. Outlines of zoology. Zoology. AlcvOnaria, Octocoralla, : Dead Men's Fingers All colonial, exxept a small family includ- ing Monoxenia and Haunea. Tentacles eight, feathered, uniform. Mesenteries eight, complete. Retractor muscles always on one (ventral) side of each mesentery. One (ventral) gullet groove or siphono- glyphe, or none. Occasional dimorphism among members of a colony. There are usually calcareous spicules (of ectodermic origin) in the mesoglo^a. , Alcyoniuni (Dead men's fingers), with diffuse spicules of lime. Tubipora (Organ pipe coral), with spicules fused into tu
. Outlines of zoology. Zoology. AlcvOnaria, Octocoralla, : Dead Men's Fingers All colonial, exxept a small family includ- ing Monoxenia and Haunea. Tentacles eight, feathered, uniform. Mesenteries eight, complete. Retractor muscles always on one (ventral) side of each mesentery. One (ventral) gullet groove or siphono- glyphe, or none. Occasional dimorphism among members of a colony. There are usually calcareous spicules (of ectodermic origin) in the mesoglo^a. , Alcyoniuni (Dead men's fingers), with diffuse spicules of lime. Tubipora (Organ pipe coral), with spicules fused into tubes and trans- verse platforms. CorallhiiJi riibrum (Red coral), with an axis of fused spicules. Isis-^ with an axis of alternately Hmy and " horny" jolnts. Pen?iatula (Sea pen), a free phosphor- escent colony, with a "horny" axis possibly endodermic. Heliopora^ blue Z .A Fig. 48.—Z, Diagraiiiniatic section of Zoantharian ; Alcyonarian. (After Chun.) The line S—S in Z is through the siphonoglyphes {a). retractor are represented by dark thickening. teries—all on one (the ventral) side in Alcyonaria. A, of The on the mesen- C(?rrt/il/iZ't?'«^.—We have already noticed that there are "corals"among the Hydrozoa, viz., the Millepores. Leaving these out of account, we have to recognise that both divisions of Anthozoa inchide many Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Thomson, J. Arthur (John Arthur), 1861-1933; Newbigin, Marion I. (Marion Isabel), 1869-1934; Smith, Preserved, 1880-1941. fmo. New York, D. Appleton & Co.
Size: 1515px × 1650px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
