. Bulletin of the British Museum (Natural History). PEBASIAN MOLLUSCAN FAUNAS 307. Figs 409-412 Pachydon amazonensis (Gabb). Pcbasian; Pichana, Peru; Hauxwcll Colin. 409, LL27907; a. b. right valve external and internal, x 4; c, umbonal area from above, x 15. 410, LL28062; a, b, left valve, external and internal, x 4; c. cardinal socket, x 6. 411. ; a. b. left valve, external and internal, x 10; c, inside of valve viewed obliquely from below, x 15. 412. right valve: a. external, x 10; b. internal, x Please note that these images are extracted from scanned page
. Bulletin of the British Museum (Natural History). PEBASIAN MOLLUSCAN FAUNAS 307. Figs 409-412 Pachydon amazonensis (Gabb). Pcbasian; Pichana, Peru; Hauxwcll Colin. 409, LL27907; a. b. right valve external and internal, x 4; c, umbonal area from above, x 15. 410, LL28062; a, b, left valve, external and internal, x 4; c. cardinal socket, x 6. 411. ; a. b. left valve, external and internal, x 10; c, inside of valve viewed obliquely from below, x 15. 412. right valve: a. external, x 10; b. internal, x 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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