PLATP] XXTA\ 



MKK'ENK PP:cTKNS. 



[Tnless otherwist' shiti'd all ligurus are !ii>iirfixiinatfly iiatunil sizt-.] 



Page. 



Fig. 1. Pi'rtni ( Lyropecten ) magiuilid Conrad. V. C V7 



Exterior of right valve (anterior ear missing), altitmle 14-"i mjii. \'a(|Vier(is fdrniatiim 

 (lower Miocene), Ojai raneli, Ventnra Connty, Cal. (S. ) 



Fiu. l'. I'ccten {Li/ropectim.) miKjnoliii Conratl. L. S. J. U 77 



Exterior of umbonal region and ears; hinge line !!•') mm. Pliocene (lnwcr), lietween 

 Morro and Toro creeks, Sau Luis Obispo County, Cul. 



iV2 



