Sea Angel Clione Limacina

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=a6H6j0BpIX4

Sea Angel : Clione Limacina . • Clione Limacina known as the naked sea butterfly, sea angel, and common clione , is a sea angel • (pelagic sea slug ) found from the surface to greater than 500 m (1,600 ft) depth. • It lives in the Arctic Ocean and cold regions of the North Atlantic Ocean. It was first described by Friderich Martens in 1676 and became the first gymnosomatous (without a shell) pteropod to be described. • Family: Clionidae • Scientific name: Clione limacina • Phylum: Mollusca • Higher classification: Clione. • Sea Angel: Clione limacina (Philippine, 1774) • The most common naked pteropod of arctic waters • Size • larvae ~ 0.15 mm • Adults up to 4 cm • Color Characteristics • Barrel-shaped body with paddle-like lateral wings • No external gills • Tansparent body with orange-red colouration in the tail and horn-like mouth organs • Tentacles and hooks deployed during feeding • Reddish-brown visceral mass is seen through the body wall • Several subspecies and forms recognized, with differing shell shape and differeing polar/subpolar distribution • Habitat • Panarctic, bipolar and subpolar • Epipelagic (shallow dwelling) • Feeding • An active swimmer while hunting for its shelled pteropod prey, primarily Limacina helicina • Feeding apparatus consists of 3 pairs of buccal cones (finger-like tentacles), 2 clusters of long hooks, and a toothed radula (a chain-saw like tongue) all normally hidden inside the head and body • Feeding apparatus is everted (pushed out) during feeding to extract the prey from their shells • A well-feed animal has a large dark gut • Life cycle • protandrous hermaphrodite (males first, females later) • mating involves cross-fertilization • 30-40 eggs laid as oblong gelatinous egg strips (1 to 1.2 mm long) • Newly hatched larvae have thimble-shaped shells and a ciliated velum aroudn mouth • shell is soon cast off and while changing to adult body form, 2 ciliated rings lost are visible mid-body and near the tail • Generation times thought to be 1 year in the arctic and perhaps 2 per year in the subarctic. • • Disclaimer. • ====================== • This channel may use some copyrighted materials without specific authorization of the owner but contents used here falls under the Fair Use Copyright Disclaimer under Section 107 of the Copyright Act 1976, allowance is made for fair use for purposes such as criticism , comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. • • Contract Info. • • Facebook Link - / mr.hassy93 • • Pinterest Link - https://www.pinterest.com/mrhassy/?in...

#############################

New on site