20 BULLETIN NO. 30, UNITED STATES NATIONAL MUSEUM. 



Page. 



Brachiopoda 25 



JHscina temtilinfata, n. s., M. <t H., 1859 25 



D. manhattanensis, n. a., M. &. H., 1859 25 



Productiis uplendens (?) Norwood &Pratt«n 25 



P.norwoodi, Swallow 25 



P. rogersi, Norwood <fc Pratten 26 



P.pMs(«io»H«(.'), Phillips 26 



P. prattenianns, Norwood 26 



P. calhounianus, Swallow 26 



Chonetes vemeuiUana, Norwood & Pratten 26 



C. mucronata, M. & H., 1858 26 



Orth isina cra^sa, M. & H. , 1858 26 



O. umhracxdum ?, Schlot sp 26 



O. m issovrieiisis. Swallow 26 



O. shumardiana, Swallow 26 



Terebratula millepunctata, Hall 26-27 



Hhynchonella v ta, Marcou 27 



lietzia mormonii, Marcou 27 



Spirifer kentuckensis, Shumard • 27 



S. cameratus, Morton 27 



S. hemipUcata, Hall 28 



.V. Zin«a?w«, Phillips 28 



Spirifer, 28 



S. planoconvexa, Shumard 28 



Spirigera gubtilita, Shumard 28 



Spirigera ? 28 



Lamellibranchiata 28 



Monotis hawni,M. &H.,1858 28 



Myalina (Mytilus) perattenuata, M. & H., 1858 28-29 



Myalina squamosa (J. deC.) Sowerby 39 



M. suhquadrata, Shumard 29 



Edmondia? calhouni, M. (&.H., 1858 29 



Bakevellia parva,'iS.. «fc H., 1858 29 



Area carbonaria, Cox 29 



Leda subscitnla,M. & H., 1858 29 



Pleurophorus ? subcuneata, M. & H., 1858 29 



Axinug (Schizodug) ovatug, M. & H., 1858 29 



Aocinug rotundatus, Brown 29 



Allorigma? leavenworthensig, M. & H., 1858 29 



A. subcuneata, M. & H., 1858 29 



AJ altirogtrata,M.&, H., 1858 29 



A.f cooperi.M. &H., 1858 29 



Leptodomug granosug, Shumard 29 



Gagteropoda 30 



PUurotomaria humerosa, M. &. H., 1858 30 



P. subturbinata.M.&.B.., 1858 30 



Bellerophon ? 30 



Euomphalug 1 30 



Cephalopoda 30 



Nautilus eccentricug, M. & H., 1858 30 



Fishes 30 



Xygtracanthus arcuatiis, Leidy 30 



Cladodits oecidentalis, Leidy 30 



Petalodns alleghaniengis, Leidy 30 



15. 



Meek, F. B., and IIayden, F. V. On a new genus of Patelliform shells from the 

 Cretaceous rocks of Nebraska. <^Am. Journ. Sci., vol. xxix, 2d ser., pp. 33-35, 

 plate i. 1860. Now Haven, 1800. 



Genus Anisomyon,* n. g., M. & H., 1860. 



Page. 



Anigomyon patelli/ormis, M. & H., pi. i, figs. 1-3 34-35 



''AvKTos, unequal; lavuv, muscle J in allusion to the unsymmetrical muscular scar. 



