. The Bashford Dean memorial volume :. Fishes; Sharks; Fishes, Fossil. Text-figure 46. Pelvic fin skeleton of a male Chlamydoselachus: A, viewed obliquely from above; B, viewed from the inner (ventral) side. Be, medial radial belonging to the myxopterygium; Bm, abdom- inal musculature; mt, metapterygium; Mx, principal radial of the myxopterygium; P, pelvis; R, radials; T, pocket of the myxopterygium; TO, opening of the pocket. After Braus, 1902, Abb. 7 and Text-figure 45. Skeleton of the pelvic fin and girdle of Heptanchus maculatus: A, female; B, male. Be, beta cartilage; —2, first and
. The Bashford Dean memorial volume :. Fishes; Sharks; Fishes, Fossil. Text-figure 46. Pelvic fin skeleton of a male Chlamydoselachus: A, viewed obliquely from above; B, viewed from the inner (ventral) side. Be, medial radial belonging to the myxopterygium; Bm, abdom- inal musculature; mt, metapterygium; Mx, principal radial of the myxopterygium; P, pelvis; R, radials; T, pocket of the myxopterygium; TO, opening of the pocket. After Braus, 1902, Abb. 7 and Text-figure 45. Skeleton of the pelvic fin and girdle of Heptanchus maculatus: A, female; B, male. Be, beta cartilage; —2, first and second connecting segments ha., basal or axial cartilage; , basipterygium; pi., pelvis; ra., radials. After Daniel, 1934, Fig. 55. Chlamydoselachus or Heptanchus, and this fusion is confined to the anterior end of the fin skeleton where some plates of cartilage may be regarded as rudimentary basals. In Deinega's drawing (1909 and 1923) of the pelvic fin of Chlamydoselachus, it is difBcult to determine the number of segments in the radials—the row of small distal segments is either not well shown or is absent. Pelvic Fins and Pelvis of the Male.— In the male Chlamydoselachus, the skeleton of the pelvic fins, together with the pelvis, has been fully described and figured by Braus (1902) and by Goodey (). Their figures are reproduced as my Text-figure 46 and my Figure 21, plate V. By comparison with Text-figures 42, 43, and 89 (p. 434) it will. 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 Dean, Bashford, 1867-1928; Gudger, E. W. (Eugene Willis), 1866-1956. New York : [American Museum of Natural History],
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