NO. 6 CUSHMAN, MCCULLOCH : LAGENIDAE 307 



EXPLANATION OF PLATE 40 



Figs. 



1-5. Planularia planulata (Galloway and Wissler). X 65, p. 303. 



6-8. Marginulina glabra d'Orbigny. 6, X 37. 7, 8, X 33, p. 308. 



9-11. Marginulina hancocki Cushman and McCulloch, n. sp. X 14. 

 9, Holotype. 10, 11, Paratypes, p. 309. 



12. Marginulina bacheii Bailey. X 37. a, side view; b, apertural 

 view, p. 309. 



13-15. Dentalina suhsoluta (Cushman). 13, 14, X 37. 15, X 9, p. 315. 



16. Dentalina consobrina d'Orbigny, var. emaciata Reuss. X 14, 

 p. 310. 



17. Dentalina filformis (d'Orbigny). X 14, p. 314. 



