1328 SPATHA 



Spathella spathiiUfonnis Bourguignat, Moll. Af. Eq., 1889, 



p. 199, fig. 

 Spatha 7vahlhergi spatulifonnis von Marten.s, Beschalte, 1897, 



p. 248, pi. VII. fig. 18. 

 Leptospatha spathuliformis Rochebrune and Germain, Mem. 



Exp. et Gen., (5), I, 1909, p. 57. 

 Spatha (Leptospatha) spathuliformis Germain, Arch. Zool. 



Exp. et Gen., (5), 1909, p. 57. 

 Spathella hloyeti Bourguignat, Moll. Af, Eq., 1889, p. 198, pi. 



VIII, fig. 3. 

 Spatha hloyeti von Martens, Besch., 1897, p. 249. 



Germain, (1. c), considers this form entitled to specific rank, 

 and (1. c, 1909), distinguishes spathulifonnis specifically from 

 boiirgiiignati. 



Var. dorsalis von Martens. 



"The beaks are further forward, being situated at 2-7 to 1-4 

 of the length, consequently the posterior margin is longer ; the 

 distance from the beaks to the end of the hinge is nearly or in 

 some examples quite equal to one-half of the length of the 

 entire shell. Impressions of the umbonal muscles only slightly 

 lengthened. 



Length 136, height 67, diam. 41 mm. 



Length 127, height 63.5. diam. 33 mm. 



Length 85. height 42, diam. 21 mm." (von Martens). 



Type locality, Hindi and Myesse, both in Ugogo and the 

 Zambezi River. 

 Spatha wahlhcrgi var. dorsalis von Martens, Besch., 1897, p. 



247. — Germain, Arch. Zool. Exp. et Gen., (5), I, 1909, p. 



56. 



As Germain, (1. c). considers this form worthy of varietal 

 rank, I give the original description. 



Sfatha cozasi (Rochebrune and Germain). 



"Shell transversely elongate oblong, inequilateral, subsolid, 

 pale olivaceous-brown, with regular lines of growth, which be- 

 come lamellose below ; umbones minute, slightly eroded, con- 

 tiguous ; dorsal margin somewhat curved ; ventral margin al- 



