. Bulletin of the British Museum (Natural History). PEBASIAN MOIXUSCAN FAUNAS 251. Figs 263-265 Longiverena eucosmia (Pilsbry & Olsson) and L. eucosmia mugrosana (Pilsbry & Olsson). 263, ANSP 13088; bedding plane in borehole core with lectotype (selected herein) of Hemisinus (Longiverena) eucosmius Pilsbry & Olsson, figured by Pilsbry & Olsson (1935: pi. 3, fig. 2). Well 660, depth 1803-1815 feet. Middle Magdalena Valley, Colombia (the two accompanying and damaged paralectotypes were neither figured nor discussed by Pilsbry & Olsson); x 4. 264, Longiverena eucosmi
. Bulletin of the British Museum (Natural History). PEBASIAN MOIXUSCAN FAUNAS 251. Figs 263-265 Longiverena eucosmia (Pilsbry & Olsson) and L. eucosmia mugrosana (Pilsbry & Olsson). 263, ANSP 13088; bedding plane in borehole core with lectotype (selected herein) of Hemisinus (Longiverena) eucosmius Pilsbry & Olsson, figured by Pilsbry & Olsson (1935: pi. 3, fig. 2). Well 660, depth 1803-1815 feet. Middle Magdalena Valley, Colombia (the two accompanying and damaged paralectotypes were neither figured nor discussed by Pilsbry & Olsson); x 4. 264, Longiverena eucosmia mugrosana (Pilsbry & Olsson), ASNP 13087; holotype of Hemisinus (Longiverena) mugrosanus Pilsbry & Olsson, figured by Pilsbry & Olsson (1935: pi. 3, fig. 1), Olsson & La Tour Colin; x 4. 265. GG19865; latex cast of external mould, L. eucosmia; specimen recorded as Aylacostoma dickersoni (Palmer) by Bristow & Parodiz (1982: 48); Miocene, Basal Azogues Formation; Loc. CRB 1, Cuenca Basin, Ecuador; Bristow Colin; x 4. \ 266a. 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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