Isotealia antarctica Carlgren, 1899

Gusmão, Luciana C. & Rodríguez, Estefanía, 2021, Deep-Sea Anemones (Cnidaria: Anthozoa: Actiniaria) From The South Atlantic, Bulletin of the American Museum of Natural History 2021 (444), pp. 1-73 : 23

Isotealia antarctica Carlgren, 1899

Figures 9–10, table 4

MATERIAL: MNRJ 8162 (2 specimens) ; locality: Ak. Ioffe Cruise 29, Shirshov St. 2184-5, Superestação 2, series #1040, Sta. 201, Mid- Atlantic Ridge, 32°50.15′ S 14°07.0′ W, collected on 22 November 2009 by MAR-ECO #38152 (1401 m) .

MATERIAL EXAMINED: Isotealia cf. antarctica USNM 42671 (1 specimen) ; locality: R / V Alba-

tross, Sta. 2767, South Atlantic Ocean, Blanca Bay, 40°03′ S 58°55.99′ W, collected on 13 January 1888 by United States Fish Commission (95 m).

EXTERNAL ANATOMY (fig. 9): Pedal disc flat, circular, adherent, slightly broader than column, with visible mesenteries insertions as dark lines; up to 84 mm in diameter in preserved specimens (fig. 9A). Column cylindrical, smooth, divisible into scapus and scapulus (fig. 9A). Margin with 48 pseudoacrorhagi with bastrichs; small fosse (fig. 9B). Column beige in preserved specimens with deciduous cuticle covering most of scapus, including pseudoacrorhagi (fig. 9A, B). Column up to 47 mm in length and 66 mm in diameter in preserved specimens. Oral disc partly contracted in preserved specimens, narrower than column diameter, with central, large mouth and