. Bulletin of the Natural History Museum Zoology. 126 ALLEN AND SANDERS. H Fig. 39. Propeleda carpenteri. External lateral view of the left valve and an internal view of the same valve of a syntype USNM 63151 Barbados in lOOfms. Scale = 1mm. from off limits of dorsal and ventral carinae; escutcheon lanceolate; hinge plates relatively broad, posterior plate short, occupying little more than half of postero-dorsal margin, anterior plate approximately half length of posterior, hinge teeth acute chevron-shape, relatively few in number, up to 18 in posterior series and 16 in anterior; lig
. Bulletin of the Natural History Museum Zoology. 126 ALLEN AND SANDERS. H Fig. 39. Propeleda carpenteri. External lateral view of the left valve and an internal view of the same valve of a syntype USNM 63151 Barbados in lOOfms. Scale = 1mm. from off limits of dorsal and ventral carinae; escutcheon lanceolate; hinge plates relatively broad, posterior plate short, occupying little more than half of postero-dorsal margin, anterior plate approximately half length of posterior, hinge teeth acute chevron-shape, relatively few in number, up to 18 in posterior series and 16 in anterior; ligament internal, oblique, posterior to umbo; internal shell ridge extends from mid posterior margin to approximately opposite the mid-point of the posterior hinge plate between and parallel to the lines of the post-umbonal maximum length of the present speci- mens is In most specimens the posterior shell margin is damaged, often being markedly shortened and specimens frequently show regenera- tion of the shell posterior to the posterior adductor. The repaired shell is without concentric ornamentation. It is possible that ex- tended siphons are predated upon and that the shell is damaged when this 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 Natural History Museum (London). Andover : Intercept
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