. Breviora. 8 BREVIORA No. 329. Fig. 3. a. Amid calva. ventral view of left vomer. /', A. fra^osa, the same. Hell Creek Formation, Montana, MCZ 9287. c-e, A. calva. medial views of left opercular series; sizes: c. MCZ 8970, Standard ;th 45 mm. d, MCZ 35780, SL 155 mm, c. unnumbered MCZ specimen. SI. 425 mm. /, A. fragosa, restoration of opercular series. Note that in c-c operculum is wider than tall, whereas in /, Figure 4. and Plate I, it is taller than wide. a-h. X 3; e-f, X 1; (-</ not to Please note that these images are extracted from scanned page images that may have been
. Breviora. 8 BREVIORA No. 329. Fig. 3. a. Amid calva. ventral view of left vomer. /', A. fra^osa, the same. Hell Creek Formation, Montana, MCZ 9287. c-e, A. calva. medial views of left opercular series; sizes: c. MCZ 8970, Standard ;th 45 mm. d, MCZ 35780, SL 155 mm, c. unnumbered MCZ specimen. SI. 425 mm. /, A. fragosa, restoration of opercular series. Note that in c-c operculum is wider than tall, whereas in /, Figure 4. and Plate I, it is taller than wide. a-h. X 3; e-f, X 1; (-</ not to 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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