PLATE XLIX. 



Fig. l.—Coscivod incus nvdulosuslsliiniu KnUirKcd 550 duimoters. Description, p. 259. 



Pig. 2.- CoscinodUca.^ mtnymatuii Ehrcnb. variety (?) Enlarged 3Tr> diiinietors. Description, p. ?r.:j. 



432 



