Archive image from page 53 of The Danish Ingolf-Expedition (1899). The Danish Ingolf-Expedition danishingolfexpe0202ingo Year: 1899 46 ON THE APPENDICES GENITALES (CLASPERS) IN THE SELACHIANS. as, however, no figure is given of the part in question, seen from other sides, I cannot regard this absence as quite certain. The Jong appendix-stem is prolonged to a style reaching to the end of the terminal part. The marginal cartilages (not understood by G tint her to be particular pieces) appear to have mainly the same structure as in the Spinacidac; the ventral one has the usual overlapping plate
Archive image from page 53 of The Danish Ingolf-Expedition (1899). The Danish Ingolf-Expedition danishingolfexpe0202ingo Year: 1899 46 ON THE APPENDICES GENITALES (CLASPERS) IN THE SELACHIANS. as, however, no figure is given of the part in question, seen from other sides, I cannot regard this absence as quite certain. The Jong appendix-stem is prolonged to a style reaching to the end of the terminal part. The marginal cartilages (not understood by G tint her to be particular pieces) appear to have mainly the same structure as in the Spinacidac; the ventral one has the usual overlapping plate ( T. LXIV, fig. D, D\ I). The number of the terminal pieces is only two (if not a piece T3 has been overlooked or removed by the preparation?) viz. Td and Tv, both hard and calcified, Tv being as usual largest and broadest. Rv Carchariidce. Mustelus antarcticus Gthr. A pair of dried skeletons of ventral fins with appendages in the Zoological Museum at Copenhagen. Between the basale and the appendix-stem one rather small piece b1 bearing the last ray, which is partly coalesced with the last but one; a distinct, well developed /? that seems to have been triangular. The appendix-stem is prolonged to a long, soft style reaching almost to the hindmost end of the terminal part. The marginal cartilages stretch over the hindmost two third parts of the chief piece, the dorsal one reaching farther forward than the ventral one; the edges of their folded parts join dorsally, leaving between them only a narrow slit. To the distal end of the dorsal marginal cartilage is added a foliaceous, slightly calcified piece, homologous with the piece Rd2 mentioned in Pri- st iurus. The number of terminal pieces is 4 (-f- 1). The two of these pieces that as usual follow the style, and together with it form the walls of the hind- most part of the appendix-slit, Td and Tv, are well cal- cified, lengthened, pointed, and Td a little longer than Tv. To the lateral edge of Td is proximal}- added a foliac
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