Medusae of the world . Fig. 247.—Halicreas (Haliscera) alba. Fig. 248.—Halicreas (Haliscera) conica. Above figures after Vanhbffen, in Tiefsee Expedition, Valdivia. wide instead of about 4 mm. as in H. platygonon; and while future studies may show that thewidely distributed H. alba is identical with the Arctic Homoeonema platygonon, the publishedevidence now available does not appear to me to warrant such a conclusion. Halicreas conica. Haliscera conica, Vanhoffen, 1902, Wissen. Ergeb. deutsch. Tiefsee Expedition, Dampfer Valdivia, Bd. 3, Lfg. 1, p. 72, , fig. 6; taf. n, fig. 33.—Maas, 19
Medusae of the world . Fig. 247.—Halicreas (Haliscera) alba. Fig. 248.—Halicreas (Haliscera) conica. Above figures after Vanhbffen, in Tiefsee Expedition, Valdivia. wide instead of about 4 mm. as in H. platygonon; and while future studies may show that thewidely distributed H. alba is identical with the Arctic Homoeonema platygonon, the publishedevidence now available does not appear to me to warrant such a conclusion. Halicreas conica. Haliscera conica, Vanhoffen, 1902, Wissen. Ergeb. deutsch. Tiefsee Expedition, Dampfer Valdivia, Bd. 3, Lfg. 1, p. 72, , fig. 6; taf. n, fig. 33.—Maas, 1906, Fauna Arctica, Bd. 4, Lfg. 3, p. 493. Bell 18 mm. wide, flatter than a hemisphere, with an apical projection. 8 oval gonads inmiddle of the 8 broad radial-canals. 72 tentacles, of uniform size. 16 lithocysts (?), 2 in eachoctant. Velum well developed. Colorless. Indian Ocean, depth of 500 to 1,000 figured in VanhofFens report on the veiled medusae of the German Valdivia expe-dition. Genus
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcnidari, bookyear1910
