Phocidae Gray, 1821 References . Confused by a class within a class or The postweaning fast ranges from two weeks in the hooded seal to 9–12 weeks in the northern elephant seal. However, despite morphological specialization, most phocids are opportunistic and employ multiple strategies to capture and eat prey. It's including 18 extant species. [8][9][10][5] The Monachinae (known as the "southern" seals), is composed of three tribes; the Lobodontini, Miroungini, and Monachini. This is unlike sea lions which are able to use their hind flippers to almost walk while on shore. [1] Other early fossil phocids date from the mid-Miocene, 15 million years ago in the north Atlantic. Before the pup is ready to forage, the mother abandons it, and the pup consumes its own fat for weeks or even months while it matures. classification In pinniped: Classification and paleontology Family Phocidae (true, or earless, seals) 18 species in 10 genera. IB Biology notes on 5.5 Classification. However, because they cannot turn their hind flippers downward, they are very clumsy on land, having to wriggle with their front flippers and abdominal muscles. Otarids were the first group to split off; walruses and phocids share a more recent ancestor and are more closel… [18] The physiological and behavioral adaptations that allow phocid pups to endure these remarkable fasts, which are among the longest for any mammal, remain an area of active study and research. True Seals are distinguished in the way they move on the beach in a crawling manner. Part of the order Carnivora, pinnipeds are divided into three main families: Phocidae (the true seals), Otariidae (sea lions and fur seals), and Odobenidae (walruses). The spider family Pholcidae, commonly known as Cellar Spiders, have been sighted 177 times by contributing members. The phocids along with the other two families of current pinnipeds, the otariids (fur seals and sea lions) and odobenids (walrus), appear to have evolved from a single linea… Family. [11] Likewise, subfamily Phocinae (the "northern" seals) also includes three tribes; Erignathini (Erignathus), Cystophorini (Cystophora), and Phocini (all other phocines). Mammal Species of the World – A Taxonomic and Geographic Reference. Family Phocidae - True seals (19 species in 10 genera) The true, or earless, seals include the largest of the pinnipeds, the elephant seals. The Phocinae contains five genera and the Monchinae six genera. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Wilson, Don E. & Reeder, DeeAnn M. (Editors) 2005. The mother ends nursing by leaving her pup at the breeding site to search for food (pups continue to nurse if given the opportunity). While otariids are known for speed and maneuverability, phocids are known for efficient, economical movement. National Science Foundation Phocid respiratory and circulatory systems are adapted to allow diving to considerable depths, and they can spend a long time underwater between breaths. [12], Alternatively the three monachine tribes have been evaluated to familiar status, which elephant seals and the Antarctic seals are more closely related to the phocines. The family Phocidae is the oldest of the modern day pinnipeds, with the oldest fossil phocid reported from the late Oligocene or about 25–30 million years ago. an order within an order? Vernacular names . [15] Their fore flippers are used primarily for steering, while their hind flippers are bound to the pelvis in such a way that they cannot bring them under their bodies to walk on them. [1] Phocids spend most of their time at sea, although they return to land or pack ice to breed and give birth. The earless seals, phocids or true seals are one of the three main groups of mammals within the seal lineage, Pinnipedia. Seal pups typically eat no food and drink no water during the period, although some polar species eat snow. Seals live in the oceans of both hemispheres and, with the exception of the more tropical monk seals, are mostly confined to polar, subpolar, and temperate climates. Instead, they communicate by slapping the water and grunting. Each of these feeding strategies is aided by a specialized skull, mandible, and tooth morphology. This combination of fasting with lactation requires the mother to provide large amounts of energy to her pup at a time when she is not eating (and often, not drinking). Disclaimer: Pholcid spiders are also known as cellar spiders or daddy long-legs spiders which is very confusing as this name is also shared with harvestmen, which look like spiders, but are actually most closely related to either mites or scorpions in North America. The Phocidae can be divided into two sub-families: the Monachinae, with 2n = 34 chromosomes, consisting of the southern phocids, the southern and northern elephant seals and the monk seals; and the Phocinae, or northern seals, with 2n = 34 chromosomes (bearded seal, Erignatus barbatus, and hooded seal, Cystophora cristata) and … Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. 2–3.1.4.0–21–2.1.4.0–2. Seals need to eat about 30 to 50 pounds of food almost every day, but they fast (don’t eat) during the breeding season. A smooth layer of blubber lies underneath the skin. Phocidae : Other Source(s): Source: List of Marine Mammal Species and Subspecies, website (version Aug 2018) Acquired: 2019 : Notes: Committee on Taxonomy. [15], Phocids are more specialized for aquatic life than otariids. Phocids make use of at least four different feeding strategies: suction feeding, grip, and tear feeding, filter feeding, and pierce feeding. An Phocidae in uska familia han Mammalia.An Phocidae in nahilalakip ha ordo nga Carnivora, classis nga Mammalia, phylum nga Chordata, ngan regnum nga Animalia. The grey seal classification for family is Phocidae and its class is mammalia. The Baikal seal is the only species of exclusively freshwater seal. Afrikaans: Robbe Meronyms (members of "Phocidae"): earless seal; hair seal; true seal (any of several seals lacking external ear flaps and having a stiff hairlike coat with hind limbs reduced to swimming flippers). They organize them into groups and then smaller subgroups of that group. The Phocidae were placed as the sister group to a common odobenid-otariid clade. Refer to the article's text about the interrelationships among the phocid subfamilies. Pholcidae is most often … Ang Phocidae sakop sa kahanay nga Carnivora , kahutong nga mamipero , ka-ulo nga maybukobuko , ug kaginharian nga mananap . Status: IUCN - Data Deficient as P. v. mellonae, otherwise Lower Risk (lc) Comments: The position of stegjnegeri remains uncertain; Scheffer (1958) placed it in largha; J. E. King (1983) placed it in vitulina; and Shaughnessy and Fay (1977) suggested incertae sedis. Seals, like all marine mammals, need time to develop the oxygen stores, swimming muscles, and neural pathways necessary for effective diving and foraging. Phocidae is an example of a taxonomic group. Please see our brief essay. Unlike otariids, true seals do not communicate by 'barking'. Los fócidos o foques verdaderes (Phocidae) son una familia de mamíferos pinnípedos marinos afechos a vivir en medios acuáticos la mayor parte del tiempu. Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students.ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. [1][3] Until recently, many researchers believed that phocids evolved separately from otariids and odobenids; and that they evolved from otter-like animals, such as Potamotherium, which inhabited European freshwater lakes. Phocidae definition is - a family of mammals (suborder Pinnipedia) comprising the hair seals and lacking external ears. 2021. Some species lack molars altogether. Based on collected data, the geographic range for Pholcidae includes 16 countries and 38 states in the United States. The … Seals live in the oceans of both hemispheres and, with the exception of the more tropical monk seals, are mostly confined to polar, subpolar, and temperate climates. 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