Author: Collette & Parin, 1970
FBname: Annobon keel tail needlefish
Remark: Considered mostly as a subspecies in the literature.  Therefore the upraise at species rank here is considered as a provisionally accepted name, until more works are conducted on <i>P. argalus</i> susbepcies to fix their status.
Comments: Maximum length refers to body length.  Inhabits surface waters (Ref. 2683). Circumglobal in tropical seas and divisible into five subspecies (Ref 90102).