﻿86 BULLETIN 103, UNITED STATES NATIONAL MUSEUM. 



Plate 23. 



Fig. 1. Discorhis obtusa (d'Orbigny). a, dorsal view; &, ventral view; c, pe- 

 ripheral view. X 65. 



2. TruncatuUna americana, new species, a, dorsal view ; b, ventral view ; 



c, peripheral view. X 65. 



3. TruncatuUna pygmea Hantken. a. dorsal view; b, ventral view; c, pe- 



ripheral view. X 65. 



Plate 24. 



Fig. 1. TruncatuUna ungeriana (d'Orbigny.) X 65. 



2. TruncatuUna cf. T. pygmea Hantken. X 33. 



3. TruncatuUna icueUcrstorfi (Schwager). X 50. 



4. TruncatuUna culebrensis, new species. X 33, a, dorsal view ; b, pe- 



ripheral view. 



5. Siphonina reticulata (Czjzek). X 65. 



6. PulvintiUna sagra (d'Orbigny). X 65. a, dorsal view; b, ventral view. 



Plate 25. 



Fig. 1. PulvinuUna concentrica Parker and Jones. X 35. 



2. PulvinuUna menardii (d'Orbigny). X 65. 



3. PulvinuUna menardii (d'Orbigny). X 65. 



4. PulvinuUna, species ? X 65. 



5. Nonionina depressula (Walker and .Jacob). X 65. a, side view; b, 



apertural view. 



6. Nonionina scaplia (Fichtel and Moll). X 65. «, side view; 6, aper- 



tural view. 



Plate 26. 



Fig. 1. Nonionina. panamensis, new species. X 65. a, side view; b. apertural 

 view. 



2. Nonionina anomalina, new species. X 65. o, side view; b, apertural 



view. 



3. Polystomella striato-punctata (Fichtel and Moll). X 65. a, side view; 



ft, apertural view. 



4. Polystomella striato-punctata (Fichtel and Moll). X 65. a, side view; 



&, apertural view. 



5. Polystomella sagra d'Orbigny. X 65. a, side view; b, apertural view. 



Plate 27. 



Fig. 1. Polystomella macell a • (Fichtel and Moll). X 65. a, side view; b, aper- 

 tural view. 



2. Polystomella crispa (Linnaeus). X 35. a, side view; b, apertural view. 



3. Polystomella craticulata (Fichtel and Moll). X 50. a, side view; 6, 



apertural view. 



4. Quinqueloculina seminulum (Linnaeus). X 65. a, rear view; b, aper- 



tural view. 



