Plate XVI. 
Fig. 1.—Docidium nodosum, var. mammillata, Borge, n. var., x 740. 
Fig. 2, 3.—Docidium nodosum, forma, Borge, x 740. 
Fig. 4.—Docidium basiundatum, forma, Borge, x 390. 
Fig. 5.—Docidium subundulatum, Borge, n. sp., x 270, 
Fig. 6.—Docidium burmense, forma, Borge, x 270. 
Fig. 7a, 7b.—Cosmarium angustatum, forma, Borge, x 740. 
Fig. &.—Docidium australianum, Borge, n. sp., x 270. 
Fig. 9.—Docidium australianum, forma, Borge, x 270. 
Fig. 10.—Docidium elegans, Borge, n. sp., x 390, 
Fig. 11.—Docidium gracile, Wittr., x 390. 
Fig. 12. —Docidium nodosum, forma, Borge, x 740. 
Fig. 13, 14.—Docidium cylindricum, forma (?), Borge, x 390. 
