Sarsia striata Edwards, 1983

Wang, Xiao, Chen, Xiao-Yin & Xu, Zhen-Zu, 2022, Two new species and four new records of the Sarsia tubulosa group of Sarsia (Cnidaria, Corynidae) from the Bohai Sea of China, Zootaxa 5189 (1), pp. 243-254 : 250

Sarsia striata Edwards, 1983 new record to China. ( Fig. 6 )

Sarsia striata Edwards, 1983: 54 , Figs. 3 ~4; Schushert, 2001; 831, Figs. 36A~C; Bouillon et al., 2006: 239.

Material examined: Holotype ( FIO-HCCS05 ), one specimen from Bohai sea of China. Station 5-5 (39°48’32.28”N, 119°36’32.70”E), depth 3.4 m, April 2020, collected by Xiao Wang.

Description. Umbrella is bell-shaped, 7~ 8 mm high, 6~ 7 mm wide, jelly relatively thick, more so at apex, top of bell rounded, exumbrella has deep interradial and shallower perradial furrows, subumbrella has interradial pockets at top marked with angular ridges. Manubrium is very extensive, extending far beyond umbrella margin when completely contracted, while in full extension it reaches four times the length of the bell height. Manubrium is divided into long and thin serpentine part and distal swollen stomach. The gonad encircles only the serpentine part of manubrium, leaving only the stomach and the base a part of the tubular section uncovered (totaling about 1/10 of the height of bell). Manubrium often has small apical knob. Radial canals are narrow, without glandular swellings, and pass through mesogloea to enter the gastrodermal chambers of the bulbs at their abaxial side. Bulbs well formed, gastrodermal chambers large, epidermises have black ocelli. Tentacles very long and hollow, covered with spirally arranged clusters of nematocysts, ending in slightly enlarged hollow terminal clusters.

Distribution. The Bohai Sea of China; Firth of Lom, Scotland.

Remarks. This medusae closely resembles Sarsia tubulosa , with interradial exumbrella furrows, an apical knob, and a long manubrium extending far beyond umbrella margin. This species can be distinguished from Sarsia tubulosa primarily by its characteristic subumbrellar pockets with angular ridges, its thicker jelly, and the shorter gonad-free portion at the base of the manubrium.

Figures

FIG. 6 Sarsia striata Edwards, 1983 A and B. lateral view; C. bell of mature medusa seen from above.(after Schuchert, 2001).

FIG. 3 Sarsia macrogastera Xu, Chen, & Wang sp. nov. A and B. lateral view; C. tentacle bulbs in frontal view.; D. tentacle bulbs in lateral view.