Haleciidae Hincks, 1869

Castro Mendonça, Luana M., Parisotto Guimarães, Carmen R. & Haddad, Maria A., 2022, Taxonomy and diversity of hydroids (Cnidaria: Hydrozoa) of Sergipe, Northeast Brazil, Zoologia (e 21032) 39, pp. 1-65 : 30

Haleciidae Hincks, 1869 Haleciidae sp. 1 Fig. 15A–B

Description: A single colony with few polyps, 977 µm high. Primary hydrothecae arising directly from the hydrorhiza, 204–303 µm high, 100–109 µm wide at the margin, perisarc thin, wavy at the hydrothecal base. Few secondary hydrothecae short, arising just above the primary ones. One hydrotheca with a tubular hydranth. Gonotheca arising from a short pedicel in the lateral of a primary hydrotheca, pear-shaped, 581 µm high, 365 µm wide, with a lateral aperture with desmocytes at the margin.

Material examined: PCS – one colony with few polyps and one female gonotheca from the dry season.

Station: PCS – 2.

Bottom: mud.

Remarks: Unknown substrate.

Figures

Figure 15. (A-B) Haleciidae sp. 1: (A) detail of a polyp with a gonotheca; (B) detail of a polyp with an expanded hydranth; (C-E) Haleciidae sp. 2: (C) detail of a stem showing a hydranth; (D) detail of a stem ramification; (E) detail of the distal region of a stem; (F-H) Halecium pusillum: (F) general view of a stem; (G) detail of a stem with two male gonothecae; (H) detail of a stem with a female gonotheca.