. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 14 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY Table 2 - - Width of hinge-line compared to length showing the decrease in the wing width in relation to length with growth (in millimeters) Width of Hinge-line „„ Height Length Width of hinge-line Length Ilintj) -Plate. In young specimens the hinge-plate is thin, raised, and with a simple ligamental groove below the marg
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 14 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY Table 2 - - Width of hinge-line compared to length showing the decrease in the wing width in relation to length with growth (in millimeters) Width of Hinge-line „„ Height Length Width of hinge-line Length Ilintj) -Plate. In young specimens the hinge-plate is thin, raised, and with a simple ligamental groove below the margin which is separated by an internal resilium (Fig. 5). The indistinct trans- verse teeth present in the prodissoconch cease to develop in the. Figure 5. Line drawing of right valve of a specimen mm. showing hinge-line and other internal characters. early dissoconch. As the hinge-line develops, deposition of new material obliterates the larval teeth at about mm. The hinge- plate, only slightly differentiated in the very young, becomes increasingly raised along the exterior margin as the shell develops. 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. : The Museum
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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
