|
Janolus Flavoanulatus
''Janolus flavoanulatus'' is a sea slug species. The specific name is derived from Latin words flavus (“yellow”) and anulatus (“ringed”). These soft-bodied mollusks are known for their extraordinary colors and prominent forms. The first description of this species was reported by researcher Terry Gosliner, a leading researcher in the evolutionary history of nudibranchs. Upon his conducted research in the Philippines, Gosliner named ''Janolus flavoanulatus'' for its yellow ring around its cerata. Distribution The presence of this species has been found in regions of Indian and Western Pacific oceans, the Philippines, Papua New Guinea, Japan, Solomon Islands, Red Sea, Indonesia, Vanuatu, Indonesia, and Australia. Although the global population of ''J. flavoanulatus'' is unassigned, researchers are drawing observations that suggest these species are becoming scarce due to the decline in biodiversity. Habitat and ecology The genus of ''Janolus'' resides in fluctuating t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terrence Gosliner
Publius Terentius Afer (; – ), better known in English as Terence (), was a Roman Africans, Roman African playwright during the Roman Republic. His comedies were performed for the first time around 166–160 BC. Terentius Lucanus, a Roman Roman Senate, senator, brought Terence to Rome as a slave, educated him and later on, impressed by his abilities, manumission, freed him. It is thought that Terence abruptly died, around the age of 25, likely in Greece or on his way back to Rome, due to shipwreck or disease. DEAD LINK He was supposedly on his way to explore and find inspiration for his comedies. His plays were heavily used to learn to speak and write in Latin during the Middle Ages and Renaissance , Renaissance Period, and in some instances were imitated by William Shakespeare. One famous quotation by Terence reads: "''Homo sum, humani nihil a me alienum puto''", or "I am human, and I think nothing human is alien to me." This appeared in his play ''Heauton Timorumenos''. B ... [...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] |
Gastropods Described In 2019
The gastropods (), commonly known as snails and slugs, belong to a large Taxonomy (biology), taxonomic class (taxonomy), class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and sea slug, slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Furongian, Late Cambrian. , 721 family (taxonomy), families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently neontology, extant living fossil, with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class (biology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proctonotidae
Proctonotidae is a family of sea slugs, nudibranchs, marine gastropod molluscs, in the clade Euthyneura.MolluscaBase (2018)Proctonotidae Gray, 1853.Accessed on 2020-10-20. Genera Genera in the family Proctonotidae include: * ''Caldukia'' Burn and Miller, 1969 * ''Proctonotus ''Proctonotus'' is a genus of sea slugs, or more accurately nudibranchs, marine gastropod molluscs in the family Proctonotidae Proctonotidae is a family of sea slugs, nudibranchs, marine gastropod molluscs, in the clade Euthyneura Euthyneur ...'' Alder, 1844 ;Genera brought into synonymy: * ''Venilia'' Alder & Hancock, 1844: synonym of ''Proctonotua'' Alder & Hancock, 1844 * ''Zephyrina'' Quatrefages, 1844: synonym of ''Proctonotus'' Alder & Hancock, 1844 References * Vaught, K.C. (1989). ''A classification of the living Mollusca''. American Malacologists: Melbourne, FL (USA). . XII, 195 pp {{Taxonbar, from=Q3198665 Taxa named by John Edward Gray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinophores Frilled Nudibranch
A rhinophore is one of a pair of chemosensory club-shaped, rod-shaped or ear-like structures which are the most prominent part of the external head anatomy in sea slugs, marine gastropod opisthobranch mollusks such as the nudibranchs, sea hares (Aplysiomorpha), and sap-sucking sea slugs ( Sacoglossa). Etymology The name relates to the rhinophore's function as an organ of "smell". ''Rhino-'' means nose from Ancient Greek ῥίς ''rhis'' and from its genitive ῥινός ''rhinos''. "Phore" means "to bear" from New Latin ''-phorus'' and from Greek -phoros (φορος) "bearing", a derivative of ''phérein'' (φέρειν). Function Rhinophores are scent or taste receptors, also known as chemosensory organs situated on the dorsal surface of the head. They are primarily used for distance chemoreception and rheoreception (response to water current). The "scents" detected by rhinophores are chemicals dissolved in the sea water. The fine structure and hairs of the rhinop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metamorphosis
Metamorphosis is a biological process by which an animal physically develops including birth or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation. Some insects, fish, amphibians, mollusks, crustaceans, cnidarians, echinoderms, and tunicates undergo metamorphosis, which is often accompanied by a change of nutrition source or behavior. Animals can be divided into species that undergo complete metamorphosis (" holometaboly"), incomplete metamorphosis ("hemimetaboly"), or no metamorphosis (" ametaboly"). Scientific usage of the term is technically precise, and it is not applied to general aspects of cell growth, including rapid growth spurts. Generally organisms with a larva stage undergo metamorphosis, and during metamorphosis the organism loses larval characteristics. References to "metamorphosis" in mammals are imprecise and only colloquial, but historically idealist ideas of transformation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nudibranch
Nudibranchs () are a group of soft-bodied marine gastropod molluscs which shed their shells after their larval stage. They are noted for their often extraordinary colours and striking forms, and they have been given colourful nicknames to match, such as "clown", "marigold", "splendid", "dancer", "dragon", or "sea rabbit". Currently, about 3,000 valid species of nudibranchs are known.Ocean Portal (2017)A Collage of Nudibranch Colors Smithsonian National Museum of Natural History. Retrieved 17 April 2018. The word "nudibranch" comes from the Latin "naked" and the Ancient Greek () "gills". Nudibranchs are often casually called sea slugs, as they are a family of opistobranchs (sea slugs), within the phylum Mollusca (molluscs), but many sea slugs belong to several taxonomic groups which are not closely related to nudibranchs. A number of these other sea slugs, such as the photosynthetic ''Sacoglossa'' and the colourful Aglajidae, are often confused with nudibranchs. Distribut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navanax Inermis 2
''Navanax'' is a genus of sea slugs, marine opisthobranch gastropod mollusks in the family Aglajidae Aglajidae is a family of often colorful, medium-sized, sea slugs, marine opisthobranch gastropod mollusks. These are not nudibranchs; instead they are headshield slugs, in the clade Cephalaspidea.Bouchet, P. (2012). Aglajidae. Accessed through: ....Bouchet, P. (2012). Navanax. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=224591 on 2012-05-17 Species Species in the genus ''Navanax'' include: * '' Navanax aenigmaticus'' (Bergh, 1893) - mysterious aglaja * '' Navanax gemmatus'' (Mörch, 1863) * '' Navanax inermis'' (J. G. Cooper, 1863) - California aglaja * '' Navanax orbignyanus'' (Rochebrune, 1881) * '' Navanax polyalphos'' (Gosliner & Williams, 1972) References * Rolán E., 2005. ''Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda''. Aglajidae {{Aglajidae-stu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navanax Inermis
''Navanax inermis'', common name the California aglaja, is a large species of predatory sea slug, a marine opisthobranch gastropod mollusk in the family Aglajidae. ''Navanax'' is not a nudibranch, even though it somewhat resembles one; it belongs to a more ancient lineage of opisthobranchs called the cephalaspideans or head shield slugs and snails. Description The body of ''N. inermis'' can be tan, black, or purple, with yellowish streaks. Yellow or orange streaks and blue dots are visible on the margins. It has two large parapodial folds that run the length of either side of the body, and almost touch at the midsection. This species possesses a small internal shell. Individuals are typically between 2.5 and 10 inches in length. ''Navanax inermis'' does not possess a radula or organs associated with vision. Distribution and habitat This species occurs in the eastern Pacific Ocean and Gulf of California. Its range is from Monterey, California to Baja California. ''Navanax ine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janolus Sp
''Janolus'' is a genus of small to large sea slugs, or more accurately nudibranchs, marine gastropod mollusks, in the family Janolidae. The name ''Janolus'' is derived from the two-headed god Janus, in ancient Roman mythology. Description Adult individuals of ''Janolus'' species can be between 2.5 cm to 8 cm long, depending on the species. They are semi-translucent and the body is covered in short cerata. Distribution ''Janolus'' species are found in many areas world-wide, including Europe, Australia, Japan and Africa. Ecology Habitat This genus of nudibranch is found in shallow and subtidal waters. Feeding habits ''Janolus'' species feed on Bryozoa, moss animals. Predators In California, ''Navanax'' is a known predator of ''Janolus''. ''Navanax'' tracks the slime of ''Janolus'' by using chemoreceptors. When ''Janolus'' is about to be caught, it rolls into a ball, leaving its cerata exposed. Species Species in the genus ''Janolus'' include:MolluscaBase (2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philippines
The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republika sang Filipinas * ibg, Republika nat Filipinas * ilo, Republika ti Filipinas * ivv, Republika nu Filipinas * pam, Republika ning Filipinas * krj, Republika kang Pilipinas * mdh, Republika nu Pilipinas * mrw, Republika a Pilipinas * pag, Republika na Filipinas * xsb, Republika nin Pilipinas * sgd, Republika nan Pilipinas * tgl, Republika ng Pilipinas * tsg, Republika sin Pilipinas * war, Republika han Pilipinas * yka, Republika si Pilipinas In the recognized optional languages of the Philippines: * es, República de las Filipinas * ar, جمهورية الفلبين, Jumhūriyyat al-Filibbīn is an archipelagic country in Southeast Asia. It is situated in the western Pacific Ocean and consists of around 7,641 islands t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photic Zone
The photic zone, euphotic zone, epipelagic zone, or sunlight zone is the uppermost layer of a body of water that receives sunlight, allowing phytoplankton to perform photosynthesis. It undergoes a series of physical, chemical, and biological processes that supply nutrients into the upper water column. The photic zone is home to the majority of aquatic life due to the activity (primary production) of the phytoplankton. Photosynthesis in photic zone In the photic zone, the photosynthesis rate exceeds the respiration rate. This is due to the abundant solar energy which is used as an energy source for photosynthesis by primary producers such as phytoplankton. These phytoplankton grow extremely quickly because of sunlight's heavy influence, enabling it to be produced at a fast rate. In fact, ninety five percent of photosynthesis in the ocean occurs in the photic zone. Therefore, if we go deeper, beyond the photic zone, such as into the compensation point, there is little to no phyto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
