T350 SPATHA 



at the posterior end of the Hgament, there is a triangular 

 notch in the dorsal border of the nacreous area; impressions 

 of the adductor muscles large, well marked, irregularly oval ; 

 that of protractor pedis reniform, situated slightly behind and 

 at the base of that of the anterior adductor ; posterior adduc- 

 tor impression large, oval ; that of the posterior retractor small, 

 elongated-oval, separate from that of the posterior adductor 

 and situated immediately below the notch at the end of the 

 ligament ; nacre dark, dull plumbeous, tinged with green, more 

 intense towards the beak cavity ; scarcely iridescent posteriorly. 



Length (of type) 69, height 35.5, diam. 22 mm." (Walker). 



Type locality, -Kribi River, 17 miles from Efulen, Kamerun. 

 Spatha kamerunensis Wai^kkr, Nautilus, XXIV, 1910, p. 38, 



pi. Ill, figs. I, 2. — Ortmann, Ibid, p. 39. 



■'Ten specimens, in alcohol, of this very distinct species were 

 sent by Mr. George Schwab to the museum of the Univ. of 

 Mich. 



By reason of its sculptured surface, it evidently belongs to 

 the subgenus Aspatharia Bgt., as recognized by Simpson 

 (1900) and Germain (1909). 



In size, shape and in the peculiar sculpturing of the surface, 

 which requires the use of a lens to develop the detail, it is 

 easily distinguishable from both of the allied species." 



The following are unfigured and unidentified species : 

 Spatha pangallicensis Rochedrune, Bull. Soc. Phil., VI, 1882, 



P- ZZ- 



upper Senegal. 

 Spatha baikii H. x^dams, Proc. Zool. Soc. Lond., 1866, p. 447. 



Niger River. 

 Spatha anataria Jickeli. Faun. Suss. Moll. N. O. Af., 1874, 



p. 266. 

 Chambardia Bourguignat in Servain, 189 1. New name for 



the Egyptian Iridinidce. 



Chambardia boiirguignafi, C. locardiana, C. letournenxiana, 

 C. pharaonum, C. rhynchonella, C. rhynchoidea. Some of 

 these are credited to Bourguignat and some to Servain. I do 

 not know what they are. They are probably Moncetias. 



