. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. J' / ' ^ c -Ml ^ Fig. 41.—Thujaria/abricii (Levinsen). A and B, portions of colony; C, gonosome. There was no gonosome present in the material obtained. The drawing and description were made from a specimen of Prof. Nutting's, obtained at Orca, Alaska, during the Harriman Alaska expedition. Family Trophosome.—Hydrothecae sessile, usually adnate by one side, arranged on the upper side of the hydrocladia; nematophores always present. Gonosome.—Oonophores producing sporosacs, w
. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. J' / ' ^ c -Ml ^ Fig. 41.—Thujaria/abricii (Levinsen). A and B, portions of colony; C, gonosome. There was no gonosome present in the material obtained. The drawing and description were made from a specimen of Prof. Nutting's, obtained at Orca, Alaska, during the Harriman Alaska expedition. Family Trophosome.—Hydrothecae sessile, usually adnate by one side, arranged on the upper side of the hydrocladia; nematophores always present. Gonosome.—Oonophores producing sporosacs, which are often protected by corbulae. Key to the Genera of Found in the Beaufort Region. A. Statoplean forms, i. e., those with fixed nematophores which are usuall)' monothalamic. a. Gonosome protected by corbulcC, each of which is a modified Aglaophenia. b. Gonosome provided with protective branchlets, each of which is a modified hydrocladium B. Eleutheroplean forms, i. e., those with moveable nematophores which are usually bithalamic. a. Gonangia not especially protected. I. Hydrocladia pinnately arranged. 1. Each hydrocladium than one hydrotheca Plumiilaria. 2. Each hydrocladium bears a single hydrotheca Monoiheca, II. Hydrocladia all springing from upper side of branches Monostmchas. b. Gonangia protected by a forking of the hydrocladia 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 Fish Commission. Washington, The Commission, Govt. Print. Off
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