. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. 274 Annals of the Carnegie Museum. Unio pictorum (Linnaeus) 175S. See also Ortmann, 1911c, p. 21. A large number of specimens, both males and females, are at hand, from various parts of Germany and Hungary, received from W. Israel. sa. Fig. 11. Unio pictorum (Linnaeus). Male, from Saale River, Rudolstadt, Germany. (Cam. Mus., No. 61, 4,934.) Branchial opening separated from the anal by a complete diaphragm formed only by the gills. Anal opening closed above by the union of the margins of the
. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. 274 Annals of the Carnegie Museum. Unio pictorum (Linnaeus) 175S. See also Ortmann, 1911c, p. 21. A large number of specimens, both males and females, are at hand, from various parts of Germany and Hungary, received from W. Israel. sa. Fig. 11. Unio pictorum (Linnaeus). Male, from Saale River, Rudolstadt, Germany. (Cam. Mus., No. 61, 4,934.) Branchial opening separated from the anal by a complete diaphragm formed only by the gills. Anal opening closed above by the union of the margins of the mantle, forming a supra-anal; this mantle-con- nection is rather long, slightly longer than the anal, and about as long as the supra-anal. Inner edge of bran- chial with distinct papillae, that of the anal almost smooth, or with very minute crenulations. In front of the branchial the inner edge of the mantle is practically smooth. Palpi subfalciform, their pos- terior margins united for about one-third of their length, or slightly more. Gills (corresponding to the shape of the shell) rather long and narrow, the inner the wider, chiefly so anteriorly. Anterior end of the gills as usual, that of the inner widely distant from the palpi. Outer lamina of outer gill entirely connected with the mantle, inner lamina of inner gill free from abdominal sac, with excep- tion of its anterior end. Both gills with well-developed water-tubes and continuous septa. The septa of the inner gill of the male (see Plate XVIII, fig. 3) and. 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 Carnegie Museum; Carnegie Museum of Natural History. [Pittsburgh] : Published by authority of the Board of Trustees of the Carnegie Institute
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