Bathykorus bouilloni Raskoff, 2010, sp. nov. ...

• Main Author: Raskoff, Kevin A.
• Format: Text
• Language: unknown
• Published: Zenodo 2010
• Subjects: Biodiversity; Taxonomy; Animalia; Cnidaria; Hydrozoa; Narcomedusae; Aeginidae; Bathykorus; Bathykorus bouilloni; Arctic; Arctic Ocean
• Online Access: https://dx.doi.org/10.5281/zenodo.6196508; https://zenodo.org/doi/10.5281/zenodo.6196508

Bathykorus bouilloni sp. nov. Bell. The medusae shows primarily tetramerous symmetry with the umbrella being dome-shaped and the apex having a pronounced thickening of the mesoglea; with a maximum observed diameter of 1.5cm and height of 1.1cm (Figure 1). The mesoglea becomes thinner at the margins and has a uniform light blue coloration in life which turns milky-white when preserved. The bell is incised or lobed below the origin of the primary tentacles forming the peronia (Figure 1 D). There is a thin velum on the inside edge of the umbrellar margin. Tentacles. There are four primary, solid, noncontractile tentacles which originate above the umbrellar margin and peronia (one specimen of 25 collected was found with five tentacles) that are two to three times as long as the medusa is wide. These primary tentacles have deep endodermal tentacular roots that anchor into the mesoglea through the exumbrellar surface (Figure 1 E). On the margin of the bell there is one secondary tentacle per quadrant hanging free ... : Published as part of Raskoff, Kevin A., 2010, Bathykorus bouilloni: a new genus and species of deep-sea jellyfish from the Arctic Ocean (Hydrozoa, Narcomedusae, Aeginidae), pp. 57-67 in Zootaxa 2361 on pages 62-63, DOI: 10.5281/zenodo.193628 ...