. Bulletin . DIAGRAMS ILLUSTRATING DESCRIPTIVE TERMS THE HELIOTVPE PRINTING CO., BOSTON PLATE II. 77 PLATE II. CRETACEOUS FORAMLNIFERA. Page. Figs. la,lb. Haplophkagmium concavum Bagg (x 48) 37 Fig. 2. Verneuilina triquetra (V. Munster) (x 14) 30 Fig. 3. Bolivina punctata dOrb (x 142) 33 Figs. 5a, 5b. Vitrewebbina sollasi Chapman (x 3) 35 Figs. 4a, 4b. Vitrewebbina l^vis (Sollas) (x 3) 36 Figs. 4a, 5b (bottom forms). Frondicularia ovata Roemer (x 5) 49 Fig. 4b (bottom form). Frondicularia alata dOrb (x 9) 46 78 GEOLOGICAL SURVEY BULLETIN NO. 88. PL. II. la

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