. Biological survey of the Mount Desert Region. Natural history -- Maine Mount Desert Island. THE MOUNT DESERT REGION 77 Rotaliidae DiscoRBis Lamarck D. OBTUSA (d'Orbigny). (Fig. 28.) Our specimens agree with Cushman's (1931, pi. 6, fig. 2) figures. The circular apertural pores sho\^^l in our figure vary in size from to mm. In arenaceous mud, depth 45 feet, doubtful on gravel and blue clay, depth 87 feet and 239 feet. Stations: D 76; and with doubt D 19, Fig. 28 Diseorbis obtusa, apertural region. Cassidulinidae Cassidulina d'Orbigny C. CRASSA d'Orbigny. On blue clay, depth 21
. Biological survey of the Mount Desert Region. Natural history -- Maine Mount Desert Island. THE MOUNT DESERT REGION 77 Rotaliidae DiscoRBis Lamarck D. OBTUSA (d'Orbigny). (Fig. 28.) Our specimens agree with Cushman's (1931, pi. 6, fig. 2) figures. The circular apertural pores sho\^^l in our figure vary in size from to mm. In arenaceous mud, depth 45 feet, doubtful on gravel and blue clay, depth 87 feet and 239 feet. Stations: D 76; and with doubt D 19, Fig. 28 Diseorbis obtusa, apertural region. Cassidulinidae Cassidulina d'Orbigny C. CRASSA d'Orbigny. On blue clay, depth 210 feet. Station: D 150. Anomalinidae CiBiciDES Denys de Mont fort C. LOBATULUS (Walker and Jacob). Attached to all sorts of objects, shore to 239 feet, very common. Stations: S 48; D 19, 83, 130, 149, 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 Procter, William, 1872-1951; Mount Desert Island Biological Laboratory; Johnson, Charles Willison, 1863-1932; Blake, Charles Henry, 1901-. Philadelphia, The Wistar Institute of Anatomy and Biology
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