FORAMINIFERA FROM THE NORTH ATLANTIC AND ARCTIC OCEANS. 339 
Species. 
Spirillum vivipara 
Genus Spirillina. 
Arctic. 
Plate NY. fig. 28. 
[Species. Patellina concava.] 
Variety. Patellina corrugata 
Genus Patellina. 
Plate XY. fig. 29. 
Genus Nummulixa. 
[Species. Nummulina perforata.] 
Subspecies. N. planulata Plate XIY. fig. 45. 
[ Variety. N. (Operculina) complanata.] 
Subvariety. N. (0.) ammonoides .... Plate XIY. fig. 44. 
Genus Polystomella. 
Species. Polystomella crispa Plate XIY. fig. 24. 
Variety. P. arctica Plate XIV. fig. 25-30. 
P. striatopunctata Plate XIY. figs. 31-34. 
P. (Nonionina) Faba Plate XIV. fig. 36. 
P. (N.) asterizans Plate XIY. fig. 35. 
Subvariety. P. (N.) depressula Plate XIY. fig. 39. 
P. (N.) stelligera Plate XIY. figs. 40, 41. 
P. (N.)Scapha Plate XIY. figs. 37, 38. 
P. (N.) umbilicatula .... Plate XIY. fig. 42. 
P. (N.) turgida ; 
[Species. Yalvulina triangularis.] 
Variety. Y. conica 
Genus Valvtjlina. 
Plate XY. fig. 27. 
[Species. 
Genus Liiuola. 
Lituola nautiloidea.] 
Variety. L. Canariensis Plate XY. fig. 45. 
L. globigeriniformis Plate XY. figs. 46, 47. 
L. Scorpiurus Plate XY. fig. 48. 
Species. 
Genus Trochaio£isa. 
Trocbammina squamata Elate XY. figs. 30, 31. 
Variety. T. gordialis Plate XY. fig. 32. 
Species. Cornuspira foliaeea 
Genus Coenuspira. 
Plate XY. fig. 33. 
Genus- Miliola. 
[Species. Miliola (Quinqueloculina) Seminulum] .... Plate XY. fig. 35. 
Variety. M. (Q.) agglutinans Plate XV. fig. 37. 
Q. Ferussacii Plate XY. fig. 36. 
Q. oblonga Plate XY. figs. 34, 41. 
Q. subrotunda Plate XY. fig. 38. 
Q. tenuis 
North Atlantic. 
Plate XVII. figs. 62, 63. 
Plate XVII. fig. 61. 
Plate XVII. fig. 60. 
Plate XVII. fig. 54. 
Plate XVII. figs. 55, 56. 
Plate XVII.' figs. 58, 59. 
Plate XVII. fig. 57. 
Plate XVII. figs. 92-95. 
Plate XVII. figs. 96-98, 
Plate XVII. fig. 87. 
Plate XVII. figs. 85, 86. 
Plate XVII. fig. 84. 
