Yenerioardia includea a orolifio- Yenericardia s. . -d also a 

 snBll, ourio c fox'^':! that has been referre'^- to thi 



""" Tomeri .-i , ctlijiio ^ - ^ uiaai - 1.' 'ji-c:.[j |_r;)ujj. 



One of the most stri'ring features of the faiina ic 

 the inciiviclxial abu.. dance and ope o if ic diversification of the 

 Lucinacea. Although onlj- five genera are includerl in this siip- 

 erfamilj/, they are represented "by 52 species. The eezius Fhac - 

 oides , is the most important contribu-tor to this assemblage, it 

 alone furiiiohirj:- half of the apeci^s, distributee igbt 



sections. T":o phacoidan elements, Lucinisca and Ivliltha, and the 

 .freniio I no i n a , all of v;hiGh might be ex^iec o be r)resent, are 



abi^ent. rhe Jodakiac and ■--—^-- , : ^^ abiu.u^u.o cinv. v/ell-divor- 

 sified, while the Divaricellas are individually nuxnerons and 

 the 'Di-nlodont as, though including- four s-Decie:, , . . ^aual, 



repreL-eiiUed by a small nvjiiber o± iij.- iv iduals. 



The meager representation of the leptonacea stands in 

 decided contrast \^ith richness of the liicinoid element, the 

 entire suoerfanily includirig' only four specie^, ; - •.■ited into 



three genera and as non'^' families. Sven more than 



the K-mall number 6f s-oecies is the fact thrit t ' -' 



are re"'recented by a total of only five vs^veij. .-m intercj iixi^- 

 feature is furnished by the presence of a form belo: 

 secti-^-;; "pnterotia of the _,-- -. ^^ : odonta. 



