Look Alikes
provided by Invertebrates of the Salish Sea
How to Distinguish from Similar Species: This is the only crangonid with a long spiny rostrum and only 4 pairs of walking legs. In the same trawls that we catch this species in we also catch the Hippolytid shrimp Lebbeus groenlandicus, which is also reddish marked and spiny and looks superficially similar. However, L. groenlandicus' reddish markings are in distinct, uneven transverse bands on the abdomen, and it does not as readily assume the cataleptic posture seen in the photo above.
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Habitat
provided by Invertebrates of the Salish Sea
Lives among hydroids, bryozoans, and worm tubes on mixed composition bottoms.
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Distribution
provided by Invertebrates of the Salish Sea
Geographical Range: Port Etches, Alaska to La Jolla, CA
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Habitat
provided by Invertebrates of the Salish Sea
Depth Range: 7-201 m
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Comprehensive Description
provided by Invertebrates of the Salish Sea
Like all crangonids, pereopod 3 is subchelate. Unlike most crangonids, this species has only 4 pairs of legs and a long, toothed rostrum. Length to about 7 cm.
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Comprehensive Description
provided by Invertebrates of the Salish Sea
Biology/Natural History: Unlike most crangonids, this species does not bury in the sediment. Feeds on smaller crustaceans and worms that are ambushed and swallowed whole. The slender third pereopods are held just above the bottom and function as antennas to detect prey, which are seized and attacked with the subchelate first pereopods. Prey items include gammarid amphipods, shrimp, and polychaetes. Small prey are consumed whole. Large prey are first repeatedly speared with the sharp spine on the first pereiopod, then eaten headfirst. In development, Paracrangon has fewer zoeal stages than do many other decapods. Many members of family Crangonidae burrow into the sand but this species does not. All members of genus Paracrangon lack the second pereiopods. Since the second pereiopod is often used for grooming, it is not surprising to find parts of this species fouled with hydroids, diatoms, etc. This may help camouflage them.
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Paracrangon echinata
(
Dutch; Flemish
)
provided by wikipedia NL
Paracrangon echinata is een garnalensoort uit de familie van de Crangonidae.[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1852 door Dana.
Bronnen, noten en/of referenties Geplaatst op:
22-03-2013
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