Diplosoma watanabei Hirose and Oka, 2009

Hirose, Euichi & Nozawa, Yoko, 2020, Fig. 6 in Bruggmanniella sanlianensis Lin, Yang & Tokuda, 2020, sp. nov., Zoological Studies 59 (19), pp. 1-11 : 4

Diplosoma watanabei Hirose and Oka, 2009

Specimens: NMNS-8141-014 (He-mei).

Colonies were thin, irregularly shaped sheets of ≤ 1 mm thick ( Fig. 2K ). The pattern of stigmata was 6-7-6-5 ( Fig. 2L ), and the retractor muscle emerged from the bottom of the thorax. This is the first time D. watanabei has been recorded from Taiwan.

Figures

Fig. 2. Didemnum and Diplosoma species. (A, B), Didemnum molle at Shimen (A, colonies; B, tunic spicules). (C, D), Diplosoma gumavirens at Xiaoyeliu (C, colonies; D, thorax with 5-5-5-4 pattern of stigmata). (E, F), Diplosoma ooru at Gonzibi (E, colonies; D, thorax with 5-6-5-4 pattern of stigmata). (G, H), Diplosoma simile at Maobitou (G, colonies; H, thorax with 6-6-6-5 pattern of stigmata). (I, J), Diplosoma virens at Gonzibi (I, colonies; J, thorax with 6-6-6-5 pattern of stigmata). (K, L), Diplosoma watanabei at He-mei (K, colonies; L, thorax with 6-7-6-5 pattern of stigmata). White arrows in A indicate some cloacal aperture. an, anus; es, esophagus; rm, retractor muscle. Scale bars: B = 20 µm; D, F, H, J, L = 0.1 mm.