86 Avicula. ■ TERRAINS PALÉOZOIQUES. 



Î35. eximîa, 1845, Verneuil, Murch. et deKeys. Russie, 2, p. 324, 



pi. 21, fisr. 10. Russie, Zadousk. 

 ffSG. riia^iestriaia, d'Orb., 1847. Lima rugœstriala, Hall, 1843. 



Natur. hist. of New-York, n» GO, fig. 3. Etats-Unis, New-Yoïk, Rock- 

 ville, Allogany-county. 

 737, siïborlîicularîs, d'Orb., 1847. Pterinea suborbicularis , Hall, 



1843. Natur. hist. of New-York, n° 60,lig. 1. Etats-Unis, New-York, 



Hobbieville, AUegany-county. 

 Î38. spcciosa, Hall, 1834. Natur. hist. of New-York, 11° 54, fig. I et 



1 a. Etats-Unis, New-York, Portage-group. 

 'î'39. inui'icata, Hall, 1843. Natur. hist. ol" New-York, n» 39, fig. a. 



Etats-Unis, New-York, Avon. 

 î4:0. americaiia, d'Orb., 18A1. Avicula kcvis, Hall, 1843. Natur. hist. 



of New-York, n» 39, fig. 6 (non lœvis, Goldfuss, 1835). Etats-Unis, 



New-York, Avon. 

 î*!. tequilatera. , Hall, 1843, Natur. hist. of New-York, n» 39, 



fig. 7. Etats-Unis, New-York, Bloomfield, Ontario-cownty. 

 Î^S. si$;iiata, Hall, 1843. Natur. hist. of New-York, n» 60, fig. 5. 



Etats-Unis, New-York, Rockville. 

 74z3. llalleana, d'Orb., 1847. A.'decussata, Hall, 1843. Natur. hist. 



of New-York, n" 44, fig. 1 et 2 (non Munster, 1838). Etats-Unis, 



New-York, Haniilton-group. 

 74:4:. siibpcctiniformis, d'Orb., 1847. il-pectiiu/ornus. Hall, 1843, 



Natur. hist. of New- York, n" 58, fig, 1 et 2 (non Geinitz, 1842). 



Etats-Unis, New-York, Chemung-group. 

 743. lon!i-isi»ina, Hall, 1843. Natur. hist. ot New-York, no 68, 



fig. 3. Etats-Unis, New-York, Painted-post. 

 ff^rG. spinîîï«ra, Conrad, Jour. Acad. nat. se, vol. 8, p. 237, pi. 12, 



fig. 18. Hall, 1843. Natur. hist. of New-York, u° 58, fig. 4. Etats-Unis, 



New-York, Painted-post. 

 S'4S'. subfrasçilis, d'Orb., 1847. A. fragilis, Hall, 1843. Natur. hist. 



of New-York, n" 51, fig. i et 2 (non Deshayes, 1824). Etats-Unis, New- 

 York, Genesee-slate. 

 74H. orbiculata, Hall, 1843, Natur. hist, ofNew-York, no 43, fig,I. 



Etats-Unis, New-York, Hamilton-group,!Eighteen-Millecreek. 

 3*4:9. convexa, d'Orb., 1847. Pecten convexus,'ïia.\\, 1843. Natur.hist. 



of New-York, no 60, fig. 7. Etals-Unis, New-York, Painted-post. 

 ff50. striaia, d'Orb., 1847, Peclenstriatus, Hall, 1843, Natur. hist. 



of New -York, n" 60, lig. 7. Etats-Unis, New-York, Painled-post. 

 ffSl. froBJUîaia, il'Orb., 1847. recten crenulatus, HaW, 1843. Natur. 



hist. of New-York, no 60, fig. 8. Etats-Unis, New-York, Rockville. 

 Î52. «lolaHiriformis, d'Orb., 1847. T ecten dolahriformis, Hall, 1843- 



Natur, hist. of New-York, n" 60, fig. 9. New-York, Rockville. 

 usa. sHl»sfraiiiil«)sa , d'Orb. , 1847. Peclen (jranulosus , Pliil.,Pal 



fos., pi. 21, fig. Ih (non Sow., 1827). Angl,, Petherwin. 

 'Î5'l:. aractinoidea, d'Orb., 1847. Pecien a7-aclinoideus,Vh'û., Pàl 



foss., pi. 21, fig. 80. Angleterre, Peiherwin, 

 ÎSS. nolytrifha, d'Orb., \8h7.Peclcn iwlylrichus, Phi!,, Pal. fosS. 



pi. 21, fig, 76, Angleterre, Brushford, 

 956. Ro>ialia, d'Orb., ii^il. A.radiata, Gnlûtus. Pecten transversui 



