. Breviora. 12 BREVIORA No. 398. <zr 1 mnri Figui-e 5. Pseudobeaconia bracaccinii Bordas. MCZ 12912. Prox- imal lepidotrichia and distal radials of dorsal fin rays 7-10. Right side. ments become progressively more curved. Two grooves extend along the entire length of each fin ray, running close to the an- terior and posterior edges. At their proximal ends, these grooves open into broad depressions so that there is an anterior and a posterior depression on each side of the base of every fin ray. As one passes anteriorly along the dorsal fin ray series, the an- terior depressions become progr
. Breviora. 12 BREVIORA No. 398. <zr 1 mnri Figui-e 5. Pseudobeaconia bracaccinii Bordas. MCZ 12912. Prox- imal lepidotrichia and distal radials of dorsal fin rays 7-10. Right side. ments become progressively more curved. Two grooves extend along the entire length of each fin ray, running close to the an- terior and posterior edges. At their proximal ends, these grooves open into broad depressions so that there is an anterior and a posterior depression on each side of the base of every fin ray. As one passes anteriorly along the dorsal fin ray series, the an- terior depressions become progressively larger, while the poste- rior depressions become progressively smaller (Fig. 5). The probable significance of these features is discussed below. Squamation. The scales are restored in Figure 4. There are 35 transverse scale rows between the anterior transverse scale row and the row in front of the anterior caudal fin ray. The positions of the pelvic, dorsal, and anal fins relati\'e to the scale rows is given in the formula: 25 13 21 35 (See WestoU, 1944: 20. Note that, because there is no clear hinge line in Pseudobeaconia, the last figure gi\en in Westoll's formula is not used here.) The scales in the trans\erse row im- mediately behind the pectoral girdle are considerably longer an- teroposteriorly than are the scales in any other row. Each scale in the lateral line series has a slight indentation in its posterior border, coinciding with the lateral line canal. The outlines of all the other scales are smooth. There is no hinge line between the scales of the body and those of the caudal lobe. Ornament. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. , Museum of Comparative Zoology, Harvard University
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