On the occurrence of the deep-sea barnacle Tetrachaelasma southwardi Newman & Ross, 1971 (Cirripedia, Balanomorpha, Bathylasmatidae) in the Mar del Plata Submarine Canyon, Argentina: supplementary description and taxonomic remarks on the genus


	Tetrachaelasma southwardi Newman & Ross, 1971. Specimen (MACN-In 44478f): A, B. Rostrum in external and internal views, respectively; C. Carina in lateral view. Specimen (MACN-In 44478l): D, E. Rostrum in external and internal views, respectively; F. Carina in lateral view. Abbreviations: aw – alar welting; rs – rostral sheath. Scale bars: 10 mm.

Part of: Chiesa IL, Pereira E, Roccatagliata D (2024) On the occurrence of the deep-sea barnacle Tetrachaelasma southwardi Newman & Ross, 1971 (Cirripedia, Balanomorpha, Bathylasmatidae) in the Mar del Plata Submarine Canyon, Argentina: supplementary description and taxonomic remarks on the genus. Zoosystematics and Evolution 100(2): 603-623. https://doi.org/10.3897/zse.100.118912