. Bulletin of the British Museum (Natural History), Geology. 3°6 THE OLD RED SANDSTONE OF BROWN CLEE HILL Description. The holotype is a large slab of yellow sandstone, unlocalized but identical in matrix with those from Farlow, which shows the remains of a medium- sized fish. It includes numerous scales, the anterior part of the tail, part of the vertebral column and the left cleithrum. The cleithrum (Text-fig. 60) is almost complete, having lost only a little of its dorsal border, and the anterior ventral margin, where it is overlapped by the clavicle, is slightly compressed. It is 8-o cm. h
. Bulletin of the British Museum (Natural History), Geology. 3°6 THE OLD RED SANDSTONE OF BROWN CLEE HILL Description. The holotype is a large slab of yellow sandstone, unlocalized but identical in matrix with those from Farlow, which shows the remains of a medium- sized fish. It includes numerous scales, the anterior part of the tail, part of the vertebral column and the left cleithrum. The cleithrum (Text-fig. 60) is almost complete, having lost only a little of its dorsal border, and the anterior ventral margin, where it is overlapped by the clavicle, is slightly compressed. It is 8-o cm. high and has a breadth of 2-5 cm. which does not vary more than 2 mm. from one end to the other and it is not divided clearly into dorsal and ventral parts as in the type species (cf. Text-fig. 61 ; Jarvik, 19446 : 12, text-figs. 3D, 4D), and the posterior margin is almost straight without. Fig. 60. Eusthenopteron farloviensis sp. nov. The left cleithrum. Pr. CI. process of cleithrum. The holotype. [Church Quarry, Farlow.] x 1. Fig. 61. Eusthenopteron foordi Whiteaves. The right cleithrum (reversed). Pr. CI, process of cleithrum. Scaumenac Bay, , Canada. , x 1. the " heel " shown in the Canadian species. Moreover, the process of the cleithrum at the top of the border along the overlap of the clavicle is large and the ventro- median projection less developed. On the other hand the ornamentation, so far as it can be determined, is the same as in E. foordi as shown in P. 6797a, consisting of vermiculating ridges which become very tubercular on the ventral face, which in life was bent horizontally underneath the fish. This tubercular development is not shown in Jarvik's figures. There are about 80 cycloid scales, mostly preserved as external impressions. They vary in size from 1-5 x 1*3 cm. to 0-9 X 1-2 cm. The ornament, as in Please note that these images are extracted from scanned page images that may have been digitally enhanced
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