Discovery reports (1959) Discovery reports discoveryreports29inst Year: 1959 o o Fig. 3. Unihellula lindahli. Diagrams showing the arrangements of autozooids in clusters with comparatively few polyps. Where distinguishable the primary polyp is hatched, i. Type specimen E of Umbellula carpenteii KoUiker, 1880. 2. Kolliker's specimen D of the same species. 3. Type specimen of Umbellula magniflora Koiliker, 1880. 4. Two small specimens from Discovery'At. 181 (nos. i and 2 of the table, p. 264). . Discovery'Stt. 181, no. 3 (p. 265). 6. The specimen irom Discovery At. 1644 (p. 267). 7. Discovery
Discovery reports (1959) Discovery reports discoveryreports29inst Year: 1959 o o Fig. 3. Unihellula lindahli. Diagrams showing the arrangements of autozooids in clusters with comparatively few polyps. Where distinguishable the primary polyp is hatched, i. Type specimen E of Umbellula carpenteii KoUiker, 1880. 2. Kolliker's specimen D of the same species. 3. Type specimen of Umbellula magniflora Koiliker, 1880. 4. Two small specimens from Discovery'At. 181 (nos. i and 2 of the table, p. 264). . Discovery'Stt. 181, no. 3 (p. 265). 6. The specimen irom Discovery At. 1644 (p. 267). 7. Discovery St. 366, specimen no. 5 (p. 265). In other specimens this dorsal furrow has disappeared because of the growth of the rachis-tissues and can only be made out by dissection. Here we might speak of typical magniflora specimens, when only some few further autozooids have developed in the central field. The type specimen of Kolliker's (1880) magniflora (text-fig. 3, 3) evidently shows the commencement of the development of such clusters. On the other hand, we cannot look on this development of the cluster as absolutely characteristic of the species. In several cases the primary polyp and the axis retain their peripheral dorsal position, and the entire cluster in the main keeps its predominantly ventral position on the rachis, with generally
Size: 1437px × 1392px
Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage
