Acanthephyridae Spence Bate, 1888

Lunina, Anastasiia, Kulagin, Dmitry & Vereshchaka, Alexander, 2024, The taxonomic status of Hymenodora (Crustacea: Oplophoroidea): morphological and molecular analyses suggest a new family and an undescribed diversity deep in the sea, Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) 200 (2), pp. 336-351 : 346

Acanthephyridae Spence Bate, 1888

Diagnosis ( Fig. 7K–O ): rostrum dentate or unarmed, second maxilla with proximal endite bearing well-developed papilla and submarginal lamina; first maxilliped with three-segmented endopod; second maxilliped with distal segment subtriangular and attached diagonally to preceding segment.

Figures

Figure 7. Morphological characters distinguishing three families of Oplophoroidea.A–E, Hymenodoridae (Hymenodora frontalis, St. 7497 d271) mandibles (A), second maxilla (B), proximal endite of second maxilla (C), first maxilliped (D) and second maxilliped (E). F–J, Oplophoridae (Systellaspis debilis, 179RT 23.1) mandibles (F), second maxilla (G), proximal endite of second maxilla (H), first maxilliped (I) and second maxilliped (J). K–O, Acanthephyridae (Acanthephyra quadrispinosa Kemp, 1939, AMK87 7277-D13) mandibles (K), second maxilla (L), proximal endite of second maxilla (M), first maxilliped (N) and second maxilliped (O). All scale bars:1 mm.