- 7^78 - 



SectiOi- PhlvQ^iderna Dall. 

 DIPIOHOL^A (PHLYOTIDSrti.'A) PlThGTUr^IIA Dall. 



Dj-'pl d. OTu. a -Qimo tnrella. Jail . 1809, Jour. Ooncli., vol. 9, no. 8, 



-p. 245-246. 

 Diplodonta ( Phl^'ctideriiB / pimoturella Jail, 1..'^,^, .. ux-o. vVagner 



Free Inst. 3ci., Philadelphia, vol. ^, '^t . 5, p. 110.'^, 



pl. 45, fi ^. 26. 

 Diplodonta ( Phlryctideriria ) puiic tiirej la Dall, Dall and Simpson, 



1901, Ball. U. 3. ?ish Ooinm. , vol. 20, pt. 1, p. 495. 

 ICot Diplodonta ( PhlyGticler"ia ) piinetnrell a Dall, 1915, Bull. U. 



C), Kat. ivi'is,, no. 90, p. 140. 



Descriptinn .- "Shell small, tl'iin, rouride"-, moderately con- 

 vex, v:ith inconspicuous healcs, outline nearly circular, the bealis 

 smooth, but the Test of the external surface closely minutely 

 punctate all over, other characters as in t^.-oioal Dinlodonta , 

 like D. ca.uuloides . but less turgid. Alt. 6.7, lat. G.5, cliam. 

 4 mm. " 



"The minctation 0"f the Rin-fa'^e is ,. ''].o?"e anri ree";lar. 

 not pustulose, lilre most of the L^'xciee " ''liG section," (Dall, 

 1900). 



Type l ocality .- Bov.'den, Janiaioa, 



Iveaiarks.- Olie two valves tlia t are the onlj, representatives 



