EXPLANATION OF PLATE XIII. 



Fig. 75. Amphora exigua, n. sp. 



— 76. ... dubia, n. sp. 



— 77. ... truncata, n. sp. 



— 78 & 78 b, oblonga, n. sp. 



— 79. . . . robusta, n. sp., 79 b and 79 c ; half 



frustules. 



— 80. . . . spectabilis, n. sp. ; 80 b ; do. var. /3, 



80 c ; do. var. y ; 80 d ; do view 

 showing the complex structure of the 

 species ; 80 e ; do. detached segment. 



..Proteus, n. sp. 



81,816, 81 "I 

 c, 81 d, & > 

 81 e, J 



Fig 



82. 



Amphora lyrata, n. sp. 



— 



83. 





Milesiana, n. sp. 



— 



84. 





elongata, n. sp. 



— 



85. 





quadrata, n. sp. 



— 



86. 





excisa, n. sp. 



— 



87. 





nobilis. 



— 



88. 





Arcus, Greg. 



— 



89. 





Grevilliana, Greg 



— 



90. 





fasciata, n. sp. 



— 



91. 





complexa, n. sp. 



All the above are magnified 400 diameters. 



