Nausithoe werneri Jarms, 1990

Nausithoe werneri Jarms, 1990 View in CoL View at ENA

( Fig. 17 View FIGURE 17 )

Nausithoe werneri Jarms, 1990: 12–17 View in CoL , figs 1–7, pls I–III.

Holotype ZMH C11530 View Materials .

Material examined: ZMH C10693 View Materials ( four specimens from Portugal, no information on depth), ZMH C10602 View Materials ( eight specimens from Morocco 1967, no information on depth), more than 27 specimens kept in culture (polyps from Morocco 1980, depth: 800–3,000 m; Mediterranean Sea 2008, depth: 200m; and Rio de Janeiro, Brazil 2002, depth: 200–227 m) .

Diagnosis: medusa—hyperdome bell, translucid, with straw hat shape; polyp—solitary with 8 cusps per whorl.

Description: Based on original description and own observations. Adult medusae 5.7–12 mm in diameter with 3.85–7.74 mm of this the central disc, with a high translucid hyperdome bell with straw hat shape; marginal lobes partially overlapping, rounded; tentacles up to 7 mm long; rhopalia with statocyst and ocelli; rounded, brown/ yellowish, gonads located above the coronal groove (dioecious). Polyp solitary; 2.56–31.43 mm in total length; aperture diameter 0.33–1.65 mm; 0.08–0.40 mm diameter just above the basal disc; 8 cusps per whorl and a maximum of 14 whorls, cusps have additional teeth on the surface; 40–50 tentacles; over 100 ephyrae per strobilation.

Type locality: Morocco coast, 415–420 m depth .

Distribution: NE Atlantic Ocean, SW Atlantic Ocean, Mediterranean and Arctic Ocean.

Remarks: Examined specimens with a thimble-shaped transparent central disc, with 4 to 8 gastric filaments, which made their identification as N. werneri possible. Gonads are round and yellowish, located under or outside the coronal grove. Maximum diameter of specimens was 7 mm and tentacles were up to 3 mm long. All specimens from Brazil were males.