. Bulletin - United States National Museum. Science. THE SESSILE BARNACLES. 169 The first cirrus in a specimen from Inglefield Gulf (pi. 40, figs. 4, 4ffi, Cat. No. 24911, ), has rami of 15 and 10 segments. Cirrus ii has 12 and 10 segments, the anterior longer by 3 or 4. Cirrus iii has 15 and IG segments, the anterior ramus one-quarter longer than the inner. Both rami have areas of short spinules on the anterior part of the segments, and others along the posterior borders. The latter are more developed than in specimens from any other locality examined. Cirrus iv has a few minute spinu
. Bulletin - United States National Museum. Science. THE SESSILE BARNACLES. 169 The first cirrus in a specimen from Inglefield Gulf (pi. 40, figs. 4, 4ffi, Cat. No. 24911, ), has rami of 15 and 10 segments. Cirrus ii has 12 and 10 segments, the anterior longer by 3 or 4. Cirrus iii has 15 and IG segments, the anterior ramus one-quarter longer than the inner. Both rami have areas of short spinules on the anterior part of the segments, and others along the posterior borders. The latter are more developed than in specimens from any other locality examined. Cirrus iv has a few minute spinules near the anterior margins of some segments of the outer ramus and some erect spinules near the posterior margin (fig. 50). Sixth cirrus with segments bearing five pairs of spines, and usually some minute ones at the bases of the two larger pairs. The spines. 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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