ectopterygoid — a paired, deep, dermal bone forming part of the roof of the mouth, articulating anteriorly with the palatine, posteriorly with the quadrate and mesially with the endoptetygoid if the latter is present. In Amia it has one or two rows of teeth.… … Dictionary of ichthyology
mesopterygoid — metapterygoid (the deep, paired, endochondral bone forming the posterior end of the palatoquadrate and connected with the hyomandibula. Absent in many modern Teleostei. Also called endopterygoid and entopterygoid) … Dictionary of ichthyology
os ectopterygoideum — (plural ossa ectopterygoidea)) ectopterygoid (a paired, deep, dermal bone forming part of the roof of the mouth, articulating anteriorly with the palatine, posteriorly with the quadrate and mesially with the endoptetygoid if the latter is present … Dictionary of ichthyology
os mesopterygoideum — (plural ossa mesopterygoidea)) mesopterygoid (endopterygoid (a deep, paired bone on the roof of the mouth lying behind the pterygoid)) … Dictionary of ichthyology
os metapterygoideum — (plural ossa metaperygoidea)) metapterygoid (the deep, paired, endochondral bone forming the posterior end of the palatoquadrate and connected with the hyomandibular. Absent in many modern Teleostei, it bears teeth in the Albulidae. Also called… … Dictionary of ichthyology
os pterygoideum — (plural ossa pterygoidea)) pterygoid (a paired dermal bone between the autopalatine and the endopterygoid in the roof of the mouth (of the palatoquadrate). See also ectopterygoid) … Dictionary of ichthyology
pterygoid — a paired dermal bone between the autopalatine and the endopterygoid in the roof of the mouth (of the palatoquadrate). See also ectopterygoid … Dictionary of ichthyology
atheriniform — ▪ fish Introduction any member of the order Atheriniformes, containing 15 families of marine and freshwater spiny finned fishes (spiny finned fish), including the flying fishes (flying fish) (see ), needlefishes (needlefish), silversides,… … Universalium