Archive image from page 109 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex2apt1a5daniuoft Year: 1899-1953 Fig. M. iijS''' (from the foremost edge of the pelvis to the hindmost point of the appendix the length is 24='')'); the largest breadth is foinid somewhat above the hindmost point of the fin-membrane, and is abont 3,5''. The ventral side is flat, covered with dermal teeth till the naked terminal part (4,3''™ long, 2,1''' at the broadest spot, at the base); these dermal teeth are flat, and form a complete mosaic, only a little rongh to the feeling
Archive image from page 109 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex2apt1a5daniuoft Year: 1899-1953 Fig. M. iijS''' (from the foremost edge of the pelvis to the hindmost point of the appendix the length is 24='')'); the largest breadth is foinid somewhat above the hindmost point of the fin-membrane, and is abont 3,5''. The ventral side is flat, covered with dermal teeth till the naked terminal part (4,3''™ long, 2,1''' at the broadest spot, at the base); these dermal teeth are flat, and form a complete mosaic, only a little rongh to the feeling, wlien rnbbed with the finger towards the base, and it is of qnite the same natnre as that covering the ventral .side of the rest of the fin 2); the whole surrounding of the clo- aca as well as the .space from there to the foremost lateral corner of the fin is naked (with a few scattered groups of teeth); further- more a naked stripe stretches from the hindmost inner edge of the fin-membrane, where the fin is laid against the appendix, some wa\' on the ventral side of the fin. Both edges as well as the whole dorsal side of the appendix are naked. The somewhat triangularh- pointed terminal part shows, when seen from the dorsal side, the appendix-slit (af) situated near the lateral edge; a rather large, foliace- oiis fold of the skin, which includes the skeletal piece Td,, originates from the dorsal lip of the slit; the proximal end of this fold stretches into the (half-) tube formed b\- the distal ends of the marginal cartilages. Accordingly there will, on both sides of this plate, be an outlet from the canal of the glandular bag in the broad part of the ; the real continuation, howe\'er, of this canal is here, as everywhere, situated in the terminal jjart laterall\- of the said fold (at aj). If the fold is thrown back, there will in the lateral margin of the appendix-slit proper be seen a rather large 1) Miiller & Heiile p. 99 state in characterising the genus:
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Photo credit: © Bookive / Alamy / Afripics
License: Licensed
Model Released: No
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