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The size of amphipods is limited by the availability of dissolved oxygen, such that the amphipods in Lake Titicaca at an altitude of 3,800 metres (12,500 ft) can only grow up to 22 millimetres (0.87 in), compared to lengths of 90 millimetres (3.5 in) in Lake Baikal at 455 metres (1,500 ft). [12] Some amphipods exhibit sexual dimorphism.
Senticaudata was split off from the traditional suborder Gammaridea by James K. Lowry and Alan A. Myers in 2013, as a part of a process of reorganising the higher taxonomy of amphipods. It now also encompasses the previously recognized Caprellidea and Corophiidea . [ 3 ]
The Ampeliscidae are a family of amphipods, distinct enough to warrant placement in a monotypic superfamily Ampeliscoidea. [1] They are benthic, found at the bottom of seas and oceans. They are distributed worldwide, and are often abundant in areas with fine sediments. [2] They live in infaunal tubes, constructed from "amphipod silk" and ...
Phronima is a genus of small, deep sea hyperiid amphipods of the family Phronimidae. It is found throughout the world's oceans, except in polar regions. [1] Phronima species live in the pelagic zone of the deep ocean. Their bodies are semitransparent.
Talitridae is a family of amphipods. Terrestrial species are often referred to as landhoppers and beach dwellers are called sandhoppers or sand fleas. The name sand flea is misleading, though, because these talitrid amphipods are not siphonapterans (true fleas), do not bite people, and are not limited to sandy beaches. [1]
Alicella gigantea is the largest species of amphipod ever observed, with some individuals reaching up to 34 centimetres (13 in) long. [2] [3] The average length of A. gigantea ranges from 72.5 to 141.0 millimetres, and its weight ranges from 4.2 to 45 grams. [4]
Hyalella azteca has body plan similar to most amphipods and is a classic freshwater example of the order. They grow to a length of 3–8 millimetres (0.12–0.31 in), with males being larger than females. [1]
They are relatively large amphipods, with adults of the various species ranging from 0.8 to 8 cm (0.3–3.1 in) in head-and-body length. They are typically white, yellowish, orange, pinkish, red or purplish, and some have quite striking colour patterns.