Report of the State Geologist. 



301 



LAMELLIBEANCHIATA. 



List op Genera Illttstrated on the Plates of the Report of the 

 State Geologist for 1882, Prepared by Mr. C. E. Beecher. 



List of Genera not Illustrated on the Plates of the Geologist's 

 Report of 1882, together with the Author's Name and References 

 TO THE Earliest Publication of the Same. 



1. Entolium, Meek. Geol. of California, vol. 1, app. B, p. 478. Jurassic. 



2. Streblopteria, McCoy. Am. Mag. Nat. Hist., 2d ser., vol. 7, for figure, 



see Syn. Carb. Foss., Ireland, pi. 12, fig. 5. 



3. Vertumnia, s. g.,'H.edl. Pal. N. Y., vol, v., pt. ii.,pl. 24, fig. 12. Vertumnia 



avis. 



4. Avicula, Klein, 1753. Ostrese. 



5. Actinodesma, Sandberger. Nassau, PI. 29, figs. 17, 17a. A. malleiforme. 



Sand. 



6. Pteronitella, Billings. Pal. Foss, vol. 2, 1874. PL 9, fig. 5. 



7. Pseudomonotis, Beyrich, 1862. Deutsch Geol. Gesell., vol. 14. 



