Nausithoe thieli Jarms, 1990

Molinari, Clarissa G., Collins, Allen G. & Morandini, André C., 2023, A morphological review of the jellyfish genus Nausithoe Kölliker, 1853 (Nausithoideae, Coronatae, Scyphozoa, Cnidaria), Zootaxa 5336 (1), pp. 1-32 : 26

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.

Figures

FIGURE 16. Nausithoe striata (A–B) and Nausithoe thieli (C–D). A—Holotype (ZMB CNI 14816). B—Distal whorl of internal cusps of the holotype (ZMB CNI 14816). C—Polyp with thin collar and few tentacles. D—Image of young medusa adapted from Jarms 1990.