. Bulletin of the British Museum (Natural History), Geology. REVISION OF ACTINOPTERYGIAN AND COELACANTH FISHES 265 indication of ridging anteriorly, but the remaining rays and the median gular are comparatively smooth. The character of the ornamentation of the skull roof makes the interpretation of the suture lines in that region difficult. However, one specimen of Ptycholepis bollensis, No. 10800, from the Upper Lias of Ohmden, Wurttemberg, in the Tubingen Museum, is flattened dorso-ventrally and shows the whole skull roof. From this. Excl 10 mm Fig. 14. Ptycholepis bollensis Agassiz. Sketch
. Bulletin of the British Museum (Natural History), Geology. REVISION OF ACTINOPTERYGIAN AND COELACANTH FISHES 265 indication of ridging anteriorly, but the remaining rays and the median gular are comparatively smooth. The character of the ornamentation of the skull roof makes the interpretation of the suture lines in that region difficult. However, one specimen of Ptycholepis bollensis, No. 10800, from the Upper Lias of Ohmden, Wurttemberg, in the Tubingen Museum, is flattened dorso-ventrally and shows the whole skull roof. From this. Excl 10 mm Fig. 14. Ptycholepis bollensis Agassiz. Sketch of a specimen from the Lias of Holzmaden, Germany, in the Tubingen Museum. Sang Ang Den. 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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