. Bulletin - United States National Museum. Science. Fig. 75.—Acanthograptus walkeri (Spbncer). Copy of Spencer's figure. 76 Jfi^ 77. Figs. 7G, 77.—Acan- thogeaptus wal- KERI (Spencer). Two FRAGMENTARY SPECIMENS. are somewhat clustered, and diverge thence radiatingly. On one specimen, which I hardly feel al)le to separate, the branching is rather more from a main axis. The branches, especially the main ones, are thickly beset (spinose- shaggy) with the long, blunt, obliquely upward-directed denticles, which are about 25 in the space of 25 mm. They differ much in appearance in different par
. Bulletin - United States National Museum. Science. Fig. 75.—Acanthograptus walkeri (Spbncer). Copy of Spencer's figure. 76 Jfi^ 77. Figs. 7G, 77.—Acan- thogeaptus wal- KERI (Spencer). Two FRAGMENTARY SPECIMENS. are somewhat clustered, and diverge thence radiatingly. On one specimen, which I hardly feel al)le to separate, the branching is rather more from a main axis. The branches, especially the main ones, are thickly beset (spinose- shaggy) with the long, blunt, obliquely upward-directed denticles, which are about 25 in the space of 25 mm. They differ much in appearance in different parts of the polj'pary, if, Indeed, there are not more than one kind of them. Sometimes on the main stem they are blunter (about mm. long and mm. wide at base), while on the branches and branchlets they are less blunt. But on the main stem and principal branches longer, narrower, and less rigid and regular and more hairy root-like processes 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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