Elementary text-book of zoology, tr Elementary text-book of zoology, tr. and ed. by Adam Sedgwick, with the assistance of F. G. Heathcote . elementarytextbo01clau Year: 1892-1893 SCXPIIISIOMA, STEOBIL4., EPHTKA. 125 anterior part of the body, giving rise to a series of segment-like divisions. The anterior part of the body bearing the tentacles is first marked off; and following this a greater or less number of sections, the new segments appearing continuously in the direction from before backward. The hindermost or basal swollen club-shaped end of the polyp's body remains undivided. The Scyph


Elementary text-book of zoology, tr Elementary text-book of zoology, tr. and ed. by Adam Sedgwick, with the assistance of F. G. Heathcote . elementarytextbo01clau Year: 1892-1893 SCXPIIISIOMA, STEOBIL4., EPHTKA. 125 anterior part of the body, giving rise to a series of segment-like divisions. The anterior part of the body bearing the tentacles is first marked off; and following this a greater or less number of sections, the new segments appearing continuously in the direction from before backward. The hindermost or basal swollen club-shaped end of the polyp's body remains undivided. The Scyphistoma h;is , Stage of Scyphistoma with sixteen ;;rm= (slightly magnified); GU-. gastric ridges. f, Commencing strobilization. now become the StrobHa, which itself passes through various developmental phases. The tentacles abort; the successive segments, separated from each other by constrictions and provided with lobe- like continuations and marginal bodies, become transformed 'into small flat discs, which become separate, and, as Ephyrce, represent the larva? of the Scyphomeduspe (fig. 113 b-h).


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