? Bobtail squids
Hawaiian Bobtail Squid
Scientific classification
Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Sepiolida Fioroni, 1981
Families
Idiosepiidae Sepiolidae

Bobtail squid are a group of cephalopods closely related to cuttlefish. Bobtail squid tend to have a rounder mantle than cuttlefish and have no cuttlebone. They have eight suckered arms and two tentacles and generally quite small. They live in shallow coastal waters of the Pacific and a small part of the Indian oceans. Like cuttlefish they can swim by either using the fins on their mantle or by jet propulsion. They are also known as Dumpling squid (owing to their rounded mantle) or Stubby squid. Euprymna scolopes: the Hawaiian Bobtail Squid This image is not licensed under the GFDL. It is under a non-commercial-use only licence. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anemones) Placozoa (trichoplax) Subregnum Bilateria (bilateral symmetry) Acoelomorpha (basal) Orthonectida (parasitic to flatworms, echinoderms, etc. ... Classes Caudofoveata Aplacophora Polyplacophora - Chitons Monoplacophora Bivalvia - Bivalves Scaphopoda - Tusk shells Gastropoda - Snails and Slugs Cephalopoda - Squids, Octopuses, etc. ... Orders Sepiida Sepiolida Spirulida Teuthida Octopoda Vampyromorphida Nautilida The Cephalopods (head-foot) are the mollusk class Cephalopoda characterized by bilateral body symmetry, a prominent head, and a modification of the mollusk foot, a muscular hydrostat, into the form of arms or tentacles. ... 1981 (MCMLXXXI) was a common year starting on Thursday of the Gregorian calendar. ... ... Species 8 - see text Classification Order Sepiolida: bobtail squid Family Idiosepiidae Idiosepius biserialis Idiosepius macrocheir Idiosepius minimus Southern Pygmy Squid, Idiosepius notoides Northern Pygmy Squid, Idiosepius paradoxus Idiosepius picteti Two-toned Pygmy Squid, Idiosepius pygmaeus Idiosepius thailandicus Family Sepiolidae Categories: Animal stubs | Bobtail squid ... Genera 14, see text Classification Order Sepiolida: bobtail squid Family Idiosepiidae Family Sepiolidae Subfamily Heteroteuthinae Genus Heteroteuthis Odd Bobtail, Heteroteuthis (Heteroteuthis) dispar Heteroteuthis (Heteroteuthis) weberi Heteroteuthis (Stephanoteuthis) dagamensis Heteroteuthis (Stephanoteuthis) hawaiiensis Heteroteuthis (Stephanoteuthis) serventyi Genus Iridoteuthis Iridoteuthis iris Iridoteuthis maoria Genus Nectoteuthis Nectoteuthis pourtalesi Genus Sepiolina Japanese Bobtail, Sepiolina nipponensis... Orders Sepiida Sepiolida Spirulida Teuthida Octopoda Vampyromorphida Nautilida The Cephalopods (head-foot) are the mollusc class Cephalopoda characterized by bilateral body symmetry, a prominent head, and a modification of the mollusc foot into the form of arms or tentacles. ... Families Sepiadariidae Sepiidae Cuttlefish are animals of the order Sepiida, and are marine cephalopods, small relatives of squids and nautilus. ... Families Sepiadariidae Sepiidae Cuttlefish are animals of the order Sepiida, and are marine cephalopods, small relatives of squids and nautilus. ... For other meanings of Pacific, see Pacific (disambiguation). ...

Light Organ

Bobtail squid have a symbiotic relationship with bioluminescent bacteria which inhabit a special light organ in the squid's mantle. The bacteria are fed a sugar solution by the squid and in return hide the squid's silhouette when viewed from below by matching the amount of light hitting the top of the mantle. Common Clownfish (Amphiprion ocellaris) in their Magnificent Sea Anemone (Heteractis magnifica) home. ... Bioluminescence is the production and emission of visible light by a living organism as the result of a chemical reaction during which chemical energy is converted to light energy. ... Subgroups Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular: bacterium) are a major group of living organisms. ...

Classification

• CLASS CEPHALOPODA
  • Subclass Nautiloidea: nautilus
  • Subclass Coleoidea: squid, octopus, cuttlefish
    • Superorder Decapodiformes
      • Order Spirulida: Ram's Horn Squid
      • Order Sepiida: cuttlefish
      • Order Sepiolida: bobtail squid
        • Family Idiosepiidae
        • Family Sepiolidae
      • Order Teuthida: squid
    • Superorder Octopodiformes

Orders Sepiida Sepiolida Spirulida Teuthida Octopoda Vampyromorphida Nautilida The Cephalopods (head-foot) are the mollusk class Cephalopoda characterized by bilateral body symmetry, a prominent head, and a modification of the mollusk foot, a muscular hydrostat, into the form of arms or tentacles. ... Orders Nautilida Bactrida Nautiloids are a group of marine animals which all possess an external shell, the most well known example being the modern nautiluses. ... Orders Sepiida Sepiolida Spirulida Teuthida Octopoda Vampyromorphida Subclass Coleoidea is the grouping of cephalopods containing all the primarily soft_bodied creatures. ... Suborders Myopsina Oegopsina Squids are the large, diverse group of marine cephalopods popular as food in cuisines as widely separated as Korean and Italian. ... Families 14 in two suborders, see text. ... Families Sepiadariidae Sepiidae Cuttlefish are animals of the order Sepiida, and are marine cephalopods, small relatives of squids and nautilus. ... Orders Sepiida Sepiolida Spirulida Teuthida Decapodiformes is a superorder of Cephalopoda, which includes all species with ten limbs; the name derives from the Latin meaning ten feet. ... Binomial name Spirula spirula (Linnaeus, 1758) Rams Horn Squid (Spirula spirula) is a unique and peculiar species of mollusc which constitutes a family (Spirulidae) and order (Spirulida) by itself. ... Families Sepiadariidae Sepiidae Cuttlefish are animals of the order Sepiida, and are marine cephalopods, small relatives of squids and nautilus. ... Species 8 - see text Classification Order Sepiolida: bobtail squid Family Idiosepiidae Idiosepius biserialis Idiosepius macrocheir Idiosepius minimus Southern Pygmy Squid, Idiosepius notoides Northern Pygmy Squid, Idiosepius paradoxus Idiosepius picteti Two-toned Pygmy Squid, Idiosepius pygmaeus Idiosepius thailandicus Family Sepiolidae Categories: Animal stubs | Bobtail squid ... Genera 14, see text Classification Order Sepiolida: bobtail squid Family Idiosepiidae Family Sepiolidae Subfamily Heteroteuthinae Genus Heteroteuthis Odd Bobtail, Heteroteuthis (Heteroteuthis) dispar Heteroteuthis (Heteroteuthis) weberi Heteroteuthis (Stephanoteuthis) dagamensis Heteroteuthis (Stephanoteuthis) hawaiiensis Heteroteuthis (Stephanoteuthis) serventyi Genus Iridoteuthis Iridoteuthis iris Iridoteuthis maoria Genus Nectoteuthis Nectoteuthis pourtalesi Genus Sepiolina Japanese Bobtail, Sepiolina nipponensis... Suborders Myopsina Oegopsina Squids are the large, diverse group of marine mollusks, popular as food in cuisines as widely separated as the Japanese and the Italian. ...

External link

• CephBase: Sepiolida