. Bulletin - United States National Museum. Science. 228 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. â â vest Fig. 88.âFamily Bicellariellidae Levinsen, 1909 A-L. Bicellariella ciliata Linnaeus, 1758. A. Larva viewed in profile, X100. The terminal bud is inclosed in a kind of sheath. B. Aboral side of larva, X C. Oral side, ; (A-C, after Barrois, 1877); ce, obscure portion of the body cavity comprised between the two branches of the stomach; fl., flagellum; mi., aboral mesoderm; -ph., pharynx; o, mouth of larva; C. D., digestive cavity; PL, vibratile plume; Vt., terminal bud; op.,
. Bulletin - United States National Museum. Science. 228 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. â â vest Fig. 88.âFamily Bicellariellidae Levinsen, 1909 A-L. Bicellariella ciliata Linnaeus, 1758. A. Larva viewed in profile, X100. The terminal bud is inclosed in a kind of sheath. B. Aboral side of larva, X C. Oral side, ; (A-C, after Barrois, 1877); ce, obscure portion of the body cavity comprised between the two branches of the stomach; fl., flagellum; mi., aboral mesoderm; -ph., pharynx; o, mouth of larva; C. D., digestive cavity; PL, vibratile plume; Vt., terminal bud; op., large elements. D, E. Larva viewed in profile and from the oral side; a, evaginated process; b, mouth; c, flagellum; d, rosette figure; e, color spot. F, G, H, I. Different stages of an ovicell; (D-I, after Nitzche, 1876); m, border of mouth area; a, fertilized edge; b, spoon-shaped or dome-shaped cyst; c, rounded fL-sure (covering cyst); d, muscle fibers within the latter. J. Two eggs with their enveloping membrane. K. Ovicell" with the embryo. L. An erect zooecium showing some anatomical details and the tentacular sheath. (K, L. after Smitt, 1868.) M. Cornucopina grandis Busk, var. producta MacGillivray. Anatomical details showing the frontal membrane (fm) into which a single pair of parietal muscles (p. m.) arc inserted; the plate (crypt) is probably a cryptocyst. The zooecium has given rise by budding to two younger zooecia (z') and is connected with its lateral neighbors by the communication pore (c. p.). Each of the three communication pores (scptulae) is surrounded by a strong calcareous ring; occl., occlusor muscles; rm, large retractor muscle. (After llarmer, 1902.). 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. o
Size: 1528px × 1634px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
