. Report of the Commissioner - United States Commission of Fish and Fisheries. the ocnlar region, tlie greater part of the upper surface ofventrals and of the basal two-thirds of the under side of the tail, alone naked. Nolarge spines or prickles on orbital rim. A band of enlarged prickles on eacii side oftail. An uninterru])tedserit^s of 21 large spines with \ery broad bases extends alongmedian line of tail to opposite (rout of ventrals. After an inteiru])tion,it reajipearsin a series of 3 sjiines on middle of back. A single spine between dorsal lins. Pec-toral hooks very weakly and iiregnlar
. Report of the Commissioner - United States Commission of Fish and Fisheries. the ocnlar region, tlie greater part of the upper surface ofventrals and of the basal two-thirds of the under side of the tail, alone naked. Nolarge spines or prickles on orbital rim. A band of enlarged prickles on eacii side oftail. An uninterru])tedserit^s of 21 large spines with \ery broad bases extends alongmedian line of tail to opposite (rout of ventrals. After an inteiru])tion,it reajipearsin a series of 3 sjiines on middle of back. A single spine between dorsal lins. Pec-toral hooks very weakly and iiregnlarly developed. They are usually interradial inposition, have at most 3 or 4 in a series, and develop , the s])inc8 beingsometimes directed backwards instead of inwards. They are not arranged in definitelengthwise series. Some of them renuiin permanently in an undevelojxd eoiuliti(mas elongate soft papilbe, and the gaps in the series indicate the total disappearanceof others. Report U. S- F. C. 1893. Ichthyological Collections. (To face page 396.) Plate 20. £>. RAJA ABYSSICOLA sp. nov. ICHTHYOLOGICAL COLLECTIONS OF THE ALBATROSS. 397 Disk very broad, the outer aaujles of pectorals behind its middle. Anterior profileconvex opposite the orbits, strongly concave both in front of and behind this space deeply concave, the cranial cartilage apparently thin and , 31-31. Claspers very long and slender, dilated distally, everywhere so readilyflexible as to be easily bent at an acute angle. A wide lateral Ibid along either sideof tail. Dorsals verj^ high and near together; caudal fold but little higher than thelateral ones, with which it becomes conflueut at tip of tail. The following table of measurements in millimeters will give the projiortions of thetype: Greatest width of disk 730 Distance from tip of snout to front of eye 185 Width at front of eyes 185 ] Distance between eyes 60 Tip of snout to axilOf pectoral 570 | Width of spiracles 33
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectfisheri, bookyear1895
