46 University of Michigan 



measured, the unilnlicus of the latter is considerably smaller, 

 around 1/5 the major diameter, although that of a very much 

 elevated specimen from "New Granada" (A. X. S. P. 12950) 

 is about 2/9. Von ]\Iartens (1873) has called attention to the 

 intergradation in shape between P. inca and P. popayana. He 

 has also pointed out that actual specimens of C. blanchetianuni, 

 obtained through Moricand, are more depressed than P. inca, 

 instead of more elevated, as would appear from Aloricand's 

 figure (see the preceding key). Specimens in the A. N. S. P. 

 (no. 12968, Brazil, from ]\Ioricand) agree with Von Martens' 

 statement. To be perfectly candid, the difference in locality 

 is about the only remaining excuse for the specific separation 

 of the forms from the Brazilian region and those from the 

 Colombian. 



Besides those already mentioned, measurements of sets in 

 the A. N. S. P. from Cucuta, Colombia (L 8, y^))' Mendez, 

 Colombia fL 10, 75), and Puerto Cabello. Venezuela, are in- 

 cluded in the table of dimensions. The extremes of variation 

 in the major diameter index are especially noteworthy. Ko- 

 belt-Schwanheim (1912), in the description of Potcria popa\- 

 ana fasciafa, has called attention to the color variation in 

 "Puerto Cabello" specimens, but apparently his series did not 

 show as much variation in shape as the set in the Acad, of 

 Nat. Sci. of Philadelphia. It is interesting, at least, tbat the 

 larger forms, of the coufusa-hcUi-fischcri-gigantea series, show 

 similar differences in shape (see key). 



DiPLOMMATINIXAE 



Adclopoma occidcntalc (Guppy, 1872). 



Very abundant; at Quebrada La Fria, in rich leaf mould 

 on an abandoned cacao plantation, that has returned ("mon- 



