. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. Science. Fig. 1. The dorsal valve in profile, showing the deep sinus in front, the crnral processes ( c 1 and c 2 ), the median septum (s), and muscular impression (a). rig. 2. The dorsal valve, looking- vertically into the interior. The upper crural pro- cesses ( c 2 ) are not quite sufficiently divergent. Fig. 3. The ventral valve, showing the'form of the muscular impressions {a, R) and the teeth (O-
. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. Science. Fig. 1. The dorsal valve in profile, showing the deep sinus in front, the crnral processes ( c 1 and c 2 ), the median septum (s), and muscular impression (a). rig. 2. The dorsal valve, looking- vertically into the interior. The upper crural pro- cesses ( c 2 ) are not quite sufficiently divergent. Fig. 3. The ventral valve, showing the'form of the muscular impressions {a, R) and the teeth (O- Fig. 4. The ventral valve preserving a part of the dorsal valve attached, showing the first crural processes ( c 1) extending into the muscular cavity. The exten-^ sion of the shell in front is broken off, to show the 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 New York State Museum. Albany, Regents of the University of the State of New York
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectscience, bookyear1853