Axiidea

Axiidea
Axius serratus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
(unranked): Reptantia
Infraorder: Axiidea
de Saint Laurent, 1979[1]
Families

Axiidea is an infraorder of decapod crustaceans. They are colloquially known as mud shrimp, ghost shrimp, or burrowing shrimp;[2] however, these decapods are only distantly related to true shrimp. Axiidea and Gebiidea are divergent infraorders of the former infraorder Thalassinidea. These infraorders have converged ecologically and morphologically as burrowing forms.[2] Based on molecular evidence as of 2009, it is now widely believed that these two infraorders represent two distinct lineages separate from one another. Since this is a recent change, much of the literature and research surrounding these infraorders still refers to the Axiidea and Gebiidea in combination as "thalassinidean" for the sake of clarity and reference.[2] This division based on molecular evidence is consistent with the groupings proposed by Robert Gurney in 1938 based on larval developmental stages.[3]

Axiidea are noted for the burrows with complex architecture that they make in the ocean floor sediment.[4] These burrows can be classified based on their external characteristics in the sediment as well as the trophic group that the species falls into.[5] The population density of most species of Axiidea tends to be high, so these organisms play an important role in the biogeochemical processes of the ocean floor sediments, and in the creation of habitats that favor various marine benthic communities.[5]

  1. ^ de Saint Laurent, M. (1979). Vers une nouvelle classification des Crustacés Décapodes Reptantia. Bulletin de l'Office Nationale de Pêche de Tunisie, 3, 15–31.
  2. ^ a b c Dworschak, Peter C. (2012). Treatise on Zoology - Anatomy, Taxonomy, Biology. The Crustacea, Volume 9 Part B. BRILL. pp. 109–100. ISBN 9789047430179.
  3. ^ Pohle, G. and Santana, W., Gebiidea and Axiidea (=Thalassinidea), in Atlas of Crustacean Larvae, Baltimore: Johns Hopkins Univ. Press, 2014, pp. 263–271.
  4. ^ Golubinskaya, D.D., Korn, O.M. & Kornienko, E.S. "The seasonal dynamics and distribution of burrowing shrimp larvae of the infraorders Gebiidea and Axiidea in Amursky and Ussuriysky Bays, the Sea of Japan" Russ J Mar Biol (2016) 42: 232. doi:10.1134/S1063074016030044
  5. ^ a b Kornienko, E.S. "Burrowing shrimp of the infraorders Gebiidea and Axiidea (Crustacea: Decapoda)" Russ J Mar Biol (2013) 39: 1. doi:10.1134/S1063074013010033