Revised 8 Nov. 2025
PDF version (illustrated)

Ellopostoma Vaillant 1902 éllops (ἔλλοψ), a Greek word (often spelled helops) variously defined as meaning dumb, scaly, a fish (in general), and a large, rare and precious fish compared to or identified as a sturgeon; stóma (στόμα), mouth, referring to peculiar sturgeon-like mouth of E. megalomycter

Ellopostoma megalomycter (Vaillant 1902) megalo-, from mégas (μέγας), big; myktḗr (μυκτήρ), nostril, referring to its large nasal cavities, diameter ~1/3 of eye

Ellopostoma mystax Tan & Lim 2002 mýstax (μύσταξ), moustache, referring to dark margin over dorsal-anterior edge of snout