Medusae of the world . form differs from Phortis pyramidalis L. Agassiz, of the West Indies, in that the peduncleis smaller and the stomach larger than in the Atlantic form. Phortis elliceana Agassiz and elliceana, Agassiz, A., and Mayer, 1902, Mem. Zool. at Harvard College, vol. 26, p. 146, plate 2, figs. 5-7. Bell much flatter than a hemisphere, about 16 mm. in diameter. The gelatinous substanceis thick at the aboral pole, but becomes thinner toward the bell-margin, which is 56 hollow tentacle-bulbs. 4 of these are large and situated at the
Medusae of the world . form differs from Phortis pyramidalis L. Agassiz, of the West Indies, in that the peduncleis smaller and the stomach larger than in the Atlantic form. Phortis elliceana Agassiz and elliceana, Agassiz, A., and Mayer, 1902, Mem. Zool. at Harvard College, vol. 26, p. 146, plate 2, figs. 5-7. Bell much flatter than a hemisphere, about 16 mm. in diameter. The gelatinous substanceis thick at the aboral pole, but becomes thinner toward the bell-margin, which is 56 hollow tentacle-bulbs. 4 of these are large and situated at the bases of the 4 radial- 310 MEDUSAE OF THE WORLD. canals; 12 others are of medium size, 3 of these being found in each quadrant. There arealso about 40 very small rudimentary tentacle-bulbs upon the bell-margin. There are neitherlateral nor marginal cirri. About 56 lithocysts alternate in position with the tentacle-bulbs,each containing 2 or 3 spherical concretions. Velum well developed. There are 4 simple, 171.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcnidari, bookyear1910
