70 THE NAUTILUS. 



C. MILIARIS Gmel. var. BREVIS var. nov. 



Shell shorter, covered on the dorsal surface with larger spots, teeth 

 finer, aperture narrower than the type. Long, i^, lat. inch. 

 Habitat, Japan. ? Type in the writer's collection. 



C. MILIARIS Gmel. var. INTERMEDIA var. nov. 



Aperture like the type, sides correspondingly pitted, dorsal surface 

 suffused with white, yellow ground and spots showing through in the 

 center, similar in shape to C- eburnea. Long. 1|, lat. 1^ inch. 

 Habitat unknown. This form connects eburnea Barnes with miliaris 

 Gmel. Type in the writer's collection. 



C. MILIARIS Gmel. var. EBURNEA Barnes. 



C. eburnea Barnes. Ann. Lye. N. H. I., p. 133, 1824. C. lactea 

 Wood, 1838. 



With the material on hand I believe that I am justified in reduc- 

 ing this well-known Cyprxa to varietal rank. It is surprising that, 

 at this late date, evidence should turn up to prove eburnea to be only 

 a variety of miliaris. The intermediate form, already described, 

 does so conclusively. Both occur in the Philippines. Roberts 

 places eburnea alter miliaris in the Manual, but writes that it " dif- 

 fers from lamarcki Gray in being pure ivory-white." To my mind 

 it only resembles it in the size of the teeth. The aperture of lamarcki 

 is often much narrower below. 



NOTES. 



MR. FRANK C. BAKER, Curator of the Chicago Academy of Sci- 

 ences, is spending the month of September in northern Idaho, and 

 expects to visit Oregon, Washington and Vancouver before returning. 



DR. ARNOLD E. ORTMANN reports success in collecting Unionidse 

 in the North Fork of the Holston, Clinch, Powell and Upper 

 Cumberland rivers. He is now at Knoxville, and writes : l< I have 

 secured a tremendous material of Najades, and shall be able, from 

 the study of the anatomy, to straighten out the systematic position 

 of many species. Lea's work on the Najodes of this region is poor 

 below criticism. He described individuals, but not species, but, 



