|
Pterygioteuthis
''Pterygioteuthis'' is a genus of squid in the family Pyroteuthidae. Members are differentiated from the genus ''Pyroteuthis'' due to size and head shape. The genus is characterised by the presence of a lidded photophore over each eye. References External linksTree of Life web project: ''Pterygioteuthis'' Pterygioteuthis, Pyroteuthidae Bioluminescent molluscs {{squid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pterygioteuthis Giardi
''Pterygioteuthis giardi'' is a species of squid in the family Pyroteuthidae. It is known as the roundear enope squid. The Specific name (zoology), specific name honors the France, French Zoology, zoologist and Marine Biology, marine biologist Alfred Mathieu Giard (1846-1908). Anatomy and morphology Squid in the family Pyroteuthidae have Photophores (small, light-producing organs) on viscera (internal organs), stalk of tentacles, and five large and ten small photophores underneath the eyes. The squid has a wide, triangular mantle with a rounded posterior end and rounded fins on the distal dorsal end of the mantle. Their mantles are generally less than 34 mm long. Their tentacles look like bent clubs due to their permanent constriction. Adult squid in the ''Pterygioteuthis'' genera lack hooks on their tentacular clubs, but do have some hooks on the arms. Male squid have a specialized arm used to transfer sperm to females called hectocotyli. Females do not have suckers o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pterygioteuthis
''Pterygioteuthis'' is a genus of squid in the family Pyroteuthidae. Members are differentiated from the genus ''Pyroteuthis'' due to size and head shape. The genus is characterised by the presence of a lidded photophore over each eye. References External linksTree of Life web project: ''Pterygioteuthis'' Pterygioteuthis, Pyroteuthidae Bioluminescent molluscs {{squid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pterygioteuthis Gemmata
''Pterygioteuthis gemmata'' is a species of squid in the family Pyroteuthidae. References External linksTree of Life web project: ''Pterygioteuthis gemmata'' Pterygioteuthis Cephalopods described in 1908 Bioluminescent molluscs Taxa named by Carl Chun {{squid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pterygioteuthis Microlampas
''Pterygioteuthis microlampas'' is a species of squid in the family Pyroteuthidae. They occur from northern New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ... oceans to the Hawaiian Islands, but they do not overlap with the species '' P. gemmata'', which lives in more southern waters. While there are numerous similarities between these two species, they are separated by the smaller mature size of ''P. microlampas'' (maximum mantle length of 23 mm) and the fewer number of hooks on males. The species reproduce sexually during the late autumn to early winter, producing eggs with a diameter of 0.9 mm. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pterygioteuthis Hoylei
''Pterygioteuthis hoylei'' is a species of squid in the family Pyroteuthidae. It is considered conspecific with ''Pterygioteuthis giardi ''Pterygioteuthis giardi'' is a species of squid in the family Pyroteuthidae. It is known as the roundear enope squid. The Specific name (zoology), specific name honors the France, French Zoology, zoologist and Marine Biology, marine biologist Al ...'' by some authorities. It can be identified from ''P. giardi'' by having four photophores on the tentacles and many chromatophores spread along the tentacle stalk and around the aboral surface of the tentacular club. It is also slightly larger than ''P. giardi'', it has been so far recorded only from the eastern tropical Pacific Ocean where it is the only species of in the family Pyroteuthidae to occur there, although its actual distribution may be wider than currently known. The specific name honours the British malacologist William Evans Hoyle (1855–1926). References {{Taxonbar, f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyroteuthidae
Pyroteuthidae (the fire squids) is a family (biology), family of squids. The family comprises two genus, genera. Species are Diurnality, diurnally Mesopelagic zone, mesopelagic, migrating into surface waters during the night. The family is characterised by the tentacles, which have a permanent constriction and bend near the base; and photophores occurring on the tentacles, eyeballs, and Organ (biology), viscera. Members reach mantle (mollusc), mantle lengths of 23–50 mm. Paralarvae of the family are common around the Hawaiian Islands, with up to 17% of collected specimens in the area belonging to Pyroteuthidae.John R. Bower, Michael P. Seki, Richard E. Young, Keith A. Bigelow, Jed Hirota, Pierre FlamentCephalopod paralarvae assemblages in Hawaiian Islands waters 14 November 2008. Species *Genus ''Pterygioteuthis'' **''Pterygioteuthis gemmata'' **''Pterygioteuthis giardi'', roundear enope squid **''Pterygioteuthis hoylei'' **''Pterygioteuthis microlampas'' *Genus ''Pyroteuth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyroteuthis
''Pyroteuthis'' is a genus of squid in the family Pyroteuthidae. It is differentiated from the genus ''Pterygioteuthis'' by size, head shape and behaviour. Species within the genus are separated by the arrangement of tentacular photophores; the shape of the hectocotylus, and the shape of the hectocotylus hooks. With the exception of the Tropical Eastern Pacific, the genus is circumpolar in tropical and temperate oceans. The species '' P. addolux'' is the only member to occur in the North Pacific The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is bounded by the contine .... References External linksTree of Life web project: ''Pyroteuthis'' Pyroteuthidae Cephalopod genera Bioluminescent molluscs Taxa named by William Evans Hoyle {{squid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri Fischer
Henri is the French form of the masculine given name Henry, also in Estonian, Finnish, German and Luxembourgish. Bearers of the given name include: People French nobles * Henri I de Montmorency (1534–1614), Marshal and Constable of France * Henri I, Duke of Nemours (1572–1632), the son of Jacques of Savoy and Anna d'Este * Henri II, Duke of Nemours (1625–1659), the seventh Duc de Nemours * Henri, Count of Harcourt (1601–1666), French nobleman * Henri, Dauphin of Viennois (1296–1349), bishop of Metz * Henri de Gondi (other) * Henri de La Tour d'Auvergne, Duke of Bouillon (1555–1623), member of the powerful House of La Tour d'Auvergne * Henri Emmanuel Boileau, baron de Castelnau (1857–1923), French mountain climber * Henri, Grand Duke of Luxembourg (born 1955), the head of state of Luxembourg * Henri de Massue, Earl of Galway (1648–1720), French Huguenot soldier and diplomat, one of the principal commanders of Battle of Almansa * François-Henri de Montmo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Chun
Carl Chun or Karl Friedrich Gustav Chun (1 October 1852 – 11 April 1914) was a German marine biologist who worked as a professor at the Universities of Königsberg (1883), Breslau (1891) and Leipzig (1898). He was a pioneer of German oceanographic research, organizing the first deep-sea expedition aboard the ''SS Valdivia'' in 1898-99. He spent much of his life studying the collections made during the expedition, and was responsible for discovering many marine organisms, including the vampire squid. Life and work Chun was born in Höchst, today a part of Frankfurt, where his father Gustav (1827–1907) was rector of the Weißfrauenschule. Chun went to the Lessing Gymnasium and became interested in zoology from an early age thanks to the Senckenberg Museum in Frankfurt where he listened to lectures by Fritz Noll, Hermann Theodor Geyler, and Karl von Fritsch. He studied at the University of Göttingen and then at the University of Leipzig, receiving a doctorate in 1874. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Johann Pfeffer
Georg Johann Pfeffer (1854–1931) was a German zoologist, primarily a malacologist, a scientist who studies mollusks. Pfeffer was born in Berlin. In 1887 he became curator of the , which was established in 1843 and destroyed during World War II. Pfeffer's published writings were mainly about cephalopods. The World Register of Marine Species database lists 133 marine Taxon, taxa named by Pfeffer When Pfeffer's name is listed as an authority for a taxon such as the land snail genus ''Lamellaxis'' Hermann Strebel, Strebel & Pfeffer, 1882, his name is ''not'' simply an orthography, orthographic error for the more commonly encountered molluscan authority Pfeiffer, i.e. Ludwig Karl Georg Pfeiffer, who lived 50 years earlier, from 1805 to 1877. Georg Johann Pfeffer also studied amphibians and reptiles, naming several Species description, new species. Two species of reptiles are named in his honor, ''Calamaria pfefferi'' and ''Trioceros, Trioceros pfefferi''.Beolens, Bo; Watkins, Mic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squid
A squid (: squid) is a mollusc with an elongated soft body, large eyes, eight cephalopod limb, arms, and two tentacles in the orders Myopsida, Oegopsida, and Bathyteuthida (though many other molluscs within the broader Neocoleoidea are also called ''squid'' despite not strictly fitting these criteria). Like all other cephalopods, squid have a distinct head, Symmetry (biology)#Bilateral symmetry, bilateral symmetry, and a mantle (mollusc), mantle. They are mainly soft-bodied, like octopuses, but have a small internal skeleton in the form of a rod-like gladius (cephalopod), gladius or pen, made of chitin. Squid diverged from other cephalopods during the Jurassic and occupy a similar Ecological niche, role to teleost fish as open-water predators of similar size and behaviour. They play an important role in the open-water food web. The two long tentacles are used to grab prey and the eight arms to hold and control it. The beak then cuts the food into suitable size chunks for swal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photophore
A photophore is a specialized anatomical structure found in a variety of organisms that emits light through the process of boluminescence. This light may be produced endogenously by the organism itself (symbiotic) or generated through a mutualistic relationship with bioluminescent bacteria (non-symbiotic), resulting in light production on a glandular organ of animals. Light organs are most commonly found in marine animals, including many species of fish and cephalopods. The organ can be simple, or as complex as the human eye, equipped with lenses, shutters, color filters, and reflectors; unlike an eye, however, it is optimized to produce light, not absorb it. In the context of developmental biology, light organs form through precise genetic regulation and, in some cases, microbial colonization during specific stages of an organism's life cycle. They play a crucial evolutionary role in enabling species to adapt to low-light or dark environments, particularly in the deep sea. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
