. Bulletin of the British Museum (Natural History). . C. P. NUTTALL Figs 75-78 Dyris tricarinata (Boettger). San Cayetano Formation, presumed Miocene; Loc. JW 424, Loja Basin, Ecuador; all x 10. 76, GG21706. 77, GG21707. 78, 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 British Museum (Natural History). London : BM(NH)

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