. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. THE FISHES OF THE «INGOLF>. EXPEDITIONS. rows, with numerous fine or somewhat larger spinules on the lateral margins of this part of the body. The teeth are small, fine and pointed; I counted c. 34 rows from one corner of the mouth to the other. The dorsal fins are closely approximated, not even completely separated. The specimen No. I is light grayish on the back, uniformh- dark on the belly; on the other hand No. II is quite white on the belly, light brownish-grayish on the back. On the ventral face there are, as most c
. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. THE FISHES OF THE «INGOLF>. EXPEDITIONS. rows, with numerous fine or somewhat larger spinules on the lateral margins of this part of the body. The teeth are small, fine and pointed; I counted c. 34 rows from one corner of the mouth to the other. The dorsal fins are closely approximated, not even completely separated. The specimen No. I is light grayish on the back, uniformh- dark on the belly; on the other hand No. II is quite white on the belly, light brownish-grayish on the back. On the ventral face there are, as most commonly in the Skates, no thorns at all. A younger male, 201""" long and 106™'" broad, from the Davis Strait (235 fathoms) with minute genital appendices is mentioned b}- me previously (1. c. 1891, p. 32). I therefore restrain myself to some brief remarks on this specimen, compared with the here described adult males. The point of the snout is hardly visible as such. The pectoral margin of the disk is slightly sinuous, not forming a quite straight line; but a sharp incision does not occur. The back is quite covered with small sjjines until towards the posterior margin of the pectoral fins; also the ventral fins are partially thorny, while at a later stage they are naked. But between this uni- form clothing of the trunk, the fins and the tail some spines a little larger make their ajipearance, some on the back of the snout, 3 pairs of supra- orbitals, one pair of suprascapulars and a single row of about 37 in the median line of the back, com- mencing behind the head and continued almost to the dorsal fins on the tail — accompanied on the back of the tail by middle-sized spines forming the transition to the general clothing with spinelets. Thus during the growth of the animal a rich development of larger spines takes place untill the above described stage of evolution is attained. The color of the back is brown with some more or less distinct round specks
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectscientificexpedition
