basipterygium
(plural basipterygia))
one of the endochondral fused radials or pterygiophores at the base of a fin, particularly the pelvics. The two chondral basipterygia of the pelvic fin meet anteriorly at the pubic symphysis to form the pelvic girdle. The body of the bone is called the pubic plate and bears an acetabular facet for articulation of the fin rays or the radial bones. An anterior process is known as the pubic process, a middle as the iliac process and a posterior as the ischial process. Also called basalia or pelvic bone. It articulates with the antimere, q.v., the corresponding bone on the opposite side

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • Basipterygium — Ba*sip te*ryg i*um, n. [NL., fr. Gr. ba sis a base + ptery gion a fin.] (Anat.) A bar of cartilage at the base of the embryonic fins of some fishes. It develops into the metapterygium. {Ba*sip ter*yg i*al}, a. [1913 Webster] …   The Collaborative International Dictionary of English

  • basipterygium — noun A cartilage at the base of the fins of some fish that develops into the metapterygium upon maturity …   Wiktionary

  • basipterygium — ba·sip·ter·yg·i·um …   English syllables

  • basipterygium — …   Useful english dictionary

  • os basipterygium — (plural ossa basipterygia)) basipterygium (plural basipterygia)(one of the endochondral fused radials or pterygiophores at the base of a fin, particularly the pelvics. The two chondral basipterygia of the pelvic fin meet anteriorly at the pubic… …   Dictionary of ichthyology

  • Basipterygial — Basipterygium Ba*sip te*ryg i*um, n. [NL., fr. Gr. ba sis a base + ptery gion a fin.] (Anat.) A bar of cartilage at the base of the embryonic fins of some fishes. It develops into the metapterygium. {Ba*sip ter*yg i*al}, a. [1913 Webster] …   The Collaborative International Dictionary of English

  • CHONDRICHTHYENS — Comme leur nom l’indique (du grec 﨑礼益嗀福礼﨟, cartilage, et 晴’ 﨑羽﨟, 羽礼﨟, poisson) les Chondrichthyens sont des Poissons caractérisés d’abord par la quasi absence de tissu osseux dans leur squelette interne, entièrement formé de cartilage, parfois… …   Encyclopédie Universelle

  • Конечности — (Extremitates) обособленные наружные органы движения, свойственные позвоночным, членистоногим и высшим червям. Представляя, главным образом, органы, служащие для поддержания и передвижения тела, К. могут также быть преобразованы в органы хватания …   Энциклопедический словарь Ф.А. Брокгауза и И.А. Ефрона

  • basipterygia — plural of basipterygium …   Dictionary of ichthyology

  • ossa basipterygia — plural of os basipterygium …   Dictionary of ichthyology

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