SPATHA 1329 



most straight, quite deeply incurved in the middle ; anterior 

 margin elongate, rounded ; posterior margin produced in a 

 long, subacute beak ; ligaiuent long ; anterior muscular impres- 

 sion deeply impressed, long elliptical ; posterior ovate, lacri- 

 niaeform ; nacre pale rose-color, bluish on the margin and shin- 

 ing. 



Length 85, height 38, diam. 24 mm." (R. and G.) 



Type locality. Lake Rodolphe. 

 Spathella ho::asi Rociiei'.RUNE and Germain, Bull. Mus. Hist. 



Nat., 1904, p. 144. 

 Leptospatha bozasi Rochebrune and Germain, Mem. Soc. 



Zool. Fr., XVn, 1904, p. 26, pi. II, fig. 7. 



"It is to Spathella hloyeii Bgt., that this form appears to 

 approach the nearest ; it differs, however, by its markedly 

 greater elongation, by the more produced anterior region, by 

 the more pronounced median curve of the ventral margin, by 

 the longer curve of the dorsal margin, by the much longer, 

 brown, less prominent ligament and, finally, by the different 

 color." 



Spatha brumpti (Rochebrune and Germain). 



"Shell oblong ovate, compressed, inequilateral, solid, rather 

 heavy, yellowish-brown, shining; lines of growth broad, dis- 

 tant, in front and, especially behind, broadly laminose ; um- 

 bones eroded, rather prominent, subinflexed, contiguous ; dor- 

 sal margin almost straight ; ventral convex, slightly undulated ; 

 anterior end ovate ; posterior end dilated, produced in a sub- 

 compressed, and slightly decurved beak ; ligament long and 

 rather prominent ; anterior muscular impression biplex, trap- 

 ezoidal, the anterior alone deeply impressed; posterior sub- 

 quadrate ; within dirty rose-color, cretaceous, scarcely shining. 



Length 80, height 42, diam. 25 mm." (R. and G.) 



Type locality. The Omo, opposite the Makoua Mountains. 

 Spathella bntmpti Rochebrune and Germain, Bull. Mus. 



Hist. Nat, 1904, p. 144. 

 LeptospatJia hnimpti Rochebrune and Germain, Mem. Soc. 



Zool. Fr., XVn, p. 26, pi. II, fig. 6. 



