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Gynodiastylidae
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Superorder: Peracarida
Order: Cumacea
Family: Gynodiastylidae
Stebbing, 1912[1]
Genera

Allodiastylis
Axiogynodiastylis
Dayus
Dicoides
Eogynodiastylis
Gynodiastylis
Haliana
Litogynodiastylis
Paradicoides
Pseudozimmeriana
Sheardia
Zimmeriana

Gynodiastylidae is one the eight most commonly recognised families of crustaceans of the order cumacea. Arthropods are Animals belonging to the Phylum Arthropoda (from Greek ἄρθρον arthron, " Joint " Structure of crustaceans As Arthropods crustaceans have a stiff Exoskeleton, which must be shed to allow the animal to grow ( Ecdysis or molting The Malacostraca (Greek "soft shell" are the largest class of Crustaceans and include most of the animals that non-experts recognize as crustaceans including The superorder Peracarida is a large group of Crustaceans having members in marine freshwater and terrestrial habitats Cumacea is an order of small marine Crustaceans occasionally called hooded shrimps. Thomas Roscoe Rede Stebbing ( February 6, 1835, London &ndash July 8, 1926, Tunbridge Wells) was a British Structure of crustaceans As Arthropods crustaceans have a stiff Exoskeleton, which must be shed to allow the animal to grow ( Ecdysis or molting Cumacea is an order of small marine Crustaceans occasionally called hooded shrimps. They are especially prevalent in the Southern hemisphere, with some types described from Japan, Thailand and The Persian Gulf. For a topic outline on this subject see List of basic Japan topics. The Kingdom of Thailand (ˈtaɪlænd ราชอาณาจักรไทย, râːtɕʰa-ʔaːnaːtɕɑ̀k-tʰɑj The Persian Gulf, in the Southwest Asian region is an extension of the Most are found at less than 100 meters depth. [2]

Anatomy

Gynodiastylidae have a small free telson, usually lacking terminal setae, though in some cases there may be two. The telson is the last division of the body of a Crustacean. It is not considered a true segment because it does not arise in the embryo from teloblast areas Seta (plural setae) is a biological term derived from the Latin word for " Bristle " The interior branch (endopod) of the uropods is present on segments one through three. The decapod Crustacean such as a crab lobster shrimp or prawn is made up of nineteen Body segments grouped into two main body parts the Cephalothorax The number of free thoracic somites is never reduced. The first pereopods have a group of long rigid fibres (setae) on the propodus. The decapod Crustacean such as a crab lobster shrimp or prawn is made up of nineteen Body segments grouped into two main body parts the Cephalothorax Seta (plural setae) is a biological term derived from the Latin word for " Bristle " Males have no pleopods. The decapod Crustacean such as a crab lobster shrimp or prawn is made up of nineteen Body segments grouped into two main body parts the Cephalothorax The flagellum of the second antenna does not reach further than the hindmost edge of the carapace. A flagellum ( plural flagella) is a tail-like structure that projects from the Cell body of certain Prokaryotic and Eukaryotic cells and it Antennae (singular antenna) are paired Appendages connected to the front-most segments of Arthropods In Crustaceans they are A carapace is a dorsal section of an Exoskeleton or shell in a number of animal groups Females have a very small second antenna (much smaller than the first). They also have no exopods (outer branches) on their third maxillipeds. The decapod Crustacean such as a crab lobster shrimp or prawn is made up of nineteen Body segments grouped into two main body parts the Cephalothorax Because they lack exceptions to the two most important diagnostic characteristics (the lack of pleopods in males and of exopods on maxilliped 3 in females), Gynodiastylidae have a pre-eminent place among monographic descriptions.

References

  1. ^ Stebbing, T. R. R. , (1912). The Sympoda, Part 6. Annals of the South African Museum 10: 129–176.
  2. ^ Day, J, (1980). South African Cumacea, Part 4: Families Gynodiastylidae and Diastylidae. Annals of the South African Museum 82 (6): 187–292.

External links

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