part of part of fin bone parhypural 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 parhypural phy hemal spine of preural centrum 1 parahypural ZFA:0000438 prohypural parhyural UBERON:2000438 The parhypural is frequently confused with the arch plus spine of preural centrum 1. parhypural hypaxonal Haemal spine of last hemal arch that is pierced by the haemal canal through which the caudal vessels pass or haemal arch of preural centrum 1. Its distal part commonly supports lepidotrichia. The parhypural is an unpaired median haemal spine. UBERON:2000562 preural 1 vertebra hemal spine caudal fin