. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 450 LEONARD P. SAYLKS of \vhirh 4 had parapodia. In addition there was a pair of clusters of notopodial setae far forward on what appeared to be a part of the peristomium. The proximal part of ihr bud was very irregular. The last of this group (Fig. 21 i had a well-formed peristomium fol- lowed by 4 setigerous segments. Posterior to these there was an asetigerous region. Between the latter and the old part, on the left side only, there was an irregular structure bearing 3 notopodia. As a result the bud as a whole was tipped
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 450 LEONARD P. SAYLKS of \vhirh 4 had parapodia. In addition there was a pair of clusters of notopodial setae far forward on what appeared to be a part of the peristomium. The proximal part of ihr bud was very irregular. The last of this group (Fig. 21 i had a well-formed peristomium fol- lowed by 4 setigerous segments. Posterior to these there was an asetigerous region. Between the latter and the old part, on the left side only, there was an irregular structure bearing 3 notopodia. As a result the bud as a whole was tipped to the Four regenerates at the tenth segment. Drawn with aid of camera lucida. FIG. 18. Three-segment hud of good shape. Twenty-eight days. X 10. FIG. 19. Left view of a hud at 27 days. X 12. FIG. 20. Right ventro-lateral view of a somewhat irregular bud. I", ventral bloodvessel. Twenty-three days. X U>. FIG. 21. Dorsal view of regenerate with region bearing 3 notopodia inter- calated on left at base of bud. Twenty-eight days. X 16. At the eleventh segment, of 113 pieces cut, 30 (about 26 per cent) survived for 10 days. Of these, 11 showed no external evidence of new tissue. Four had short, unsegmented buds with but small head- foUK One had a double structure consisting of a heteromorphic tail from the ventral side of which another, smaller tail had grown out. ne had a short heteromorphic tail terminating in an anal collar which was open ventrally and possessed 5 or 0 anal cirri. The other 13 had irregular buds of various types. Two of these were killed and 14 other- died during the next 10 days. One of those killed (Fig. 22). 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
