Actinologia britannica - a history of the British sea-anemones and corals (Plate XI) (6996525229) (cleanup)

Description :

Description: Plate XI: Anatomical Details. 1. Ideal demi-section of a Sagartia: a. septum, b. septal foramen, c. stomach, d. liver, e. ovarian mesentery, f. ovary, g. craspedal mesentery, h. craspedum, i. acontia2. Fragment of craspedum with mesentery (S. bellis =Cereus pedunculatus)3. Same craspedum under pressure4. Fragment of acontium (S. bellis)5. Portion of column containing cinclides (A. dianthus), k. fully open, l. slightly open, m. closed6. chambered cnida before discharge (Caryophyllia)7. chambered cnidia discharged (Tealia), n. ectothoraeum, o. strebla, p. pterygia8. chambered cnida discharging, showing ectothoraeum in process of evolving9. Tangled cnida (Corynactis)10. Spiral cnida discharging (Tealia)11., 12. Globate cnidae (S. parasitica =Calliactis parasitica), p. peribola. Date: 20 January 2022, 01:58 (UTC). Source: This file was derived from: Actinologia britannica - a history of the British sea-anemones and corals (Plate XI) (6996525229).jpg: . Author: File:Actinologia britannica - a history of the British sea-anemones and corals (Plate XI) (6996525229).jpg: Gosse, Philip Henry derivative work: Pbrks. : This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Straghtened, add border. The original can be viewed here: Actinologia britannica - a history of the British sea-anemones and corals (Plate XI) (6996525229).jpg: . Modifications made by Pbrks.