28 BULLETIN NO. 30, UNITED STATES NATIONAL MUSEUM. 



Page. 



PUropodat 436 



Theea, Morris 436 



Thcca (Pugivncultu) gregarea,n. B.,M. &. B..,1861 436 



Trilobiles 436 



Arionellug, ]?arrande 436 



A. (Crepicephaltu) owent, n. 8., M. & H., 1861 436-437 



JURASSIC FOSSILS. 



Lamellibranchiata ■- 437 



Gryphata, Lamarck 437 



O. talceola var. nebraacensis, M. & H., 1861 437-439 



Modiola, Lamarck 439 



If. (i'emo)/ormo«a, 11.8., M.&H., 1861 439 



CRETACEOUS FOSSILS. 



Lamellibranchiata 440 



Ostrea, Linnaons 440 



O.gabbana, n. a., M. & H., 1861 -T... 440 



Leda, ScliiHiiacher 440 



L. bimlcata, n. s., M. &H., 1861 440 



Oervillia, Def ranee 441 



G. recta, n. 8., M.&H., 1861 441 



Grenella, Brown 441 



a elegantula, n. s., M. & H., 1861 441-442 



Cardium, Liunacns 442 



O. {Hemicardiutn ?) cuHum, n. 8., M. &H., 1861 442 



O. pertemte, n. 8., M. H., 1861 442 



Oallista, Poli '. 443 



O. deweyi, Id. SlB... 1856 443 



Tellina, Linnaeus 443 



T. nitidula, n. 8., M. &H., 1861 443 



Lingula, Bruguiere 443 



i. nt«ida, n. 8., M. & H., 1861 443-444 



Oatteropoda 444 



Neritella, Hnmphrey 444 



N. nebrancensis, n. 8., M. &H.,1861 444 



Mdania, Lamarck 444 



M. (Potodoma) veUrna, n.8.,M. &H.,1861 444-445 



Cephalopoda 445 



Bacvliteg, Lamarck 445 



B. banduf, n. 8., M. & H., 1861 445 



TERTLABT FOSSILS. 



Gasteropoda 446 



Vivipara, Lamarck 446 



T. rai/jioWsano, n. 8., M. & n., 1861 446 



Helix, Linnaous 446 



H. »pa«o«a,u.8.,M. &.H., 1861 - 446-447 



H. vetema, n. 8., M. &H., 1861 447 



Correction, notes the omission of the name Arcadse on p. 428 of the Proc. for 1860 . . . 447 



25. 



Mrbk, F. B., and Ha YD en, F. V. Descriptions of new Cretaceous fossils from Ne- 

 braska Territory, collected by the expedition sent out by the Government under 

 the coimnand of Lieut. John Mullan, U. S. Topographical Engineers, for the loca- 

 tion of a wagon road from the sources of the Missouri to the Pacific Ocean. 

 <Proc. Acad. Nat. Sci. Phila., vol. xiv, pp. 21-28. 1862. Philadelphia, 1863. 



Cephalopoda : 



Page. 



ScaphitfK, Parkinson 22 



A", ventrieofiis, n. 8., M. &. H., 1862 22 



S. rerml/ormig,n.H., M. & H., 1862 22-23 



Ammoriitfs, Bruffuiire 23 



