family Harpidae, the harp snails. Distribution This species is widespread over Indo-Pacific, from eastern Africa to Hawaii and it is present in the South Eastern India and in the Andaman Sea. Habitat The ''Madras harp'' lives on sublittoral and offshore sandy bottoms at depths of 5 to 250 m. Description Shells of ''Harpa davidis'' can reach a size of . These shells are usually smoothy and glossy, pale brown or reddish-brown, with strong axial ribs, a wide aperture and characteristic decorative markings. The ventral side of body whorl usually shows two-three large brown blotches,[ftp://ftp.fao.org/docrep/fao/009/w7191e/w7191e53.pdf FAO – Horse conchs, spindle shells] but may also be completely brown. Bibliography * Hughes, R.N. and W.K. Emerson. 1987. Anatomical and taxonomic characteristics of * HarpaandMorum(Neogastropoda: Harpa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harpa Crenata
''Harpa crenata'', common name the Panama harp, is a species of sea snail, a marine gastropod mollusk in the family Harpidae, the harp snails. Description The size of the shell varies between 50 mm and 100 mm. Distribution This marine species occurs in the Gulf of California, Western Mexico down to Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ... References * DANCE, S.P. & G.T. POPPE, 1999 ''Family Harpidae''. In : A Conchological Iconography (ConchBooks, ed.), 69 p. External links * crenata Gastropods described in 1822 {{Harpidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harpa Costata
''Harpa costata'', common name the ribbed harp, is a species of sea snail, a marine gastropod mollusk in the family Harpidae, the harp snails. Description The size of the shell varies between 60 mm and 110 mm. Distribution This species is found in the western Indian Ocean, particularly Mauritius Mauritius, officially the Republic of Mauritius, is an island country in the Indian Ocean, about off the southeastern coast of East Africa, east of Madagascar. It includes the main island (also called Mauritius), as well as Rodrigues, Ag ... and Rodrigues Island. References costata Gastropods described in 1758 Taxa named by Carl Linnaeus {{Harpidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harpa Cabriti
''Harpa cabriti'', previously known as ''Harpa ventricosa'' Lamarck, 1816,Rehder H. A. (1992). "''Harpa cabriti'' Fischer, 1860, a replacement name for ''Harpa ventricosa'' Lamarck, 1816". ''The Nautilus'' 106(3)123124. common name the ventral harp, is a species of large sea snail, a predatory marine gastropod mollusk in the family Harpidae, the harp snails.Bouchet, P. (2015). Harpa cabriti P. Fischer, 1860. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=403831 on 2016-05-26 The shell is often collected by shell-collecting hobbyists. Description The pretty large, oval shell is ventricose, and polished. It is ornamented with more or less distant, wide, compressed, smooth, parallel ribs, inclined towards the base, of a pale rose color, most commonly with quadrangular deep brown spots. These ribs are pointed at their summit, and a little below these form a slight keel, caused by small asperities ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harpa Articularis
''Harpa articularis'', common name the articulate harp shell, is a species of sea snail, a marine gastropod mollusk in the family Harpidae, the harp snails. Description The size of the shell varies between 50 mm and 110 mm. The rather thin shell is ovate and ventricose. The spire is conical, indistinctly muricated. The ribs are pretty narrow, distant and slightly flattened. They are marked by transverse brown lines, articulated and winding like light festoons. Between these lines appear white and violet spots. The interstices between the ribs are grayish. The longitudinal waved lines which are there seen, are strongly arched, and very contiguous to each other. They form species of transverse bands, at the origin of which exists a triangular brown chestnut-colored spot. The sharpest angle of this spot is continued sometimes into the interstices, in the middle of the narrow and white bands formed by the bars to the number of twelve upon the body whorl. The brown bars ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harpa Amouretta
''Harpa amouretta'', common name the lesser harp, is a species of sea snail, a marine gastropod mollusk in the family (biology), family Harpidae, the harp snails. Description As ''Harpa harpa'', up to 7 cm, with 11–14 axial ribs and higher spire. Colour white with cream and pale brown banding. Columella with large, central purple blotch; aperture white. The ovate shell is oblong. It is rather small and slightly elongated. The Whorl (mollusc), whorls of the Spire (mollusc), spire are distinct and mucronated (= ending in an abruptly tapering point). The body whorl has eleven or twelve narrow and slightly elevated longitudinal ribs, the surface of which, of a yellow ground, is crossed transversely by a great number of very fine blackish lines, which approach alternately, two by two. The intervals of the ribs are marked with very thin and delicate longitudinal striae, and with brown and whitish lines undulating in bars. Sometimes one or two whitish bands are observed upon the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Australia
Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a land area of , and is also the List of country subdivisions by area, second-largest subdivision of any country on Earth. Western Australia has a diverse range of climates, including tropical conditions in the Kimberley (Western Australia), Kimberley, deserts in the interior (including the Great Sandy Desert, Little Sandy Desert, Gibson Desert, and Great Victoria Desert) and a Mediterranean climate on the south-west and southern coastal areas. the state has 2.965 million inhabitants—10.9 percent of the national total. Over 90 percent of the state's population live in the South-West Land Division, south-west corner and around 80 percent live in the state capital Perth, leaving the remainder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queensland
Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south, respectively. To the east, Queensland is bordered by the Coral Sea and the Pacific Ocean; to the state's north is the Torres Strait, separating the Australian mainland from Papua New Guinea, and the Gulf of Carpentaria to the north-west. With an area of , Queensland is the world's List of country subdivisions by area, sixth-largest subnational entity; it List of countries and dependencies by area, is larger than all but 16 countries. Due to its size, Queensland's geographical features and climates are diverse, and include tropical rainforests, rivers, coral reefs, mountain ranges and white sandy beaches in its Tropical climate, tropical and Humid subtropical climate, sub-tropical c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Territory
The Northern Territory (abbreviated as NT; known formally as the Northern Territory of Australia and informally as the Territory) is an states and territories of Australia, Australian internal territory in the central and central-northern regions of Australia. The Northern Territory shares its borders with Western Australia to the west (129th meridian east), South Australia to the south (26th parallel south), and Queensland to the east (138th meridian east). To the north, the Northern Territory looks out to the Timor Sea, the Arafura Sea, and the Gulf of Carpentaria, including Western New Guinea and various other islands of the Indonesian archipelago. The NT covers , making it the third-largest Australian federal division, and List of country subdivisions by area, the 11th-largest country subdivision in the world. It is sparsely populated, with a population of only 249,000 – fewer than half the population of Tasmania. The largest population centre is the capital city of Darw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crabs
Crabs are decapod crustaceans of the infraorder Brachyura (meaning "short tailed" in Greek), which typically have a very short projecting tail-like abdomen, usually hidden entirely under the thorax. Their exoskeleton is often thickened and hard. They generally have five pairs of legs, and they have "pincers" or "claws" on the ends of the frontmost pair, scientifically termed the '' chelae''. They are present in all the world's oceans, in freshwater, and on land, often hiding themselves in small crevices or burrowing into sediment. Crabs are omnivores, feeding on a variety of food, including a significant proportion of algae, as well as detritus and other invertebrates. Crabs are widely consumed by humans as food, with over 1.5 million tonnes caught annually. True crabs first appeared in the fossil record during the Jurassic period, around 200 million years ago, achieving great diversity by the Cretaceous period; around 7,000 extant species in 96 families are known. A numb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
