. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Fig. 5. Diagrammatic representation of the suture of A, Arctoceras hi berculatum (Smith) from a largo mature specimen, X ; B, A. tubercu- latum (Smith) from specimen of mm. in diameter, MCZ 5325, X ; C, A. tuberculatum (Smith) from specimen of mm. in diameter, MCZ 5324, X ; D, A. tuberculatum (Smith) holotype USNM 74995, X (from Smith, 1932, pi. 50, fig. 3); E, A. tuberculatum (Smith) paratype USNM 74995, X (from Smith, 1932, pi. 50, fig. 4). , from MeeTcoceras graeilitatus zone, Critten

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. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Fig. 5. Diagrammatic representation of the suture of A, Arctoceras hi berculatum (Smith) from a largo mature specimen, X ; B, A. tubercu- latum (Smith) from specimen of mm. in diameter, MCZ 5325, X ; C, A. tuberculatum (Smith) from specimen of mm. in diameter, MCZ 5324, X ; D, A. tuberculatum (Smith) holotype USNM 74995, X (from Smith, 1932, pi. 50, fig. 3); E, A. tuberculatum (Smith) paratype USNM 74995, X (from Smith, 1932, pi. 50, fig. 4). , from MeeTcoceras graeilitatus zone, Crittenden Spring, Elko County, Nevada. D, E, from MeeTcoceras beds, Union Wash, Inyo Range, 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum

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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology