Biology:Guinotia dentata
| Guinotia dentata | |
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| Species: | G. dentata
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| Guinotia dentata (Latreille, 1825)
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Guinotia dentata, commonly known as cyrique,[3] is a West Indian species of freshwater crab in the family Pseudothelphusidae.[4] They have few predators.[5] They are easily caught[3] and thus are used locally as a food source.[6]
Description
Guinotia dentata is almost oval in shape and the teeth on its carapace are very small. It is a yellow-brown colour and its shell can grow to 65 millimetres (2.6 in) long; it is about 3/5 long as wide.[3][6] The eyestalks are yellow whilst the corneas are black,[3] but they are probably best identifiable by their large yellow claws with straight sharply pointed fingers.[7]
The species sometimes has almost an entire dorsal surface of carapace yellow with submarginal brown.[8]
Its shell has a cervical meandering curve which does not quite touch the edge of the shell. About 24 cubicles are well defined. The forehead is low, excavated and depressed and of uniform height.[9] Its pereiopods are fairly average and its chelae are without prominent, swollen protuberance on outer surface near the base of the fingers.[8]
Distribution and habitat
The species is native mostly to Dominica, Guadeloupe, Martinique and Saint Lucia.[10] Its distribution is fragmented because of its presence on multiple islands, but it is plentiful in the regions it inhabits.[10]
Guinotia dentata lives mostly in streams (particularly shady ones)[5] and ponds and may sometimes be seen on land, though it avoids areas that are excessively dry.[4] It has not yet been observed in estuaries.[5] It lives in streams and rives in the highlands of the Lesser Antilles, not including the Virgin Islands.[10][11] They are known to hide under roots of trees, rocks and rotten wood where they dig shallow burrows which are oval in shape.[6][12] They have been spotted at altitudes of 2,850 ft (870 m).[3] They certainly inhabit the Boeri Lake and may inhabit Freshwater Lake.[13]
The largest threat to the species is habitat destruction, and a protected area has been established on Dominica to conserve them.[10]
Reproduction
Reproduction takes place entirely in fresh water, and breeding takes place all year round; there does not seem to be a breeding season.[5] The young undergo direct development, hatching as juveniles, without passing through any larval stages. The females carry the eggs and protect the young[6] who stay with their mother for a period after hatching.[5]
Diet
Guinotia dentata is a mainly carnivorous (though partially herbivorous)[6] animal which sometimes also acts as a scavenger or detritivore.[5] It has been observed to eat minnows, prawns, and aquatic algae-like vegetation.[14]
Taxonomic history
Guinotia dentata was first described in 1825 by Pierre André Latreille.[2] The specific epithet dentata means "toothed" in Latin.[5] In 1965, Gerhard Pretzmann erected the genus Guinotia (a tribute to Danièle Guinot) and made Latreille's species the type species.[15]
References
- ↑ Cumberlidge, N. (2008). "Guinotia dentata". IUCN Red List of Threatened Species 2008: e.T134595A3983694. doi:10.2305/IUCN.UK.2008.RLTS.T134595A3983694.en. https://www.iucnredlist.org/species/134595/3983694. Retrieved 20 November 2021.
- ↑ 2.0 2.1 Peter Davie (2009). "Guinotia dentata (Latreille, 1825)". WoRMS. World Register of Marine Species. http://www.marinespecies.org/aphia.php?p=taxdetails&id=443615.
- ↑ 3.0 3.1 3.2 3.3 3.4 Kristy Venable (2004). "Photographic Guide to the Freshwater and Terrestrial Crabs of Dominica" (PDF). Texas A&M University. p. 16. http://dominica.tamu.edu/student%20projects/Dominica%20Projects%20pdf%20copy/Venable_Kristy.pdf.
- ↑ 4.0 4.1 Richard G. Hartnoll (1988). "Biology of the land crabs: an introduction". in Warren W. Burggren. Evolution, systematics, and geographical distribution. Cambridge University Press. pp. 6–54. ISBN 978-0-521-30690-4. https://books.google.com/books?id=RR09AAAAIAAJ&pg=PA39.
- ↑ 5.0 5.1 5.2 5.3 5.4 5.5 5.6 Anne Prouzet; Pierre Noël (2009). "Guinotia dentata (Latreille, 1825)" (in French). DORIS. http://doris.ffessm.fr/fiche2.asp?fiche_numero=1197.
- ↑ 6.0 6.1 6.2 6.3 6.4 Hans Hillewaert. "Guinotia dentata". BioLib. https://www.biolib.cz/en/taxon/id815091/.
- ↑ Miculka (2009), p. 5.
- ↑ 8.0 8.1 Chace & Hobbs (1969), pp. 156–160.
- ↑ Gilberto Rodriguez (1982) (in French) (PDF). Les crabes d'eau douce d'Amérique. Famille des Pseudothelphusidae. Faune tropicale. XXII. Paris: ORSTOM. pp. 188–192. ISBN 978-2-7099-0513-8. http://decapoda.nhm.org/pdfs/11760/11760-001.pdf.
- ↑ 10.0 10.1 10.2 10.3 N. Cumberlidge (2008). "Guinotia dentata". IUCN Red List of Threatened Species 2008: e.T134595A3983694. doi:10.2305/IUCN.UK.2008.RLTS.T134595A3983694.en. https://www.iucnredlist.org/species/134595/3983694.
- ↑ Chace & Hobbs (1969), p. 19.
- ↑ Miculka (2009), p. 7.
- ↑ Chace & Hobbs (1969), p. 42.
- ↑ Miculka (2009), p. 13.
- ↑ Gerhard Pretzmann (1965). "Vorläufiger Bericht über die Familie Pseudothelphusidae" (in German) (PDF). Sitzungsberichte der Mathematisch-Naturwissenschaftlichen Klasse der Österreichischen Akademie der Wissenschaften, Wien 1: 1–11. http://decapoda.nhm.org/pdfs/27647/27647.pdf.
- Bibliography
- Brian Miculka (2009). "Burrowing habits, habitat selections, and behaviors of four common Dominican land crabs; Guinotia dentata, Gecarcinus lateralis, Gecarcinus ruricola, and Cardisoma guanhumi" (PDF). Texas A&M University. pp. 16. http://dominica.tamu.edu/student%20projects/Dominica%20Projects%20pdf%20copy/Miculka_Bryan.pdf.
- Fenner A. Chace Jr.; Horton H. Hobbs (1969). "The freshwater and terrestrial decapod crustaceans of the West Indies with special reference to Dominica" (PDF). Bulletin of the United States National Museum 292: 1–258. doi:10.5479/si.03629236.292.1. http://decapoda.nhm.org/pdfs/11003/11003-001.pdf.
Wikidata ☰ Q3120636 entry
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