Sarsia viridis Brinckmann-Voss, 1980

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 : 251

Sarsia viridis Brinckmann-Voss, 1980 new record to China ( Fig.7 )

Sarsia viridis Brinckmann-Voss, 1980: 29 , Fig. 13; Schushert, 2001: 833, Figs. 37A–B; Bouillon et al., 2006: 239.

Material examined: Holotype ( FIO-HCCS07 ), one specimen from the Bohai Sea of China. Station 2-2 (39°55’37.98”N, 119°42’55.02”E), depth 3.4 m, April 2020, collected by Xiao Wang.

Description. Adult medusa is 4~ 5 mm height, maximal diameter slightly less than height, dome-like, jelly fairly thick, especially at top of bell, diminishing in thickness towards margin, umbrella transparent. Manubrium is about twice as long as bell, with conical and short apical chamber, and is divided into long and thin serpentine part and a distal swollen stomach. Gonad is on the serpentine part of manubrium only, leaving the proximal portion free of gonad cover (<1/2 of manubrium). Radial canals enter gastrodermal chambers of bulbs at the top, passing briefly through mesogloea. Gastrodermal chambers of bulbs have concave or straight abaxial walls. Epidermal parts of bulbs relatively shallow with black ocelli. Radial canals are rather thick and clearly visible, thicker than ring canal. Tentacles have nematocyst clusters over most of their length, terminal clusters only slightly larger. Colors: apical chamber, base of manubrium, and marginal bulbs brilliant green, manubrium and tentacles paler green, umbrella slightly green.

Distribution. The Bohai Sea of China; British Columbia and Puget Sound.

Remarks. Sarsia viridis owes its name to the intense green color of the apical chamber, base of the manubrium, and marginal bulbs. Its long gonad-free proximal part of the manubrium resembles those of Sarsia bella , S. densa , and S. bohaiensis sp. nov. The characteristic green colors and the gonad-free proximal portion of the manubrium being shorter than subumbrella height may be considered its distinguishing features (see Table 2).

Figures

FIG. 7 Sarsia viridis Brinckmann-Voss, 1980 Aand B. Lateral view; C.tentacle bulbs in frontal view; D.tentacle bulbs in lateral view; (C. and D. after Brinckmann- Voss, 1980)