114 



BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



Plate 19. 



Fig. 1. Lagenaorbignyana. X 90. a, front view; b, apertural view. 



2. Lagena orbignyana, var. concentrica. X 90. a, front view; b, side view. 



3. Lagena truncata. X 45. a, front view; b, same by transmitted light; c, side 



view; d, apertural view. 



4. Lagena quadrata, var. rizzse. X 75. 



Plate 20. 



Fig. 1. Lagena orbignyana, var. lacunata. 



2. Lagena orbignyana, var. crenulata. 



3. Lagena orbignyana, var. coronata. 



X 150. a, front view; 6, apertural view. 

 X 150. «, front view; b, apertural view. 

 X 45. a, front view; b, side view. 



Plate 21. 



Fig. 1. Lagena fasciata, var. carinata. X 133. a, front view; b, apertural view. 



2. Lagena marginata, var. X 65. a, front view; b, apertural view. 



3. Lagena marginata, var. X 65. a, front view; b, side view. 



4. Lagena apiculata. X 45. a, front view; b, side view. 



Fig. 1. Lagena marginata. 



2. Lagena marginata. 



3. Lagena marginata. 



4. Lagena marginata. 



5. Lagena marginata. 



6. Lagena marginata. 



7. Lagena marginata. 



Plate 22. 



X 133. a, front view; 6, apertural view. 



X 133. a, front view; b, apertural view. 



X 133. Specimen by transmitted light. 



X 133. Specimen with broad keel. 



X 65. Specimen with keel resembling L. lagenoides. 



X 65. Specimen with narrow keel by transmitted light. 



X 65. Specimen showing irregularly striate surface. 



Plate 23. 



Fig. 1. Lagena orbignyana, var. alata. X 150. 



2. Lagena acuticosta. X 75. a, front view; b, apertural view. 



3. Marginulina glabra. X 40. a, front view; b, apertural view. 



4. Marginulina striatula. X 40. a, front view; b, side view; c, apertural view. 



5. Frondicularia bradyi. X 75. a, front view; 6, apertural view. 



Plate 24. 



Fig. 1. Nodosaria (Glandulina) laevigata. X 30. Specimen with twin spines at base. 



2. Nodosaria {Glandulina) laevigata. X 30. a, front view; b, view of aperture. 



3. Nodosaria mucronata. X 30. Outline. 



4. Nodosaria roemeri. X 65. a, front view; b, apertural view. 



5. Nodosaria roemeri. X 65. a, front view; b, apertural view. 



6. Nodosaria roemeri. X 65. Two-chambered stage. 



7. Nodosaria scalaris. X 40. a, front view; b, apertural view. 



Plate 25. 

 Fig. 1. Nodosaria inflexa. X 75. 



2. Nodosaria mucronata. X 40. a, front view; b, apertural view. 



3. Nodosaria catenulata. X 75. a, front view; b, same by transmitted light; c, 



apertural view. 



4. Nodosaria haueriana. X 75. a, front view; b, apertural view. 



5. Nodosaria obliqua. X 15. a, front view; b, apertural view. 



6. Nodosaria calomorpha. X 75. a, front view; b, outline of same by trans- 



mitted light; c, apertural view. 



7. Nodosaria pauperata. X 40. a, front view; b, apertural view. 



