Monotheca Nutting, 1900

Watson, Jeanette E., 2011, Review of the genus Monotheca (Hydrozoa: Leptolida) from Australia with description of a new species and a note on Monothecella Stechow, 1923, Memoirs of Museum Victoria 68, pp. 71-91 : 72

Monotheca Nutting, 1900

Colony small, caulus erect, monosiphonic, simple or sparingly branched, divided into internodes without hydrothecae. Hydrocladia alternate, consisting of two internodes, the distal one bearing a hydrotheca with one median inferior nematotheca and two superior lateral nematothecae seated on a distal enlargement or a bifurcation of the internode. Gonangia fixed sporosacs, usually borne on proximal part of the stem, ovate or sac shaped, without protective appendages.