. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 64 ON THE APPENDICES GENITALES (CLASPERS) IN THE SELACHIANS. Two pairs of ventrals with fulh- developed appendices, now before me (nnfortiuiately I cannot give the total length of the animals) show the following measures: ~icm -cm Length of the appendix lo"^' â - - part free of the fin 6,2^" â - - terminal part 4,6â5'^ Breadth of the â â 2,7⢠at the broadest spot â - - basal part 1,6"" A dried specimen of a length of 39'^â¢, a breadth of 24'=⢠shows fnlly developed ap
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. 64 ON THE APPENDICES GENITALES (CLASPERS) IN THE SELACHIANS. Two pairs of ventrals with fulh- developed appendices, now before me (nnfortiuiately I cannot give the total length of the animals) show the following measures: ~icm -cm Length of the appendix lo"^' â - - part free of the fin 6,2^" â - - terminal part 4,6â5'^ Breadth of the â â 2,7⢠at the broadest spot â - - basal part 1,6"" A dried specimen of a length of 39'^â¢, a breadth of 24'=⢠shows fnlly developed appendices, 8""' long, and 2,2'''" broad across the terminal parts; in another specimen (in spirit) 43"" long, and 29"" broad the appendices are only 6,5'""' long, the terminal part abt. 4'^"' long, 2,1'^'" broad; here they are not yet fully developed though it was to be expected judging from the size of the animal. Facts as these, that rather grown individuals have rather undeveloped appendices, I have oftener seen, for inst. in Aca)itliias. The appendix is naked, much more clumsy than in the preceding species, flattened, somewhat roimded on the dorsal side, a/L -/âl^k ^^^ contour is clumsih" clubsliaped; the club is formed b}- the terminal part constituting more than half the length of the i^art to be seen from the back. The appendix-slit runs from the fore- 1 A)l ^ most dorsal opening laterally, so that it cannot be seen from the dorsal side except in the hindmost end of the terminal , ^'% \ where the dorsal lip, as it were, retires; the dorsal lijj, throughout the terminal part, is supported b\- inner skeletal parts reaching Ri- '' 'Jj^t \\ I - T. to its edge, while tlie soft membrane of the ventral lip as a broad wall stretches past its skeletal part (7^0) ^mcl is laid -- in a £d' E\ -^ J , â â Mi"^ a / ' similar manner as in the Skate â dorsallv against the upper lip; from the hinder,
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
