/IJQ _ 



THAI^SEKITSLIlA. i:iE'i;HUoA n. . 



dc-llojarU ., DeII, lOC:, _ . , i last. 



3?i., ^ ilacLrlphla, vol. , . , . Jl ( t;: ^arte ) . 



equilateral, ell-inflatecl ; iiirCc: ■,.... 



ezteriial bitriace Boulxatiu'e" v/ith fine, alosel, 



the rai'idle left cardinal o'osoiirel^- bifid; marginal ' ' lal 



2-rooyes long but usimllj' v/ell-d.' f i-oe d. 



f)i-:snsio::£. - .u..-^ 1., . ' . .; " ., . ' .; semi'liam., 

 2.5 ram. 



R:- •': .- -':. -:. _f tM- 



ovate outl' " \ , ' , 



eon centric s cia 1 "ot nr e . '"line i? Pli^~' " : elonj-atec _ 



r - ---^ -^-re fixaer - ' . ' - it., -_url, _.-.,^ ,-.,-,,. ^ 



variants of ahn-on '1^ a . I. ' " ooves are 



rr.ore ^rononnced than in the preoee \ ,, _ 



Oocx^rrei-oe.- lower Miocene : , Bavden, Jsiiaica. 



