Revised 13 Dec. 2025
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Gollum Compagno 1973 named for the antihero of Tolkien’s “Lord of the Rings” trilogy, to which G. attenuatus “bears some resemblance in form and habits”

Gollum attenuatus (Garrick 1954) Latin for drawn out or tapered, referring to its “attenuate, almost anguilliform as though emaciated” shape

Gollum suluensis Last & Gaudiano 2011 –ensis, Latin suffix denoting place: Sulu Sea, Philippines, type locality

Planonasus Weigmann, Stehmann & Thiel 2013 planus (L.), flat; nasus (L.), nose, referring to its soft, flat snout

Planonasus indicus Ebert, Akhilesh & Weigmann 2018 –icus (L.), belonging to: India, referring to type locality off India in northern Indian Ocean

Planonasus parini Weigmann, Stehmann & Thiel 2013 in honor of the late Nikolai Vasil’evich Parin (1932–2012), P. P. Shirov Institute of Oceanology, Russian Academy of Sciences, ichthyologist and chief scientist of the “memorable” cruise 17 of the research vessel Vityaz in 1988/89, during which holotype was collected

Pseudotriakis de Brito Capello 1868 pseudo-, from pseúdēs (ψεύδης), false, i.e., although this genus may superficially resemble Triakis (Triakidae), such an appearance is false

Pseudotriakis microdon de Brito Capello 1868 micro-, from mikrós (μικρός), small; odon, from odoús (ὀδούς), tooth, referring to numerous small teeth (>200 rows in each jaw)