- 576 - 



Section _'elaniella D.ll, 

 JDIPIODOr, ^'A V ^..o^iu.i^^jjA) LIII»;Oit us.ll, 



Dlt)lor^oi-ta f ,?ol 811 i ell a) minor Doll ^ 1000, riv/.s. Wagner ^ree Inst. 



;ici., fhiladelphia, vol. S, • ", P- 1133, pi. 44, fig. 17, 



Desert -pt ion .- "Shell sn^aT T , Tno''''er,-^'^e"'7 conyo-:, smooth, 

 polisher", oblique, inequilateral, the lov/er anterior side loro- 

 diiced, the posterior side shorter, rounded; niarginc simple, palli- 

 al line and addnotor sosr.q r:o-r"i.ql, tv.-> ri-.-v, -f: ant erior cardinal suh- 

 Eiarginal, rather long; the poattrior oaraixial short, vertical, deep- 

 I37 "Bifid, the Tae aks low and pointed, hoth the left anterior cardi- 

 nals short, the anterior "bifid. Alt., 4.3, lat. Z.8, diam. S.5 

 T'sm . " 



"This is verj- similar to the 01ai"bornian !)_. nana and to the 

 young of the lvle'-"^iterranean _^. _ " :slls Philippi." (Dall, 19C0). 



Heiig.rks .- Tlie collectiorjs at hand, have furnished a nuinher 

 of valves of this species. It is distinguished - associat- 



ed nerahers of the genus "by "''""' -t -^ -> ^ - ^^ --t anterior obliquity ':■-- ^'"''^':: 

 moderate inflation. The surface may shovi very feebly concentric 

 striations. The Claiborne species nentioneci above, D, nana lea(l), 



(]). Oontr. Geol., p. 55, pi. 1, fi~. 26, 183?. 



