. Bulletin of the British Museum (Natural History), Geology. . One Centimetre Fig. 3. Spatulina longispina Reconstruction. (holotype) 9-9 mm. (sag.), width at anterior border 11-9 mm. (tr.), width of axis 4-5 mm. Axis rapidly tapers to a sharply rounded, strongly elevated point, which lies a short distance (2 mm. in holotype) in front of the posterior of the pygidium. Axial rings 9-11, clearly defined at anterior becoming effaced behind. Pleural fields nearly flat, with traces of four oblique pleural furrows and three interpleural furrows anteriorly. Margin gently raised, no border furro
. Bulletin of the British Museum (Natural History), Geology. . One Centimetre Fig. 3. Spatulina longispina Reconstruction. (holotype) 9-9 mm. (sag.), width at anterior border 11-9 mm. (tr.), width of axis 4-5 mm. Axis rapidly tapers to a sharply rounded, strongly elevated point, which lies a short distance (2 mm. in holotype) in front of the posterior of the pygidium. Axial rings 9-11, clearly defined at anterior becoming effaced behind. Pleural fields nearly flat, with traces of four oblique pleural furrows and three interpleural furrows anteriorly. Margin gently raised, no border furrow. Doublure sharply infolded, 1 mm. wide, with faint longitudinal striae internally. Remarks : The species may be distinguished from S. spatulina by its long, cylindrical, pointed spines, by its slightly tapering glabella with very faint lateral furrows, and by the more distinct segmentation of the pygidium. These same characters distinguish it from S. nasifrons (R. & E. Richter). Specimen BMNH. I. 4573 was assigned by Woodward to Griffithides longispinus Portlock. However, the large eyes and the absence of a pre-glabellar field in Portlock's species preclude the inclusion of the present specimens. The trivial name longispinus is, nevertheless, apt, and is employed 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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