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Click on image to enlarge. © Copyright Ross Robertson, 2006 · 12 Raja cortezensis 2 thumbnails  •  slide show español Overview Main identification features disc: front borders straight thorns: 1row on tail disc center: dark/pale spots pectoral: +/- ocellus Rhomboidal disc of flattened, pointed head, body and pectoral fins; front edges of disc straight; pelvic fins with 2 distinct lobes, rear one large; large spiracles behind eyes; snout rigid; spines on rear borders only of ventral side; 2 small dorsal fins at rear of tail, no tail fin; spines on disc small, thin, not grooved, with oval bases; 34-37 rows of teeth in upper jaw; small thorns around eye and spiracle; no thorns on shoulders; short row large thorns on midback behind eye; 1 row of small thorns on tail before dorsal fin, 1-3 thorns between dorsal fins. Upper surface brown; center of disc with scattered small dark spots or eye-sized mid-brown blotches; sometimes with 1-2 small ocelli on pectoral, at rear and opposite nape; lower surface pale. Size: 36 cm. Habitat: soft bottom. Depth: 15-90 m. Lower 2/3 of Baja and the lower 2/3 of the Gulf of California to Panama. Attributes Abundance: Common. Cites: Not listed. Climate Zone: Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos); Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); North Temperate (Californian Province &/or Northern Gulf of California). Depth Range Max: 90 m. Depth Range Min: 15 m. Diet: bony fishes; mobile benthic crustacea (shrimps/crabs); mobile benthic worms; mobile benthic gastropods/bivalves; octopus/squid/cuttlefish. Eastern Pacific Range: Northern limit=31; Southern limit=-6; Western limit=-117; Eastern limit=-78; Latitudinal range=37; Longitudinal range=39. Egg Type: Benthic; No pelagic larva; No pelagic phase. Feeding Group: Carnivore. FishBase Habitat: Demersal. Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species. Habitat: Mud; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only; Sand & gravel. Inshore Offshore: Inshore; Inshore Only. IUCN Red List: Not evaluated / Listed. Length Max: 36 cm. Regional Endemism: Continent only; Continent; TEP endemic; Continental TEP endemic; 3 provinces (Cortez + Mexican + Panamic) endemic; All species. Residency: Resident. Salinity: Marine; Marine Only. Water Column Position: Bottom; Bottom only; Names Scientific source: Integrated Taxonomic Information System Links to other sites Fishbase Catalog of Fishes Integrated Taxonomic Information System References Compagno, L.J.V., 1999., Checklist of living elasmobranchs. In Hamlett W.C. (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes., The John Hopkins University Press:471-498. Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo .  Derechos reservados de los autores y Conservación Internacional. Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen II. Vertebrados - Parte 1., FAO2:647-1200. McEachran , J. D. and Miyake, T., 1988., A new species of skate from the Gulf of California (Chondrichthyes, Rajoidei)., Copeia, 1988:877-886. McEachran , J.D.and Dunn, K.A., 1998., Phylogenetic analysis of skates, a morphologically conservative clade of Elasmobranchs (Chondrichthyes: Rajidae)., Copeia, 1998:271-290. Acknowledgements Ross Robertson, Smithsonian Tropical Research Institute I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page. Supported by National Biological Information Infrastructure National Science Foundation go to Discover Life's Facebook group Following modified from FishBase    Top | See original http://www.fishbase.org/Summary/speciesSummary.php?genusname=Raja&speciesname=cortezensis ---> http://fishbase.de/Summary/speciesSummary.php?genusname=Raja&speciesname=cortezensis http://fishbase.de/Summary/speciesSummary.php?genusname=Raja&speciesname=cortezensis ---> https://fishbase.de/Summary/speciesSummary.php?genusname=Raja&speciesname=cortezensis https://fishbase.de/Summary/speciesSummary.php?genusname=Raja&speciesname=cortezensis ---> http://fishbase.de/summary/Raja-cortezensis.html http://fishbase.de/summary/Raja-cortezensis.html ---> https://fishbase.de/summary/Raja-cortezensis.html You can sponsor this page Common name (e.g. trout) contains begins with begins with ends with is Genus + Species (e.g. Gadus morhua) About this page More Info Plus d'info Mais info Languages Arabic Bahasa/Malay Bangla Chinese(Si) Chinese(Tr) Deutsch English Español Farsi Français Greek Hindi Italiano Japanese Lao Nederlands Português(Br) Português(Pt) Russian Swedish Thai Vietnamese User feedbacks Comments &   Corrections Fish Forum Guest Book Facebook Citation Uploads Attach website Upload photo Upload video Upload   references Fish Watcher Related species Species in    Caliraja Species in    Rajidae - Classification - Rajidae Rajiformes Elasmobranchii Chordata Animalia Caliraja cortezensis ( McEachran & Miyake , 1988 ) Cortez skate Upload your photos  and  videos Pictures | Videos | Google image Caliraja cortezensis Picture by Robertson, R. Classification / Names Common names | Synonyms | Catalog of Fishes( genus , species ) | ITIS | CoL | WoRMS | Cloffa Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates) Etymology: Caliraja: The prefix name Cali- refers to the state of California, United States and Gulf of California, Baja California, Mexico, the regions where the types of all four recognized species were described. . Environment: milieu / climate zone / depth range / distribution range Ecology Marine; demersal; depth range 15 - 90 m (Ref. 114953 ), usually ? - 80 m (Ref. 9261 ). Subtropical; 28°N - 25°N, 113°W - 108°W (Ref. 114953 ) Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri Eastern Central Pacific: endemic to Gulf of California (Mexico) Size / Weight / Age Maturity: L m   ?   range ? - ? cm Max length : 39.0 cm TL male/unsexed; (Ref. 114953 ) Biology     Glossary (e.g. epibenthic) Benthic on the inner part of the continental shelf (Ref. 9261 ). Oviparous (Ref. 50449 ). Eggs have horn-like projections on the shell (Ref. 205 ). Males reaches maturity at ca. 34 cm TL (Ref. 114953 ) Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449 ). Main reference Upload your references | References | Coordinator : McEachran, John | Collaborators McEachran, J.D. and K.A. Dunn , 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314 ) IUCN Red List Status (Ref. 130435 )   Least Concern (LC)  ; Date assessed: 05 February 2019 CITES Not Evaluated CMS (Ref. 116361 ) Not Evaluated Threat to humans   Harmless Human uses Fisheries: of no interest FAO - Publication: search | FishSource | More information Countries FAO areas Ecosystems Occurrences Introductions Stocks Ecology Diet Food items Food consumption Ration Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Spawning aggregation Fecundity Eggs Egg development Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment Abundance BRUVS References Aquaculture Aquaculture profile Strains Genetics Electrophoreses Heritability Diseases Processing Nutrients Mass conversion Collaborators Pictures Stamps, Coins Misc. Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision Tools E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY | Special reports Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets Download XML Summary page | Point data | Common names | Photos Internet sources AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes : genus , species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome , nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go , Search | World Records Freshwater Fishing | Zoological Record Estimates based on models Phylogenetic diversity index (Ref. 82804 ):  PD 50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). Trophic level (Ref. 69278 ):  3.7   ±0.6 se; based on size and trophs of closest relatives Resilience (Ref. 120179 ):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100). Fishing Vulnerability (Ref. 59153 ):  Low to moderate vulnerability (29 of 100). Comments & Corrections Back to Search Random Species Back to Top Accessed through: Not available FishBase mirror site : localhost Page last modified by : mrius-barile - 20 July 2016 Fatal error : Uncaught ArgumentCountError: Too few arguments to function checkEcotox(), 1 passed in /var/www/html/summary/SpeciesSummary.php on line 2304 and exactly 3 expected in /var/www/html/includes/speciessummary.lib.php:2580 Stack trace: #0 /var/www/html/summary/SpeciesSummary.php(2304): checkEcotox() #1 {main} thrown in /var/www/html/includes/speciessummary.lib.php on line 2580 Updated: 2024-04-23 10:18:43 gmt FishBase | Search | All Living Things | Top © Designed by The Polistes Corporation