axonostn.
/ˈaksəʊnɒst/ Ichthyology.
In fishes, one of the interspinal bones; the basal portion of a fin-ray.
ΘΚΠ
the world > animals > fish > parts of fish > [noun] > fin or parts of fin
finc1000
spitc1275
ray1668
pinna1688
radius1740
spine1774
interneural1854
fin-ray1863
mesopterygium1871
metapterygium1871
radiale1871
finlet1874
propterygium1876
radial1882
axonost1887
lepidotrichium1904
1887 E. D. Cope in Amer. Naturalist 21 1017 I first used the terms axial and basilar for these segments... Those who prefer a substantive appellation for these elements may call them axonosts and baseosts... The axonost is sometimes represented by more than one segment,—e.g., Dipnoi... The pelvic element so called is the axonost of this fin.
1898 A. S. Woodward Outl. Vertebr. Palæontol. 21 Median fins..rods of cartilage, each segmented into three pieces... The outer (distal) element is termed a baseost, the inner (proximal) element an axonost.
This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2018).
<
n.1887