Halecium? tenellum, Hincks, 1861

Watson, Jeanette E., 2012, Some hydroids (Hydrozoa: Hydroidolina) from Dampier, Western Australia: annotated list with description of two new species., Memoirs of Museum Victoria 69, pp. 355-363 : 357

Measurements of Halecium? tenellum , (µm)

Hydrocaulus, basal length 400–900

Hydrophore length below hydrotheca 80–520 width 48–60

Hydrotheca width at diaphragm 60–80 depth to diaphragm 20–22 width across margin 92–124

Remarks. Identification of Halecium to species level in closely similar species groups is difficult with infertile material. The present material is doubtfully referred to H. tenellum .

Distribution. Atlantic, Indian and Pacific Oceans, probably New Zealand. Not previously recorded from Australia.