Revised 10 Dec. 2025
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Euclichthys McCulloch 1926 Eucla, referring to Great Australian Bight southwest of Eucla, Southern Australia, type locality of E. polynemus; ichthýs (ἰχθύς), fish

Euclichthys microdorsalis Last & Pogonoski 2020 micro-, from mikrós (μικρός), small; dorsalis (L.), of the back, referring to relatively small first dorsal fin compared with that of its congeners

Euclichthys polynemus McCulloch 1926 polý (πολύ), many; nemus, unnecessary masculinization of nḗma (νῆμα), thread or yarn, presumably referring to pelvic fins under head, each with four long, thread-like rays, the longest reaching the anus

Euclichthys robersti Last & Pogonoski 2020 in honor of Clive Roberts (b. 1952), Museum of New Zealand Te Papa Tongarewa, for his “considerable” contribution to ichthyology, and who, with Chris Paulin, were the first to formally report on this fish in 1997