PLATE XLIV. 



Figures magnified 500 diameters. 



Figs. 1, 2. NITZSCHIA PLANA, S. B. D., 15, f. 114; Sin. Sp. T., No. 363, V. 



H., 58, f. 10. 11. 

 3, 1, (it). PANPURIFORMIS, Greg., D. C., p. 57, 6, f. 102; V. 



H., 58, f. 1-3. 

 " 5, 6, (11). BUBIA, S. B. D., PL 13, 14 t f. 112; V. H., 59, f. 9-12; 



Sm. Sp. T., No. 341. 

 Fig. 7. CIRCTJMSUTA, Gran., Cleve., 1880, p. 77; V. H.,ii. 



S. Tryblionella circumsuta, Ralfs. 

 " 8. LEVIDENSIS, W, S., V. H., 57, f. 15-17; 59, f. 7, = 



Tryblionella levidensis, granulata. 

 !>. Compare Figs. 3, 4. 



10. OOAROTATA, Grim., V. H., 59, f. 4. Punctse should 



be coarser, == Tryblionella, var. coarctata. 



11. DUBIA, Compare Figs. 5, 6. 



Figs. 12, 13. HUNGARICA, Grun., 1862, p. 568, 12, f. 31; V. H., 



58, f. 19-22; Sm. Sp. T., No. 347. 

 14, 15. VIVAX, S. B. D., 31, f. 267; V. H., 62, f. 1, 2; = 



Nit. amphionys, var. 



16, 17. MARINA, Grun., V. H., 57, f. 26, 27. 



is, 19. ANGUSTATA, Greg., Cleve., 1880, p. 70; V. H., 57, 



t. 22, 24; == Tryblionella angustata; S. B. D., 

 30, f. 262. 

 " 20, 21, 22. PUNCTATA. S. B. D., 10, f. 76; 30, f. 261; B. J. N. 



H., p. 344, 2, f. 76 = Tryblionella punctata. 



Fiii'. _':;. TRYBLIONELLA, Hantz, V. H., 57, f. 9, 10; prob- 



ably the same as Tryblionella gracilis ; W. S. 



" 24. SCUTELLUM, S. B. D., 10, f. 74; M. D., 13, f. 30; 



(markings rather too distinct) = Tryblionella. 

 scutellmn ; W. S., the same as T. circumsuta; 

 V. H., and called by Bailey Surirella circum- 

 suta. 



