part of part of parhypural hypurapophysis parhypurapophyses processes This class was sourced from an external ontology (teleost_anatomy). Its definitions, naming conventions and relationships may need to be checked for compatibility with uberon hypurapophyses UBERON:2001028 ZFA:0001028 The structure, the processus parhypurale, was given the name of hypurapophysis by Nursall (1963). Additional processes may be present on the lateral walls of hypurals 1 and 2 in some teleost subgroups. They are named primary, secondary hypurapophyses, etc. parhypurapophyses Lateral process, spine-like or crest-like, at the lateral wall of the haemal arch of the parhypural that serves for insertion of the hypochordal longitudinal muscle. The process may contribute to the lateral protection of the parhypural foramen (where the caudal blood vessels exit the hemal arch) and the hypural foramen (where a caudal heart may be present). The hypurapophysis is paired. skeletal element projection