. Breviora. 10 BREVIORA No. 161 In Malaclemys terrapin terrapin, Clemmys caspica caspica, Clemmys guttata, Grapteniys pseudogeographica, Graptemys kohni, Ciiora amhoinensis, Pscudemys fioridana and Pseudemys texana, the muscidaris striatum pidmonule, though only partly covering the lung, is well developed compared to other Emydinae. In these emydines the medial part of the muscle arising from the side of the thoracic vertebrae is well developed and quite extensive, while the lateral part of the muscle with its origin from the carapace, though well developed, is comparatively small
. Breviora. 10 BREVIORA No. 161 In Malaclemys terrapin terrapin, Clemmys caspica caspica, Clemmys guttata, Grapteniys pseudogeographica, Graptemys kohni, Ciiora amhoinensis, Pscudemys fioridana and Pseudemys texana, the muscidaris striatum pidmonule, though only partly covering the lung, is well developed compared to other Emydinae. In these emydines the medial part of the muscle arising from the side of the thoracic vertebrae is well developed and quite extensive, while the lateral part of the muscle with its origin from the carapace, though well developed, is comparatively small Fig. 10. Diagrammatic sketch of the disposition of the respiratory muscles in Pleurodira forms in which the muscuJaris siriatum pulmonale is partial and the diaphragmaticus muscle is absent. in extent. However, in Malaclemys terrapin terrapin, Graptemys pseudogeographica and Graptemys kohni the lateral part of the muscle is comparatively more developed than in the other emy- dines listed above. The place of oriain of the lateral part of the muscle in these three forms is parallel to that of the medial part of the muscle (Fig. 3). In Pscudemys fioridana and Pseu- demys texana the place of origin of the lateral part of the muscle is perpendicular to that of the medial part of the muscle (Fig. 4).. 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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