Ridley sea turtle

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Ridley sea turtle

From Wikipedia, the free encyclopedia

(Redirected from Lepidochelys)

Ridley sea turtle

Researchers collect Kemp's ridley sea turtle eggs
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Cryptodira
Superfamily:	Chelonioidea
Family:	Cheloniidae
Subfamily:	Carettinae
Genus:	Lepidochelys Fitzinger, 1843
Type species
Chelonia olivacea Eschscholtz, 1829
Species
Lepidochelys kempii Lepidochelys olivacea

Ridley sea turtles are a genus (Lepidochelys) of sea turtle comprising two species: Kemp's ridley sea turtle and the olive ridley sea turtle.

Kemp's ridley sea turtles are currently on the New York and United States lists of endangered species.

Anatomy

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Adult ridley sea turtles grow to a length of 51–71 cm (20–28 in), and weight of 36–50 kg (79–110 lb). They feed on crabs, fish, cephalopods, clams, and some marine vegetation.

Etymology and taxonomic history

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The origin of "ridley" is a subject of speculation. Prior to being known as ridleys, French naturalist Bernard Germain de Lacépède referred to the Lepidochelys species as "bastard turtles." Renowned sea turtle conservationist Archie Carr claimed that "ridley" was a common Floridan term, quite possibly, a dialectal corruption of "riddle."^[1]

Conservation

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The Kemp's ridley sea turtles were on the brink of extinction in the 1960s with low numbers of 200 nesting individuals. Due to strict laws that protected their nesting sites in Mexico and altered fishing gear to avoid accidental capture of the Kemp's ridley, their numbers have increased to estimated an 7000–9000 nesting individuals today. The olive ridley sea turtle is considered to have the most abundant numbers today, estimated as 800,000 nesting individuals. The threats to their survival are loss of nesting habitat, direct harvest of the eggs and adults, and entanglement in fishing gear. Laws against harvesting the adults and eggs also have helped the olive ridley sea turtles' numbers gradually increase.

References

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^ Dundee, Harold A. (2001). "The Etymological Riddle of the Ridley Sea Turtle". Marine Turtle Newsletter. 58: 10–12. Retrieved 2008-12-30.

External links

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NY State Website - endangered species

Cheloniidae family

Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Subclass: Anapsida
Order: Testudines
Suborder: Cryptodira
Superfamily: Sea turtles
Family: Cheloniidae

Genera

Species of the Cheloniidae family

†Allopleuron

†Allopleuron hofmanni

†Argillochelys

†Argillochelys africana

Caretta

Loggerhead sea turtle

†Carolinochelys

†Carolinochelys wilsoni

Chelonia

Green sea turtle

†Eochelone

†Eochelone brabantica
†Eochelone voltregana

Eretmochelys

Hawksbill sea turtle

†Gigantatypus

†Gigantatypus salahi

†Glarichelys

†Glarichelys knorri

†Itilochelys

†Itilochelys rasstrigin

Lepidochelys

†Mexichelys

†Mexichelys coahuilaensis

†Miocaretta

†Miocaretta lankae

Natator

Flatback sea turtle

†Pacifichelys

†Pacifichelys hutchisoni
†Pacifichelys urbinai

†Syllomus

†Syllomus aegyptiacus
†Syllomus crispatus

†Tasbacka

Phylogenetic arrangement of turtles based on turtles of the world 2017 update: Annotated checklist and atlas of taxonomy, synonymy, distribution, and conservation status. †=Extinct.

Testudines

Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Diapsida
Order: Testudines

Genus

Chelonioidea
(Sea turtles)

Cheloniidae	†Allopleuron Caretta †Carolinochelys Chelonia †Eochelone Eretmochelys †Gigantatypus †Glarichelys †Itilochelys Lepidochelys †Mexichelys †Miocaretta Natator †Pacifichelys †Syllomus †Tasbacka
Dermochelyidae	†Arabemys †Corsochelys †Cosmochelys Dermochelys †Eosphargis †Mesodermochelys †Psephophorus
	†Euclastes †Peritresius †Procolpochelys †Protosphargis †Puppigerus

Kinosternoidea

Dermatemydidae	Dermatemys
Kinosternidae	Claudius †Hoplochelys Kinosternon Staurotypus Sternotherus

Testudinoidea

Emydidae	†Acherontemys Chrysemys Clemmys Deirochelys Emys Actinemys Emydoidea Glyptemys Graptemys Malaclemys Pseudemys Terrapene Trachemys †Wilburemys
Geoemydidae	Batagur †Banhxeochelys Cuora Cyclemys Geoclemys Geoemyda Hardella Heosemys Leucocephalon Malayemys Mauremys Melanochelys Morenia Notochelys Orlitia Pangshura Rhinoclemmys Sacalia Siebenrockiella Vijayachelys
Platysternidae	Platysternon
Testudinidae	Aldabrachelys Astrochelys Centrochelys Chelonoidis Chersina Cylindraspis †Cymatholcus †Floridemys Geochelone Gopherus †Hadrianus †Hesperotestudo Homopus Indotestudo Kinixys Malacochersus Manouria †Megalochelys †Oligopherus Psammobates Pyxis †Solitudo Stigmochelys †Stylemys Testudo

Trionychia

Carettochelyidae	†Allaeochelys †Anosteira Carettochelys
Trionychidae	Amyda Apalone †Axestemys Chitra Cyclanorbis Cycloderma †Drazinderetes Dogania †Gilmoremys †Hutchemys †Khunnuchelys Lissemys Nilssonia Palea †Palaeoamyda Pelochelys Pelodiscus Rafetus Trionyx
	†Basilochelys †Sinaspideretes

Chelydridae	Chelydra †Chelydrops †Chelydropsis †Emarginachelys †Macrocephalochelys Macrochelys †Planiplastron †Protochelydra
†Nanhsiungchelyidae	†Anomalochelys †Basilemys †Jiangxichelys
†Protostegidae	†Alienochelys †Archelon †Atlantochelys †Bouliachelys †Calcarichelys †Cratochelone †Desmatochelys †Iserosaurus †Notochelone †Ocepechelon †Pneumatoarthrus †Protostega †Rhinochelys †Santanachelys †Terlinguachelys
	†Adocus †Argillochelys †Bashuchelys †Ctenochelys †Prionochelys †Toxochelys

Pleurodira

†Araripemydidae	†Araripemys
†Bothremydidae	†Araiochelys †Arenila †Azabbaremys †Bothremys †Cearachelys †Chedighaii †Chupacabrachelys †Eotaphrosphys †Foxemys †Galianemys †Ilatardia †Inaechelys †Itapecuruemys †Jainemys †Kinkonychelys †Kurmademys †Labrostochelys †Nigeremys †Phosphatochelys †Polysternon †Puentemys †Rosasia †Rhothonemys †Sankuchemys †Taphrosphys †Ummulisani †Zolhafah
Chelidae	Acanthochelys Chelodina Chelus Elseya Elusor Emydura Hydromedusa †Lomalatachelys Mesoclemmys Myuchelys Phrynops Platemys †Prochelidella Pseudemydura Rheodytes Rhinemys †Yaminuechelys
Pelomedusidae	Pelomedusa Pelusios
Podocnemididae	†Albertwoodemys †Bauruemys †Brontochelys †Caninemys †Carbonemys †Cerrejonemys †Cordichelys Erymnochelys †Lapparentemys †Latentemys Peltocephalus Podocnemis †Stupendemys
†Sahonachelyidae	†Sahonachelys †Sokatra

	†Caribemys †Caririemys †Tacuarembemys

Phylogenetic arrangement of turtles based on Turtles of the World 2017 Update: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status. † = extinct.

See also List of Testudines families

Taxon identifiers

Lepidochelys

Wikidata: Q810578
Wikispecies: Lepidochelys
ADW: Lepidochelys
AFD: Lepidochelys
BOLD: 158934
CoL: 5CG2
EPPO: 1LPOCG
Fauna Europaea: 214776
Fauna Europaea (new): cb106eb3-02b0-45ad-b893-cf1de565ecc2
GBIF: 2442152
iNaturalist: 39669
IRMNG: 1015653
ITIS: 173838
NBN: NBNSYS0000188642
NCBI: 8471
NZOR: 02a8c904-99cc-4178-8059-abf84b4d2f70
Open Tree of Life: 587323
Paleobiology Database: 83306
WoRMS: 137069

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