Review of the genus Monotheca (Hydrozoa: Leptolida) from Australia with description of a new species and a note on 
Monothecella Stechow, 1923 
79 
Figure 3. A-H, Monotheca hyalina. A, part of robust stem from cool temperate waters with intranodal septa; B, part of slender stem from 
temperate waters with no intranodal septa; C, hydrocladium and hydrotheca, lateral view; D, hydrocladium and hydrotheca, ventral view; E, 
gonotheca with female gonophore; F, apical stolonal plate; G, axillar hydrostatic pore; H, median inferior nematotheca; I, one of twin lateral 
nematothecae. Scale bar: A, B, 1 mm; C, D, 0.2 mm; E, 0.5 mm; G-I, 0.1 mm. 
