74 FORAMINIFERA 



Genus LAGUNCULINA Rhumbler, 1903 



Plate 4, figure 10 



Genoholotype, Ovulina urnula Gruber 



Lagunculina Rhumbler, Arch. Prot., vol. 3, 1903, p. 248. 

 Ovulina Gruber, Nova Acta Acad. Leop., vol. 46, 1884, p. 497 (not 

 Ovulina Ehrenberg, 1855). 



Test free, a flask-shaped simple chamber; wall of fine sand 

 grains ; aperture circular, with a short neck and flaring lip. 

 Recent. Gulf of Genoa, shallow water. 



EXPLANATION OF PLATE 4 

 Saccamminidae 



Fig. 



1,2. Storthosphaera albida Schnltze. X 15. (After H. B. Brady). Fig. 

 1, Exterior. Fig. 2, Test laid open to show interior and struc- 

 ture of wall 



3-5. Saccammina sphaerica M. Sars. X 10. (After H. B. Brady). 

 Fig 3, Side view. Fig. 4, Apertural view. Fig. 5, Test laid 

 open to show interior and structure of wall. 

 6. Pr'oteonina fusiformis Williamson. (After type figure). 



7, 8. Proteonina testacea Flint. X 10. (After type figure). Fig. 7, 

 Exterior. Fig. 8, Section. 

 9. Lagenammhia lagmicula Rhumbler. (After type figure). 



10. Lagunculina urnula (Gruber). (After type figure). 



11. Marsupulina schultzei Rhumbler. X 50. (After type figure). 



12. Millettella pleurostomelloides (Millett). X 90. (After type fig- 



ure), a, apertural view; h, side view. 



13. Urnulina difflugiaeformis Gruber. (After type figure). 



14. Pseudarcella rhumhleri Spandel. X 65. (After type figure), a, 



side view; h, from below; c, vertical section. 



15. Ammo s^ihaero ides distoma Cushman. X 35. (After type figure). 



a, apertural view; b, from side. 

 16-18. Thurammina papillata H. B. Brady. (After type figures). Fig. 16, 



Exterior. X 35. Fig. 17, Test laid open to show interior. X 35. 



Fig. 18, Large specimen from exterior. X 20. 

 19-21. Pelosina variabilis H. B. Brady. (After type figures). Figs. 19, 



20. X 6. Fig. 21, Section of portion showing internal cavity. 

 22-24. Pelosivn rotundata H. B. Brady. X 15. (After type figures). 



Fig. 24, Transverse section. 



