. Bulletin - United States National Museum. Science. a b r —Brooksia rostrata, aggregated zooro: A, ventral view; B, view from left side; C, DORSAL VIEW. X 40 DIAMETERS. FROM APSTEIN (1894, b). diate muscle and body muscles I and II are united, or at least in con- tact, dorsally, as in Cyclosalpa virgula. Muscle III joins muscle II much as it would in C. virgula if the muscles were crowded toward the mid-dorsal point, as is the case in at least the young zooids of Brooksia rostrata. Body muscle IV is similarly drawn forward, as contrasted with the condition in Cyclosalpa virgula. From m


. Bulletin - United States National Museum. Science. a b r —Brooksia rostrata, aggregated zooro: A, ventral view; B, view from left side; C, DORSAL VIEW. X 40 DIAMETERS. FROM APSTEIN (1894, b). diate muscle and body muscles I and II are united, or at least in con- tact, dorsally, as in Cyclosalpa virgula. Muscle III joins muscle II much as it would in C. virgula if the muscles were crowded toward the mid-dorsal point, as is the case in at least the young zooids of Brooksia rostrata. Body muscle IV is similarly drawn forward, as contrasted with the condition in Cyclosalpa virgula. From muscle IV, on the right side, there is a branch (IV, b) running to near the base of the gut. On the left side of Brooksia rostrata there are three recognizable body muscles, as is the case on both sides of the aggregated Cyclosalpa floridana, in which species, as we have suggested, body muscles I and II may be fused. The body muscles of the aggregated Brooksia rostrata are thus seen to be of the Cyclosalpa type. Apstein figures the eye, but not in sufficient detail to avail for com- parisons. If he shows accurately the disposition of the pigment, the eye of the aggregated form of this species is different from that of any other known species.*. 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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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience