Order Decapoda

First 3 pairs of toracopods transformed to maxillipeds. First pair of pereopods usually bears chelaes. Gills are usually enclosed by carapace' folds. One pair of uropods is expanded and together with telson form caudal fin. (Jashnov, 1948)

Pasiphaeidae

Family Pasiphaeidae

Fingers on first pairs of chelae slender and long, their cutting edge pectinate.

Thoridae

Family Thoridae

First pair of chelae heavier than second.

No photo

Family Bythocarididae

Key features are not set
Pandalidae

Family Pandalidae

Pereopods without exopodites. The first two pairs of pereopods are very different from each other. First pair of pereopods lacking chela.

Crangonidae

Family Crangonidae

First pair of pereopods subchelate

Galatheidae

Family Galatheidae

Key features are not set
Paguridae

Family Paguridae

Key features are not set
No photo

Family Parapaguridae

Key features are not set
No photo

Family Diogenidae

Key features are not set
Lithodidae

Family Lithodidae

Key features are not set
No photo

Family Oregoniidae

Key features are not set
Geryonidae

Family Geryonidae

Key features are not set
No photo

Family Oplophoridae

Key features are not set
No photo

Family Homolidae

Key features are not set

Family Pasiphaeidae

Fingers on first pairs of chelae slender and long, their cutting edge pectinate.

Pasiphaea multidentataPasiphaea multidentataParapasiphae sulcatifronsParapasiphae sulcatifronsPasiphaea sivadoPasiphaea sivadoPasiphaea tardaPasiphaea tarda

Family Thoridae

First pair of chelae heavier than second.

Eualus gaimardii gaimardii Eualus gaimardii gaimardii Lebbeus polarisLebbeus polarisSpirontocaris liljeborgiiSpirontocaris liljeborgiiEualus belcheriEualus belcheriSpirontocaris phippsii Spirontocaris phippsii Eualus zarenkoviEualus zarenkoviSpirontocaris spinusSpirontocaris spinusLebbeus groenlandicusLebbeus groenlandicus

Family Bythocarididae

Key features are not set

Bythocaris payeriBythocaris payeriBythocaris ireneBythocaris ireneBythocaris biruliBythocaris biruli

Family Pandalidae

Pereopods without exopodites. The first two pairs of pereopods are very different from each other. First pair of pereopods lacking chela.

Pandalus borealisPandalus borealisAtlantopandalus propinqvusAtlantopandalus propinqvusPandalus montaguiPandalus montagui

Family Crangonidae

First pair of pereopods subchelate

Pontophilus norvegicusPontophilus norvegicusSabinea sarsiiSabinea sarsiiSclerocrangon boreasSclerocrangon boreasSabinea septemcarinataSabinea septemcarinataSclerocrangon feroxSclerocrangon ferox

Family Galatheidae

Key features are not set

Munida sarsiMunida sarsiMunida tenuimanaMunida tenuimana

Family Paguridae

Key features are not set

Pagurus bernhardusPagurus bernhardusNo photoAnapagurus hyndmanni Pagurus pubescensPagurus pubescensNo photoAnapagurus laevis Pagurus alatus Pagurus alatus No photoAnapagurus chiroacanthus Pagurus carneusPagurus carneusPagurus cuanensisPagurus cuanensisPagurus forbesii Pagurus forbesii Pagurus prideauxPagurus prideaux

Family Parapaguridae

Key features are not set

No photoParapagurus pilosimanus

Family Diogenidae

Key features are not set

No photoDiogenes pugilator

Family Lithodidae

Key features are not set

Lithodes majaLithodes majaParalithodes camtschaticus Paralithodes camtschaticus No photoNeolithodes grimaldii No photoParalomis bouvieri No photoParalomis spectabilis No photoParalithodes platypus

Family Oregoniidae

Key features are not set

Chionoecetes opilioChionoecetes opilioHyas araneusHyas araneusHyas coarctatusHyas coarctatus

Family Geryonidae

Key features are not set

Geryon trispinosusGeryon trispinosusNo photoChaceon affinis

Family Oplophoridae

Key features are not set

Family Homolidae

Key features are not set

Paromola cuvieriParomola cuvieri

Phylum:Arthropoda
Class:Malacostraca

The Decapoda is the largest natural grouping within the Malacostraca. In all decapods the thoracic segments are fused dorsally to a carapace, a fold of which extends ventrally on each side of the animal, enclosing the gills and constituting a branchial chamber. The maxilla has a large, modified endopodite, the scaphognathite, which drives water through the branchial chamber by rhythmic beating. (Hayward, Ryland, 1990)

General body plan of Decapoda

1. PhD Zakharov Denis V.

1. PhD Zakharov Denis V.

The project leader

Academic degree: PhD
Occupation: senior scientist
Workplace: Polar Research Institute of Marine Fisheries and Oceanography (PINRO)
Taxonomic group: Gastropoda
E-mail: zakharden@yandex.ru

2. Zimina Olga L.

2. Zimina Olga L.

The project leader

Occupation: scientist
Workplace: Murmansk Marine Biological Institute (MMBI)
Taxonomic group: Malacostraca, Cirripedia, Pycnogonida
E-mail: o.l.zimina@gmail.com

  1. Komai T. &De Grave S. (2015) A new species of the thorid shrimp genus Eualus Thallwitz, 1892 (Crustacea: Decapoda: Caridea) from the Bering Sea, with notes on related species // Arthropoda Selecta 24(3): 271282;
  2. http://www.marinespecies.org/index.php;
  3. Sandberg L., McLaughlin P.A. 1998. Crustacea, Decapoda, Paguridae. In: Marine Invertebrates of Scandinavia, 10: 113 p.;
  4. Sokolov V.I. 2003. [Decapod Crustaceans of the Barents Sea] // Trudy VNIRO. Vol.142. P.2576. [in Russian].;
  5. Sokolov, V. (2000) Deep-sea shrimps of the genus Bythocaris G.O. Sars in the collections of Russian museums, with the description of a new species (Crustacea: Decapoda: Hippolytidae). Zool. Med. Leiden 74 (24), 29.xii.: 403-468, figs 1-39. ISSN 0024-0672;
  6. Squires, H.J. (1990) Decapod Crustacea of the Atlantic coast of Canada. Can. Bull. Fish. Aquat. Sci. 221: 532 p. ISBN 0-660-13332-6;
  7. Vassilenko, S.V., and V.V. Petryashov (eds.) 2009. Illustrated Keys to Free-Living Invertebrates of Eurasian Arctic Seas and Adjacent Deep Waters, Vol. 1. Alaska Sea Grant, University of Alaska Fairbanks.;