_ 5^^ - 



3tiT>erfamil ) j o I,: A J ':. A . 



Family Pholadirlae. 

 3 ub f ami 1 j- Jo uar n (-■ "^ i ^\ ?■- e . 

 Genus IMRTISIA Leach ': 



MAI^TESIA ? sp. indet. 



The fragoent in the national Miisenin collection to vhich 

 Dall referred (l) as a Xylooha'^'-a may probabl;- "be a T!artesi3 since 



(1). Drans. "Tafmer Free Inst. Sci., Philadelxihia, vol. Z, pt. 4, 

 . 8S2, 1898. 



the median sulcus on the shell is -Dronouneed. .his form and the 

 other burror/ers oi douDtful position are mentioned merely in 

 order to complete the faunal list. 



Occurrence^.- lower Hiocene : "^owden "^e 'S, Bo7;den, Jamaica 

 (Dall, 1898). 



