Nausithoe clausi Vanhöffen, 1892

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 : 9

Nausithoe clausi Vanhöffen, 1892

( Fig. 6 : A–D)

Nausithoe clausi Vanh ̂ffen, 1892: 3–28, pl. IV. figs 1–2.

Holotype not known, possibly not extant.

Material examined: None.

Diagnosis: medusa—hypodome with transparent umbrella.

Description: Based on original description of a single specimen. Medusa 9 mm in diameter, 5 mm of this the central disc; 2.5 mm high; smooth transparent umbrella; marginal lappets short and broad, with rounded edges; tentacles equal to bell radius; numerous gastric filaments; small round gonads; no data about statocyst.

Type locality: tropical N Pacific, E of Caroline islands (no information on depth).

Distribution: Only known from type locality.

Remarks: This species description is based on a single specimen, possibly a juvenile according to the size of the gonads. Morphology resembles N. picta and N. punctata .

Figures

FIGURE 6. Nausithoe clausi (A–D) and Nausithoe eumedusoides (E–H). A and B—Drawing from Vanĥffen 1892: aboral view (A) and oral view (B) of adult medusa. C and D—Lateral view (C) and oral view (D) of a possible adult medusa of N. clausi from Anilao, Philippines, shallow waters (photos: © Suzan Meldonian 2019). E—Polyp strobilating and releasing the eumedusoids. F—Closer view of medusoid showing the gonads (g) and planulae (pl). G—Two polyps in culture; the upper polyp is strobilating. H—Polyp with tentacles extended; notice the wide collar.