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Hall, James; 1811-1898 / Geological survey of Wisconsin, 1859-1863. Palaeontology. Part third
(1871)

Plate XIV,   pp. [unnumbered]-Plate XIV PDF (707.0 KB)



                                    PLATE XIV.
                             PTERINEA BRISA, HALL.
                                        Page 384.
FIG. 1. View of the left valve of a specimen of this species partly denuded
of the shell. The
            large quadrangular muscular impression is seen near the posterior
wing; the anterior
            and posterior teeth are also visible.
                        AxIBONYCHIA ACUTIROSTRA, HALL.
                                        Page 388.
FIG. 2. View of the left valve of a full grown individual.
                           AMBONYCIIA APHXEA, HALL.
                                        Page 383.
FIG. 3. View of the left valve, showing impressions of the lateral teeth.
                           MODIOL OPSIS RECTUS, HALL.
                                        Page 386.
FIG. 4. The right valve of a smallspecimen, showing the muscular impressions.
"   5. The left valve of a larger individual, showing muscular impressions
and teeth.
                          CYPRICARDINJA ARA TA, HA LL.
                                        Page 885.
FIG. 6. View of the right valve of a specimen of this species, of the natural
size.
                           MOD]OLOPSrS DICTEUS, HALL.
                                        Page 885.
FIG. 7. View of a cast of the left valve, showing impressions of the lateral
teeth.
                    CYPRICARDITES ? QUADRILATERA, HALL.
                                        Page 388.
FIG. 8. A cast of the right valve of the species.
     9. View of the anterior slope, showing the filling of the anterior muscular
impression near
            the beak.
    10. The posterior slope of the valve, showing the lateral teeth and impression
of the elevated
            muscular scar.
                       PA LGOCARDIA CORDIIFORMIS, HALL.
                                        Page 889.
FIG. 11. The right side of the cast, showing the muscular scar.
" 12. Posterior profile of the cast.
                           AMPHICWLIA     LEIDYI, HALL.
                                        Page 387.
FIG. 13. Cast of a left valve of a small individual.
" 14. Cast of the left valve of a large specimen, in which there are
faint traces of muscular
            impressions.
 "  15. Cast of another individual, having somewhat different proportions
and a more perfect
            outline.


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