- 744 - 



SeotiDn Pleuroluc ina Dall. 



PMOoiDES (pi;:ui^oiuaii:fl.) quadhioos'^^.: : jjaii. 



Phaeoides ( Pleurol-'aoina ) qiiadrl cost atiis Dall, 1905, Trans. Ta.'jner 

 :?ree Inst. Sci., " ' ^ iclelphia, vol. C, pt. u, p. 1368, 

 pi. 50, fig. 7. 



Descrlr^tlon .- "Shell snail, plump, olDliciue, high, short, 

 with strong Ij-' ir'pressed large dorsal areas; bea'^rs small, -orosogy- 

 rate, overhanging a very snHll cavernous luii' "" _ ; lic^'s.-- p-nt short; 

 surface densely covered T7ith high, concentric larnellc.e 

 slightly wider interspaces, the d.istal edges of the lamellae 

 wider and re f le "- f-^ '"'' 'lorsally; radial sculpture of four rapidly dis- 

 tally widening broad ribs separated by narrow sulci, the two 

 inner ribs wider than the outer pair; hinge normal, strong; 

 scars normal; Inner margins of the valves crenate. Alt. ■', lOi.. 

 5, diara. 7 ram." 



"This is doubtless the orecursor of the following species 

 r^. aTiiabilis T)ai:| and of the .^.^ent v. leucooyma Oall." (Dall, 

 1305). 



Type looalit;." .- Eov^/den, Jamaica. 



Remar^.- Two -'^•i ^'•■-c- ^ ri-.-.a. •- either collc^-'-" ■^••\ are the 



only representatives of this interesting species. It stands 



