. Bulletin - United States National Museum. Science. THE SESSILE BAENACLES. 207 spines, and there are some short, slender spines near the distal sut- ures. Cirri iv-vi are similar, the segments wider than long, each with three pairs of large spines and one small pair. There is a dense tuft of small spines between the first and third pairs. The posterior distal angles of the segments have groups of three or four unequal spines, the longest as long as the segment. On cirrus iv the segments of the pedicel have narrow areas of minute, erect spinules on the distal an- terior part (fig. C)Ga). Follo


. Bulletin - United States National Museum. Science. THE SESSILE BAENACLES. 207 spines, and there are some short, slender spines near the distal sut- ures. Cirri iv-vi are similar, the segments wider than long, each with three pairs of large spines and one small pair. There is a dense tuft of small spines between the first and third pairs. The posterior distal angles of the segments have groups of three or four unequal spines, the longest as long as the segment. On cirrus iv the segments of the pedicel have narrow areas of minute, erect spinules on the distal an- terior part (fig. C)Ga). Following segments have increasingly more extensive spinulose areas anteriorly and along the distal margin (fig. GCc). Tlie inner ramus has fewer spinules. The fifth and. .,tn, ^^s^ "I"', 'AV,',".u'^' '':]'.' ,'yn;'<n'/4'i''-'. 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