Biology:Stygiocaris
| Stygiocaris | |
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| Stygiocaris stylifera | |
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| Genus: | Stygiocaris Holthuis, 1960 [1]
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Stygiocaris is a genus of shrimp from caves in the North West Cape and Barrow Island, Western Australia.[2]
Stygiocaris is highly troglobitic, being transparent, less than 20 mm (0.8 in) long and with reduced eyes.[2] It was first described by Lipke Holthuis in 1960.[1]
The genus contains two species – S. stylifera and S. lancifera. S. stylifera is larger than S. lancifera, and also differs in the shape of the rostrum, which is lance-shaped in S. lancifera and constricted at its basal end, but straight and without any constriction in S. stylifera.[1] Other distinguishing features include the shape of the fifth and sixth abdominal somites, and the bases of the antennae.[1]
The two species of Stygiocaris were the first cave shrimp to be reported from Australia , and the type specimens were mostly taken from Kuddumurra Well, from which the fish Milyeringa veritas was described in 1945.[1] The temperature in the well was recorded as 29–30 °C (84–86 °F), and it contained fresh water, but is influenced by the tides.[1]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 L. B. Holthuis (1960). "Two new species of atyid shrimps from subterranean waters of N. W. Australia (Decapoda Natantia)". Crustaceana 1 (1): 47–57. doi:10.1163/156854060x00069.
- ↑ 2.0 2.1 Timothy J. Page, William F. Humphreys & Jane M. Hughes (2008). "Shrimps Down Under: evolutionary relationships of subterranean crustaceans from Western Australia (Decapoda: Atyidae: Stygiocaris)". PLoS ONE 3 (2): e1618. doi:10.1371/journal.pone.0001618. PMID 18286175. Bibcode: 2008PLoSO...3.1618P.
Wikidata ☰ Q7629325 entry
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