Exuvia of an Antarctic krill. Many details are still there: the filtering basket, the compound eye, the gastric mill

Exuvia (plural: exuviae) is a term used in biology to describe the remains of an exoskeleton that is left after an arthropod (insect, crustacean or arachnid) has moulted. The exuvia of an animal can be important to biologists as it can often be used identify the species of the animal and even its sex. Download high resolution version (2048x1770, 283 KB)exuvia Antarctic krill image uwe kils gfdl self File links The following pages link to this file: Exuvia ... Download high resolution version (2048x1770, 283 KB)exuvia Antarctic krill image uwe kils gfdl self File links The following pages link to this file: Exuvia ... Binomial name Euphausia superba Dana, 1850 The Antarctic krill (Euphausia superba ) is a species of krill found in the Antarctic waters of the Southern Ocean. ... Compound eye of a dragonfly Compound eye of Antarctic krill as imaged by an electron microscope A compound eye is a visual organ found in certain arthropods such as insects and crustaceans. ... Gastric mill is a part of the digestive tract of crustaceans. ... This article or section does not cite any references or sources. ... An exoskeleton, in contrast to an endoskeleton, is an external anatomical feature that supports and protects an animals body. ... Subphyla and Classes Subphylum Trilobitomorpha Trilobita - trilobites (extinct) Subphylum Chelicerata Arachnida - spiders,scorpions, etc. ... Insects (Class Insecta) are a major group of arthropods and the most diverse group of animals on the Earth, with over a million described species—more than all other animal groups combined. ... Classes & Subclasses Branchiopoda Phyllopoda Sarsostraca Remipedia Cephalocarida Maxillopoda Thecostraca Tantulocarida Branchiura Pentastomida Mystacocarida Copepoda Ostracoda Myodocopa Podocopa Malacostraca Phyllocarida Hoplocarida Eumalacostraca The nauplius larva of a dendrobranchiate Porcellio scaber, the common rough woodlouse, a terrestrial crustacean Pollicipes polymerus, the gooseneck barnacle Glyphea pseudastacus, a fossil glypheoid The crustaceans (Crustacea) are... Extant orders Acarina Amblypygi Araneae Opiliones Palpigradi Pseudoscorpionida Ricinulei Schizomida Solifugae Uropygi Wikispecies has information related to: Arachnida Arachnids are a class (Arachnida) of joint-legged invertebrate animals in the subphylum Chelicerata. ... Ecdysis is the molting of the cuticula in arthropods and related groups (Ecdysozoa). ... A biologist is a scientist devoted to and producing results in biology through the study of organisms. ... In biology, a species is one of the basic units of biodiversity. ... This article or section does not cite its references or sources. ...

As it is not always practical to study insects, crustaceans or arachnids directly and because exuviae can be collected fairly easily, exuviae can play an important part in helping to determine some general aspects of a species overall life cycle such as distribution, sex ratio, production and proof of breeding in a habitat. A life cycle is a period involving one generation of an organism through means of reproduction, whether through asexual reproduction or sexual reproduction. ... Habitat (which is Latin for it inhabits) is the place where a particular species live and grow. ...

Exuvia of a horseshoe crab. Ventral view with all the legs visible Exuvia of a horseshoe crab. Dorsal view Dragonfly out of its exuvia

Exuvia of a tarantula. You can see into the openings where the legs once were Potamon fluviatile out of its exuvia

Image File history File links exuvia limulus image uwe kils gfdl self File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links exuvia limulus image uwe kils gfdl self File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Binomial name Limulus polyphemus Linnaeus, 1758 The horseshoe crab, horsefoot, or sauce-pan (Limulus polyphemus, syn. ... Image File history File links exuvia limulus image ventral uwe kils gfdl self File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links exuvia limulus image ventral uwe kils gfdl self File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Binomial name Limulus polyphemus Linnaeus, 1758 The horseshoe crab, horsefoot, or sauce-pan (Limulus polyphemus, syn. ... Image File history File links Download high resolution version (1280x851, 583 KB) Young Dragonfly ready for first flight just after coming out of its exuvia, the skin of its larva. ... Image File history File links Download high resolution version (1280x851, 583 KB) Young Dragonfly ready for first flight just after coming out of its exuvia, the skin of its larva. ... Families Aeshnidae Austropetaliidae Cordulegastridae Corduliidae Gomphidae Libellulidae Macromiidae Neopetaliidae Petaluridae A dragonfly is any insect belonging to the order Odonata, the suborder Epiprocta or, in the strict sense, the infraorder Anisoptera. ... Image File history File links Download high resolution version (600x800, 91 KB)exuvia tarantula image ventral uwe kils gfdl self File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links Download high resolution version (600x800, 91 KB)exuvia tarantula image ventral uwe kils gfdl self File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Diversity 113 genera, 897 species Genera Subfamily Acanthopelminae    Acanthopelma Subfamily Aviculariinae    Avicularia    Ephobopus    Pachistopelma    Tapinauchenius Subfamily Eumenophorinae    Anoploscelus    Batesiella    Citharischius    Encyocrates    Eumenophorus    Hysterocrates    Loxomphalia    Loxoptygus    Monocentropus    Myostola    Phoneyusa    Polyspina Subfamily Harpactirinae    Ceratogyrus    Coelogenium    Eucratoscelus    Harpactira    Pterinochilus Subfamily Ischnocolinae    Chaetopelma    Cratorrhagus    Heterothele    Ischnocolus    Nesiergus    Plesiophrictus/Neoplesiophrictus Subfamily Ornithoctoninae    Citharognathus    Cyriopagopus    Haplopelma... Image File history File links Size of this preview: 429 × 600 pixelsFull resolution (475 × 664 pixel, file size: 100 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links Size of this preview: 429 × 600 pixelsFull resolution (475 × 664 pixel, file size: 100 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...

External links

• Benthos.org
• Brerc.org.uk
• Exuviae of a scorpion (Centruroides gracilis)