- S67 - 



Pam i 1 5' Jul i i d ^ e . 

 Genus JULIA Gould. 



^ A 



JULIA GA.JKSRAE n. sp, 



Desortptio-'. .- ..hell small, t r.^nsverselj- elongated, \7ell- 

 inflated; dorsal margin arouate; roujided r- " iorlj?, base sloping 

 toward the posterior end; rmho prominent, placed at the anterior 

 end, strongly hent doTrn~-; rd over the xiciiro.;, 'deeply impressed limiile 

 the margin oelow the Innule sloping do\'7nv/ard to the prominently 

 procliif^ed antero-ventral angle; anteriorly with a suh-roimderl ridge 

 curving from the umhc to the produced angle, the area het^veen the 

 ridge, and the margin flattened; exterior s:irface smooth, escept 

 for irregular incrementals ; hin^re e'^'entulou;: ; on the right valve 

 the inner edse of the luxiule flattened and extended the martrin he- 

 low the lunule orodixce'' outward by '''he thickene' ventral edge of the 

 lunii-le; on the left valve the inner edj?e of the lunule thickened . 

 Di-.ensions .- Lat., 8 ram.; alt., 6," i-x:» ; semicHam., 2.2 m;::. 

 Remarks .- A number of valves, of v/hich t-o are ?dult, of this 

 interestiiiir sToecieQ are at hand. The genus is at the present time 

 confine"! to the ludo-x'acif ic region. One species haf. ' r. describ- 

 ed from the American Tertiary deposits, the Ohipola J. floridar.a 

 Dall (1); it is less elongate, smaller, v;ith more flattener! and 



