Sarsia apicula (Murbach & Shearer, 1902)

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 : 248-249

publication ID

https://doi.org/ 10.11646/zootaxa.5189.1.22

publication LSID

lsid:zoobank.org:pub:5BDD71A3-8B92-48AD-AE61-238FA855B513

DOI

https://doi.org/10.5281/zenodo.7119509

persistent identifier

https://treatment.plazi.org/id/03CB87EA-FF8F-FFEF-8AFC-FD57F8998B62

treatment provided by

Plazi

scientific name

Sarsia apicula (Murbach & Shearer, 1902)
status

 

Sarsia apicula (Murbach & Shearer, 1902) View in CoL , new record to China ( Fig. 4 View FIG )

Codonium apiculum Murbach & Shearer, 1902: 72 View in CoL ; Murbach & Shearer. 1903: 165, pl. 17 Fig. 1 View FIG , pl. 22 Figs. 4 View FIG ~5. Sarsia apicula, Hartlaub, 1907: 17 View in CoL , Fig, 9; Brinckmann-Voss, 1980: 18, Figs. 8 View FIG . 9a; Brinckmann-Voss, 1985: 673, Figs. 1–5 View FIG View FIG View FIG View FIG View FIG ; Schuchert, 2001: 818 ~821, Fig. 30 A–C; Bouillon et al., 2006: 239.

Material examined: Holotype ( FIO-HCCS03 ), one specimen from the Bohai Sea of China. Station 4-5 (39°50’30.84”N, 119°38’16.41”E), depth 12.0 m, April 2020, collected by Xiao Wang. GoogleMaps

Description. Adult medusa is 9~ 10 mm high, diameter 8~ 9 mm, bell top pointed to rounded, jelly thick. Subumbrella nearly conical. Manubrium becomes very long, reaching about two times the height of the bell in living specimens, extending beyond the orifice of the bell when completely contracted in preserved specimens, with high conical apical knob. Manubrium has long, thin serpentine part with distal swollen stomach. Gonad covers nearly entire serpentine part, thickness near top in extended manubrium tapers evenly, very short portion of manubrium (about 1/20) not covered by gonad. Radial canals enter the gastrodermal chambers at the top, passing a very short distance through mesogloea. Epidermal parts of bulbs have incomplete nematocyst rings. Bulbs have black ocelli. Tentacles are at least two times as long as bell, covered by dense nematocyst clusters, terminal cluster not thickened. Colors: manubrium, tentacles, and apical knob reddish.

Distribution: The Bohai Sea of China; Northeastern Pacific, Puget Sound, Sooke, Victoria Harbour, Friday Harbour, and San Juan Islands ( Brinckmann-Voss, 2000).

Remarks. The medusa of Sarsia apicula is characterized by pinkish tentacles, its conical subumbrella, and the tapering of the gonad towards the manubrium base. Preserved medusae are almost indistinguishable from S. tubulosa and S. princeps which are sympatric (the Bohai Sea of China).

Sarsia apicula is distinguished from the typical blue S. tubulosa by its triangular bell, the pinkish color of its tentacles and manubrium, and the very short proximal part of the manubrium (about 1/20 of manubrium). It is distinguished from S. princeps by its non-branching apical canal, its radial canals entering the mesogloea, and the high gastrodermal chambers of the tentacular bulbs.

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Anthoathecata

Family

Corynidae

Genus

Sarsia

Loc

Sarsia apicula (Murbach & Shearer, 1902)

Wang, Xiao, Chen, Xiao-Yin & Xu, Zhen-Zu 2022
2022
Loc

Codonium apiculum

Bouillon, J. & Gravili, C. & Pages, F. & Gili, J. M. & Boero, F. 2006: 239
Schuchert, P. 2001: 818
Brinckmann-Voss, A. 1985: 673
Brinckmann-Voss, A. 1980: 18
Hartlaub, C. 1907: 17
1907
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