. Bulletin of the British Museum (Natural History), Geology. 126 E. F. OWEN Number length width thickness Number length width thiol BB82350 37-2 30-8 21-6 BB82355 340 26-3 191 BB82351 340 27-9 20-2 BB82356 3M 25-5 18-9 BB82352 34-5 250 191 BB82357 30-2 23-6 180 BB82353 30-8 251 199 BB82358 27-9 23-4 171 BB82354 311 25-5 190 BB82359 29-3 23-4 17-2 Moutonithyris anglia sp. nov. Fig. 22; PI. 6, figs 22-24 Diagnosis. Consistently oval in outline. Maximum width at half valve length. Strongly ventri- biconvex. Uniplicate to incipiently biplicate. Umbo truncated by large circular foramen; beak subere
. Bulletin of the British Museum (Natural History), Geology. 126 E. F. OWEN Number length width thickness Number length width thiol BB82350 37-2 30-8 21-6 BB82355 340 26-3 191 BB82351 340 27-9 20-2 BB82356 3M 25-5 18-9 BB82352 34-5 250 191 BB82357 30-2 23-6 180 BB82353 30-8 251 199 BB82358 27-9 23-4 171 BB82354 311 25-5 190 BB82359 29-3 23-4 17-2 Moutonithyris anglia sp. nov. Fig. 22; PI. 6, figs 22-24 Diagnosis. Consistently oval in outline. Maximum width at half valve length. Strongly ventri- biconvex. Uniplicate to incipiently biplicate. Umbo truncated by large circular foramen; beak suberect. Name. 'England'. Description. Because of their similarity, this species has, until now, been compared with M. dutempleana. Moutonithyris anglia, however, has a consistent oval outline and a very marked. ^0-^„^?ie57-„ 3^5:5?",. 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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