TSIiriTA (MSRISOA) AE-^UI STRIATA Say var. BO'YDEITEIvSIS n. var. 



Tellina ( I-.!erisaa ) aequlGtrlata Dall, 1900, Trans. Wagner ?ree 

 Inst. Sci., Philadelphia, vol. 2, pt. 5, p. 1020 ( ez 

 parte, non Say). 



Description .- Shell of raedi-um size, thiii, raoderately elong- 

 ated, inegnilsteral, slightly ca^ ve:^. anfc er iorly, eornoreGsed and 

 fle:^ed posteriorly; atit ero-dor sal margin excavated near the urabo, 

 roioiiding into the broadly ronncled anterior cnci; postero-dorsal 

 msrgin straitrrt, meeting vhe guu o. laicated nitixln oi" the narrow 

 posterior slope at a sharp angle of about 110 ; base asymnietri- 

 cally arcuate, being more convex Tjoster iorly ; umbo aeufce, placed 

 behind the median horizontal; post'.rior carina lo"", but v/ell-de- 

 fined by the change in direction of the concentric sculpture, 

 -olaced near the rcarjrin: S",rface sculTotirre"- with relatively fine 

 concentric a:aellac-, aoru^tly I'lexed at the posterior carina and 

 slightly archer! on the posterior slope; right valve with "-eli- 

 de fined laterals. 



Pi: .ensions. - Length, 1 .5 rm. ; alt., 12 nini. ; semidiani. , 

 3 mm. 



Rein arks .- The collections at hand hnve furnished a sin^-lo 

 right valve of this variety, •.vhich differs from the uypieal 

 aequistriata , ranging from the Ohipola to the Recent, by being 

 more elongatet^, more inequilateral, ,mor e produced and hir'ht-r 



