. Bulletin. Science. SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. Fig. 4. Totoaba fitchi, sp. nov. (holotype; LACM 151552), left saccular otolith, late early Miocene, upper Olcese Sand, Kern County, California. A. inner face; B. outer face; C. dorsal view; D. ventral view. Scale bar equals 2 cm. well-developed postostial lobe and a midventral notch; a short anterior cauda; and an equal or longer posterior cauda. Description.—A slightly elongate left adult saccular otolith with a subrectan- gular outline, and all margins rounded. The total length is mm, and the greatest height is mm. Meas
. Bulletin. Science. SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. Fig. 4. Totoaba fitchi, sp. nov. (holotype; LACM 151552), left saccular otolith, late early Miocene, upper Olcese Sand, Kern County, California. A. inner face; B. outer face; C. dorsal view; D. ventral view. Scale bar equals 2 cm. well-developed postostial lobe and a midventral notch; a short anterior cauda; and an equal or longer posterior cauda. Description.—A slightly elongate left adult saccular otolith with a subrectan- gular outline, and all margins rounded. The total length is mm, and the greatest height is mm. Measurements and proportional ratios for the saccular otolith of T. fitchi are summarized in Table 1. The dorsal margin is nearly straight with a slight mediodorsal notch. The anterodorsal margin has a faint, low projec- tion. The anterior margin is broadly rounded, and the ventral margin is nearly horizontal. The posterior margin is slightly blunted with a small dorsal flange present on the posterodorsal margin. The inner face is moderately convex with a pseudo-ostial sulcus. The ostium is large and spade-shaped, widening posteriorly, and occupying the anterior half of the otolith with a well-developed midventral notch. The postostial lobe is strongly developed, and the ostium is completely filled with a smooth, flat ostial colliculum. The cauda is moderately shallow and wide extending close to the posterior and posteroventral margins. The caudal joint is slightly constricted with the anterior cauda arching dorsally and then curving ventrally into a longer posterior cauda. The cauda tapers to a rounded point. The dorsal area is shallow, and the crista superior is well developed on the dorsal. 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 Southern California Academy of Sciences. Los Angeles, Calif. : The Aca
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