Jour. Acad. Nat, S ci. 2 -^ S er. Yol .7111. , 



Pi. 13. 



:j6 



35 C/ruo curvcUils 



36 ( ^nzf) a/r>pl"S. 



37 (b/io ca^-olidus. 



Sinclair & Son,ii>h.?liila . 



