Koellikerina maasi. A, B. Drawing from the original species description by Browne (1910) of a specimen in an early developmental stage (A) and an adult specimen (B) from McMurdo Sound, Antarctica; C. Drawing of a specimen (bell height 11 mm) from Gauss Station, Antarctica (Vanhöffen 1912); D. Drawing of a specimen from New Zealand (Schuchert 1996, Suppl. material 1), scale bar 1 mm; E, F. Specimen MCMEC2019_Koellikerina_maasi_a observed on 26/11/2019; apico-lateral (E) and oral-lateral (F) views. Pmc: perradial mesogleal convexity with ovoid yellowish nodule. E-F photos courtesy: E. Cimoli.

  Part of: Verhaegen G, Cimoli E, Lindsay D (2021) Life beneath the ice: jellyfish and ctenophores from the Ross Sea, Antarctica, with an image-based training set for machine learning. Biodiversity Data Journal 9: e69374. https://doi.org/10.3897/BDJ.9.e69374