. Bulletin - United States National Museum. Science. 142 NATIONAL IMUSEUM BULLETIN 227 Female stolon (fig. 39) with 6 prenatatory, 19-24 natatory, and 38-48 postnatatory setigers; nuchal epaulettes somewhat triangular, extending on first setiger; pigmented pattern as in stem form, trans- verse reddish brown dorsal bands every 1 to 4 segments, with dark spots on the ventral sides of the parapodia; eggs carried in 3-lobed egg sac; eggs whitish, bright blue or purplish. Male stolon (fig. 37, a, h) with 6 prenatatory, 21-29 natatory, 13-53 postnatatory setigers; body light to dark reddish bro
. Bulletin - United States National Museum. Science. 142 NATIONAL IMUSEUM BULLETIN 227 Female stolon (fig. 39) with 6 prenatatory, 19-24 natatory, and 38-48 postnatatory setigers; nuchal epaulettes somewhat triangular, extending on first setiger; pigmented pattern as in stem form, trans- verse reddish brown dorsal bands every 1 to 4 segments, with dark spots on the ventral sides of the parapodia; eggs carried in 3-lobed egg sac; eggs whitish, bright blue or purplish. Male stolon (fig. 37, a, h) with 6 prenatatory, 21-29 natatory, 13-53 postnatatory setigers; body light to dark reddish brown banded, as in stem form. Biology.—Found at low water under stones, on pilings, among algae, hydroids, bryozoa. Dredged up to 18 fathoms on gravelly bottom, in sponges, on shells, among bryozoan nodules. Stem form, with sexual buds forming, may be found at any time of year but are especially abundant in June through August (Massachusetts); sexual mAn. Figure 38.—Syllidae, Autolyius fasciatus, stem form with bud: a, dorsal view anterior end with head of sexual bud forming between setigers 13 and 14; b, dorsal view anterior end, with bases of antennae and cirri only shown; c, parapodium; d, neuroseta, simple bayonette; e, neuroseta, compound bidentate 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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