OBO ID: ZFA:0001585
Term Name: caudal fin principal ray Search Ontology:
Synonyms: caudal principal lepidotrichium, caudal principal ray
Definition: Caudal fin lepidotrichium that is adjacent to a branched ray. Caudal principal rays may be segmented but unbranched and the main element forming the dorsal or ventral leading margin of the caudal fin or a ray that may be only segmented and branched and forms part of the middle-posterior region of the fin. A caudal principal ray is an unpaired median bone. There are 19 principal caudal rays, with 10 in the dorsal lobe and nine in the ventral lobe. The dorsal lobe rays articulate with hypurals 3-5. (1)
Appears at: Unknown
Evident until: Adult (90d-730d, breeding adult)
References: TAO:0001585
Ontology: Anatomy Ontology
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