Persa incolorata McCrady, 1859

Buecher, Emmanuelle, Goy, Jacqueline, J, Mark & Gibbons, 2005, Hydromedusae of the Agulhas Current, African Invertebrates 46, pp. 27-69 : 36

Persa incolorata McCrady, 1859

Persa incolorata: McCrady 1859: 206 , pl. 12, fig. 3; Kramp 1961: 260; 1968: 119, fig. 323.

Description: Single specimen in poor condition. Bell-shaped umbrella with slight apical projection, taller than broad; 1.4 mm in height. Exumbrella surface smooth. Mesoglea thin. Velum broad. Peripheral canal and eight radial canals present; no centripetal canals between radial canals. With more than 20 tentacles, each arising from umbrella margin, long, of equal length, hollow, each bearing a small terminal knob. Mouth with four, prominent lips; on slender, gastric peduncle of variable length, but always shorter than umbrella depth. Eight statocysts present. Two sausage-shaped gonads, each hanging from subumbrella, approx. mid-way along opposite radial canals.

Material examined: H5000.

Comments: This is the only species in this genus.

Distribution: World-wide in tropical and warm temperate waters. This represents the first record from the west Indian Ocean. Eurybathic.