Laodicea undulata

• Main Authors: Schuchert, Peter, Collins, Richard
• Format: Other/Unknown Material
• Language: unknown
• Published: 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Cnidaria; Hydrozoa; Leptothecata; Laodiceidae; Laodicea; Laodicea undulata; Forbes; Norway; Iceland; Northern Norway
• Online Access: https://zenodo.org/record/5710614; https://doi.org/10.5281/zenodo.5710614

Laodicea undulata (Forbes & Godsir, 1853) Fig 27 A-E Laodicea undulata. – Schuchert, 2017a: 353, fig. 2A-C, redescription, complete synonymy. Examined material: BFLA3797; 1 specimen; 13-OCT- 2018; size 6 mm; preserved in alcohol for DNA extraction; 16S sequence MW528645. – BFLA3806; 1 specimen; 19-OCT-2018; preserved in alcohol for DNA extraction; 16S sequence MW528646. – BFLA3812; 1 specimen; 20-OCT-2018; size 8 mm; preserved in alcohol for DNA extraction; 16S sequence MW528647. – BFLA3836; 1 specimen; 19-NOV-2018; size 6 mm; preserved in alcohol for DNA extraction; 16S sequence MW528648. – BFLA4126; 1 specimen; 06-JUN-2019; size 10 mm; has one branched radial canal, thus 5 radial canals in total; preserved in alcohol for DNA extraction; 16S sequence identical to MW528648. – 04-MAR- 2019; 1 specimen photographed, with one radial canal joining another radial canal instead of manubrium, not collected. Observations: Laodicea medusae with umbrella up to 10 mm wide, all individuals not fully grown; stomach quadratic, short, with four folded lips. Gonads contiguous with stomach and spreading along proximal half to 2/3 (depending on bell size and age) of widened radial canals (= basal stomach pouches or extensions), flat leaf-like, pendant, sinuous. Up to 100 tentacles; small tentacle bulbs that taper gradually into tentacle, bulb usually with an adaxial ocellus, usually one marginal cirrus between successive tentacles; usually one cordylus between successive tentacles. 16S Data: A blastn search in GenBank with the four obtained sequences gave always as best match one of the European Laodicea undulate sequences, although the similarities were rather low (92-95%). The haplotypes from Florida showed high divergence values of up to 10.6% (Table 1), while the three European haplotypes have only 0.5% bp differences. A maximum likelihood tree separated the sequenced into three distinct lineages (Fig. 28). Distribution: Eastern Atlantic and adjacent waters from Iceland and northern Norway to South Africa; western ...