. Bulletin - United States National Museum. Science. Fig. 216.—Genus Crisidia Milne Edwards, 1838 A-F. Crisidia cornuta Linnaeus 1758 (Ellis 1755). A. Articulated branches showing the gemmation and the method of ramification, X15. B. Portion of ovicelled colony, X48. (A, B. After Milne Edwards, 1838.) C. An ovicell viewed from the front. (After Harmcr, 1S91.) D. An ovicell seen in profile. E. Portion of nonovicelled colony, X26. F. Colony, natural size. (D-F. After Hincks, 1880.) more than 20 zoids, divided without joints in a varying number of partial segments that surround the gonozoid; this
. Bulletin - United States National Museum. Science. Fig. 216.—Genus Crisidia Milne Edwards, 1838 A-F. Crisidia cornuta Linnaeus 1758 (Ellis 1755). A. Articulated branches showing the gemmation and the method of ramification, X15. B. Portion of ovicelled colony, X48. (A, B. After Milne Edwards, 1838.) C. An ovicell viewed from the front. (After Harmcr, 1S91.) D. An ovicell seen in profile. E. Portion of nonovicelled colony, X26. F. Colony, natural size. (D-F. After Hincks, 1880.) more than 20 zoids, divided without joints in a varying number of partial segments that surround the gonozoid; this together with the surrounding partial segments is more or less twisted round its axis; the membranous sac of the gonozoid is not constricted off into two parts; 8 tentacles. (Borg, 1924.) Genotype.—Crisiella (Crisia) producta Smitt, 1866. Recent. Genus CRISIA Lamouroux, 1812 The sterile segments, except in the basal part of the colonies, consist of 3 to many zoids; the fertile segments are composed of 5 to 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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