Cryptolithodes sitchensis
| Cryptolithodes sitchensis | |
|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Anomura |
| Family: | Lithodidae |
| Genus: | Cryptolithodes |
| Species: | C. sitchensis
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| Binomial name | |
| Cryptolithodes sitchensis | |
| Synonyms[2] | |
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Cryptolithodes sitchensis, known as the umbrella crab and the turtle crab,[3][4] is a species of king crab native to coastal regions of the northeastern regions of the Pacific Ocean, ranging from Sitka, Alaska to Point Loma, California.[5] Its carapace extends over its legs such that when it pulls in its legs, it resembles a small stone. It lives in rocky areas from the low intertidal to depths of 37 m (121 ft).[5][6]
Description
[edit]Cryptolithodes sitchensis' carapace is ovate, nearly smooth, and extends over all of its three pairs of walking legs and two chelipeds.[7][4] It is generally about 5⁄3 as wide as it is long and can be over 5 cm (2.0 in) wide at the adult stage.[4] It ranges from neutral sandy colors to bright oranges, reds, and purples.[4][8] In adults, the first abdominal segment is fused with the second.[9] The third, fourth, and fifth segments are each composed of one median (inner) plate and a pair of lateral (outer) plates, although the third segment has accessory plates in two small regions on the left and right surrounded by the second segment, third median plate, and third lateral plates.[9] Males have an equal number of these plates on both sides, but females often have more accessory plates to the left of the median.[9]
Taxonomy
[edit]Cryptolithodes sitchensis was described by naturalist Johann Friedrich von Brandt in 1853 from a specimen found near Sitka, Alaska.[1] It is one of the three species of Cryptolithodes, along with C. typicus and C. expansus.[10]
References
[edit]- ^ a b von Brandt, Johann Friedrich (1853). "Ueber eine neue Art der Gattung Cryptolithodes (Cryptolithodes sitchensis)" [About a new species of the genus Cryptolithodes (Cryptolithodes sitchensis)]. Bulletin de la Classe physico-mathématique de l'Académie Impériale des Sciences de Saint Pétersbourg (in German). 11: 254–256. ISSN 1029-998X.
- ^ De Grave, Sammy (25 July 2022). "Cryptolithodes sitchensis Brandt, 1853". WoRMS. World Register of Marine Species. Retrieved 4 December 2024.
- ^ Snow, C. Dale (April 1978). "Interesting Crabs of Oregon". Oregon Wildlife. Vol. 33, no. 4. Oregon Fish and Wildlife Commission. p. 6.
- ^ a b c d Kozloff, Eugene N. (1993). Seashore Life of the Northern Pacific Coast: An Illustrated Guide to Northern California, Oregon, Washington, and British Columbia. Seattle, WA: University of Washington Press. pp. 192, 255. ISBN 0-295-96084-1. LCCN 83001130 – via the Internet Archive.
- ^ a b Jensen, Gregory C. (1995). Pacific Coast Crabs and Shrimps. Sea Challengers. ISBN 0-930118-20-0. LCCN 94039292.
- ^ Hall, Sally; Thatje, Sven (October 15, 2009). "Global bottlenecks in the distribution of marine Crustacea: temperature constraints in the family Lithodidae" (PDF). Journal of Biogeography. 36 (11): 2125–2135. doi:10.1111/j.1365-2699.2009.02153.x. Archived (PDF) from the original on July 24, 2018 – via the University of Southampton.
- ^ Poore, Gary C. B.; Ahyong, Shane T. (2023). "Anomura". Marine Decapod Crustacea: A Guide to Families and Genera of the World. CRC Press. pp. 311–317. ISBN 978-1-4863-1178-1.
- ^ Schmitt, Waldo L. (1921). The Marine Decapoda Crustacea of California. University of California Press. p. 155. Retrieved 11 December 2024 – via the Internet Archive.
- ^ a b c McLaughlin, Patsy A.; Lemaitre, Rafael (2000). "Aspects of evolution in the anomuran superfamily Paguroidea: one larval prospective" (PDF). Invertebrate Reproduction and Development. 38 (3): 159–169. doi:10.1080/07924259.2000.9652453. S2CID 55956527. Archived (PDF) from the original on February 27, 2012.
- ^ Ahyong, Shane T. (12 December 2023). "Cryptolithodes Brandt, 1848". WoRMS. World Register of Marine Species. Retrieved 11 December 2024.
External links
[edit]
Media related to Cryptolithodes sitchensis at Wikimedia Commons
Data related to Cryptolithodes sitchensis at Wikispecies- CalPhotos
- Video of C. sitchensis
