. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 408 I. II. IKXNIXCS AND RAY GIBSON Structure uj flic <//// and proboscis The alimentary canal in both species is ciliated throughout its length and divisible' morphologically into three distinct regions, the mouth and buccal cavity, the foregut, and the intestine (Fig. 1). The mouth is ventral and subterminal, 2-4 mm from the anterior end, and elliptical with its long axis running transversely to the main body axis. The deeply lobed lips and some slight folding of the buccal epithelium anteriorly allow the mouth to be dis
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 408 I. II. IKXNIXCS AND RAY GIBSON Structure uj flic <//// and proboscis The alimentary canal in both species is ciliated throughout its length and divisible' morphologically into three distinct regions, the mouth and buccal cavity, the foregut, and the intestine (Fig. 1). The mouth is ventral and subterminal, 2-4 mm from the anterior end, and elliptical with its long axis running transversely to the main body axis. The deeply lobed lips and some slight folding of the buccal epithelium anteriorly allow the mouth to be distended during ingestion to a diameter equal to, or even slightly in excess of, the diameter of the •..X^ .. --, . ^'W-^o"^ " ' " : [a] • r. • 4, Id I FIGURE 2(a). bincitlata. Schematic vertical longitudinal section through a portion of the ^proboscis and rhynchocoel as seen in the retracted position, (h) Cephalothrix bioculata. Schematic vertical longitudinal section through a part of the proboscis in the everted condition, b., barb; , connective tissue; , granular cell; , immature barbs; , interstitial cell; , proboscis endothelium; , proboscis lumen; , proboscis muscular layers; r., rhynchocoel; , rhynchocoel endothelium; , rhynchocoel muscular layers; , vacuolate cell. (c). Proboscis barb from hioculata. (d). Proboscis barb (\~fihalnthrl.\- 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 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
Size: 2359px × 1059px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
