. Bulletin of the British Museum (Natural History), Geology. . Fig. 22 Proptems elongatus Wagner. Restoration of skeleton with scales omitted, x f approx. Horizon and Localities: Lower Kimmeridgian of the Eichstatt region, Bavaria, Germany. Material. BM(NH): 37935a & b, 37099, 37088, P5547; RSM: ; Mu: , AS. ; CM: 4718, 4824; Ei: four specimens. Remarks. Vetter's (1881) incomplete specimen of//, parvus most probably belongs to this species, as does his N. macropterus. As explained above, Woodward's specimens of this species were incorrectly ascribed to P. speciosus
. Bulletin of the British Museum (Natural History), Geology. . Fig. 22 Proptems elongatus Wagner. Restoration of skeleton with scales omitted, x f approx. Horizon and Localities: Lower Kimmeridgian of the Eichstatt region, Bavaria, Germany. Material. BM(NH): 37935a & b, 37099, 37088, P5547; RSM: ; Mu: , AS. ; CM: 4718, 4824; Ei: four specimens. Remarks. Vetter's (1881) incomplete specimen of//, parvus most probably belongs to this species, as does his N. macropterus. As explained above, Woodward's specimens of this species were incorrectly ascribed to P. speciosus. Description, (i) General features. P. elongatus displays the characteristic form of the genus, in which the depth of the trunk decreases posteriorly from the level of the first dorsal fin-ray to form a narrow caudal peduncle (Fig. 22). Most specimens are about 100 mm in length. (ii) Skull roof and braincase. The skull roof is exposed in dorsal view in the acid-prepared specimen (Fig. 23). It resembles that of Macrosemius in its general proportions, although the preorbital region of the frontals is shorter in comparison with the postorbital region. The parietal has similar relationships to the surrounding bones as in the type genus; in contrast, however, the frontoparietal suture is serrated. As usual, the supratemporal commissure passed through the parietal close to the posterior border; the canal was exposed dorsally by a single fenestration, and also along a short distance across the midline as it passed from one parietal to the other. Anterior to the commissure the surface of the parietal forms stout, radiating ridges bearing tubercles of ganoine. These ridges decrease in height and disappear before the suture with the frontal is reached. The anterior and middle pit-lines form short, deep grooves, lying at about 45 degrees to each other, across the ridges. The supratemporal is not preserved; it must have been very similar in form and position to that of Macrose
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