Nausithoe thieli Jarms, 1990

(Fig. 16: C–D)

Nausithoe thieli Jarms, 1990: 17–21, figs 8–11, pl. IV.

Holotype ZMH C11532.

Material examined: None.

Diagnosis: ephyra—transparent with 4 small buds of gastric filaments; polyp—solitary with 2, 4 and 8 cusps per whorl.

Description: Based on original description. Polyp solitary; 19.58 mm in total length; 2, 4 and 8 cusps per whorl (number increases from base to aperture of tube) and maximum of 7 whorls; smooth cusps; 0.5 mm in diameter at basal disc; 0.08 mm in diameter above the basal disc; 30–40 tentacles; 20 ephyrae per strobilation. Newly released ephyra transparent; 2 mm diameter; 0.7 mm of this the central disc; rhopalia with statocyst and ocelli; 4 small buds of gastric filaments. Adult medusa unknown.

Type locality: Central Red Sea (763m depth) .

Distribution: Only known from type locality.

Remarks: Cultivation of ephyrae into mature medusae not yet successful.