Bodotriidae is a family of

crustacean Crustaceans (from Latin meaning: "those with shells" or "crusted ones") are invertebrate animals that constitute one group of arthropods that are traditionally a part of the subphylum Crustacea (), a large, diverse group of mainly aquatic arthrop ...

s belonging to the order

Cumacea Cumacea is an order (biology), order of small marine crustaceans of the superorder Peracarida, occasionally called hooded shrimp or comma shrimp. Their unique appearance and uniform body plan makes them easy to distinguish from other crustaceans. ...

. Bodotriids have a worldwide distribution in shallow and deep waters. There are over 380 described species in over 30 genera, being the most diverse cumacean family. Their external morphology differs from other cumaceans by a combination of traits that independently are not unique to the family: the

telson The telson () is the hindmost division of the body of an arthropod. Depending on the definition, the telson is either considered to be the final segment (biology), segment of the arthropod body, or an additional division that is not a true segm ...

is fused to the last abdominal segment (last pleonite), the dorsal part of the mandible has a boat shape (naviculoid), exopods exist on the third maxilliped and the first peraeopod, and there is a uropodal endopod with one or two articles.

Anatomy

In both sexes the telson is fused with the last segment of the

pleon The anatomy of a decapod consists of 20 body segments grouped into two main body parts: the cephalothorax and the pleon (abdomen). Each segment – often called a somite – may possess one pair of appendages, although in various groups these ma ...

, forming a "pleotelson". Males generally have five pairs of

pleopod The anatomy of a decapod consists of 20 body segments grouped into two main body parts: the cephalothorax and the pleon (abdomen). Each segment – often called a somite – may possess one pair of appendages, although in various groups these m ...

s, although less often there may be three, two or they may be entirely absent. In females the second antenna is substantially shorter than the first. The third

maxilliped An appendage (or outgrowth) is an external body part or natural prolongation that protrudes from an organism's body such as an arm or a leg. Protrusions from single-celled bacteria and archaea are known as cell-surface appendages or surface app ...

s always have

exopod The arthropod leg is a form of jointed appendage of arthropods, usually used for walking. Many of the terms used for arthropod leg segments (called podomeres) are of Latin origin, and may be confused with terms for bones: ''coxa'' (meaning hip (a ...

s (outer branches), and there are

endopod The arthropod leg is a form of jointed appendage of arthropods, usually used for walking. Many of the terms used for arthropod leg segments (called podomeres) are of Latin origin, and may be confused with terms for bones: ''coxa'' (meaning hip, : ...

s (inner branches) on one or two segments of the

uropod Uropods are posterior appendages found on a wide variety of crustaceans. They typically have functions in locomotion. Definition Uropods are often defined as the appendages of the last body segment of a crustacean. An alternative definition sugge ...

Diversity

Bodotriidae is divided into three subfamilies (Bodotriinae, Mancocumatinae, and Vaunthompsoniinae), although it has been suggested that Mancocumatinae belong to the Vaunthompsoniinae: ;Bodotriinae Scott, 1901 *'' Alticuma'' Day, 1978 *'' Apocuma'' Jones, 1973 *'' Atlantocuma'' Bacescu & Muradian, 1974 *'' Austrocuma'' Day, 1978 *'' Bacescuma'' Petrescu, 1998 *'' Bodotria'' Goodsir, 1843 *'' Cyclaspis'' Sars, 1865 *'' Cyclaspoides'' Bonnier, 1896 *'' Eocuma'' Marcusen, 1894 *'' Iphinoe'' Bate, 1856 *'' Mossambicuma'' Day, 1978 *'' Pseudocyclaspis'' Edwards, 1984 *'' Stephanomma'' Sars, 1871 *'' Upselaspis'' Jones, 1955 *'' Zygosiphon'' Calman, 1907 ;Mancocumatinae Watling, 1977 *'' Mancocuma'' Zimmer, 1943 *'' Pseudoleptocuma'' Watling, 1977 *'' Speleocuma'' *'' Spilocuma'' Watling, 1977 ;Vaunthompsoniinae *'' Bathycuma'' Hansen, 1895 *'' Cumopsis'' G. O. Sars, 1865 *'' Gaussicuma'' Zimmer, 1907 *'' Gephyrocuma'' Hale, 1936 *'' Gigacuma'' Kurian, 1951 *'' Glyphocuma'' Hale, 1944 *'' Heterocuma'' Miers, 1879 *'' Hypocuma'' Jones, 1973 *'' Leptocuma'' Sars, 1873 *'' Paravaunthompsonia'' Mühlenhardt-Siegel, 2008 *'' Picrocuma'' Hale, 1936 *'' Pomacuma'' Hale, 1944 *'' Pseudosympodomma'' Kurian, 1954 *'' Scyllarocuma'' *'' Sympodomma'' Stebbing, 1912 *'' Vaunthompsonia'' Bate, 1858 *'' Zenocuma'' Hale, 1944

References

External links

* {{Taxonbar, from=Q2690783 Cumacea Malacostraca families