Medusae of the world . Fig. 237.—Isonema amplum, after Maas, in Voyage Belgica. Side view above. Oral view below.Fig. 238.—Homa-onema rnacrogaster, after Vanhoffen, in Val- divia Tiefsee Expedition. distal halves, above the ring-canal. Stomach large, 8-sided above, 4-sided below the middle. With 4 lips. When contracted the stomach is one-third to one-half as long as the depth of the bell-cavity. A single specimen found by Plankton Expedition north of the Bermudas in about N. lat. 380 from a depth of 400 fathoms. Later it was found in the Mediterranean by Lobianco. (See text-figure 235.) Homoeo

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Medusae of the world . Fig. 237.—Isonema amplum, after Maas, in Voyage Belgica. Side view above. Oral view below.Fig. 238.—Homa-onema rnacrogaster, after Vanhoffen, in Val- divia Tiefsee Expedition. distal halves, above the ring-canal. Stomach large, 8-sided above, 4-sided below the middle. With 4 lips. When contracted the stomach is one-third to one-half as long as the depth of the bell-cavity. A single specimen found by Plankton Expedition north of the Bermudas in about N. lat. 380 from a depth of 400 fathoms. Later it was found in the Mediterranean by Lobianco. (See text-figure 235.) Homoeonema amplum Vanhoffen. Homxonema amplum, Vanhoffen, 1902, Wissen. Ergeb. deutsch. Tiefsee Expedition, Dampfer Valdivia, Bd. 3, Lfg. I, p. 65, taf. 10, fig. 21; taf. 11, fign. 24, 26, 27.Isonema amplum, Maas, 1906, Expedition Antarctique, S. Y. Belgica, Medusen, p. 5, taf. I, fign. I, 2, 7; taf. 2, fign. 8, 12; taf.3, fign. 14, 20. Bell 15 mm. wide, somewhat flatter than a hemisphere. Gelatinous substance quite thin