PLATE XV. 



Figures magnified 500 diameters. 



Fig. 1. NAVICULA LACRIMANS, A. S., Schm. At., 12, f. 59, 60, HI, Gulf 



of Mexico. 

 " -2. MULTICOSTATA, Grun., 1860, p. 524, .1, f. 13; Schin. 



At., 11, f. 14-20, Camp. Bay. 

 " '!. COARCTATA, A. S., Sohiu. At., 11, f. 30-32; 69, f. 11, 



Camp. Bay. 

 " 4. " EXEMPTA, A. S., Schm. At., 11, f. 28, 29: 69, f. 13, 4u, 



Camp. Bay. 

 " 5. PANDURA, Breb., D. C., p. 15, f. 4, T. M. S., 1856, p. 



43, 5, f. 11, Schm. At., 11, f. 1, 2, 4, 8, 9 (X. crabro 



var. \ Gulf of Mexico. 



" 6. PR1SCA, A. S., Schm. At., 12, f. 67-70, Richmond, Va. 



" 7. " CRABRO, Kg., S. B. D., II, p. 94; M. J., 1857, p. 8, 3, 



f. 11; Schm. At,, 69, f. 1. Sauta Monica. 



" 8. " GIEBELII, A. S., Schm. At,, 12, f. 73, Camp. Bay. 



" 9. CRABRONIFORMIS, Gruii., Schm. At., 11. f. 24; Gulf 



of Mexico. 

 " 10. PUELLA, A. S., Schm. At., 12, f. 13-15; 69, f. 25, 15, 



California. 

 " 11. " COARCTATA, A. S., comp., Fig. 3 above. 



12. CONFECTA, A. S., Schm. At.. 12, f. 46, Camp. Bay. 



" 13. " PRISI 'A, A. S., s^ame as Fig. 6, above. 



14. SPLENDIDA, var. Grey., T. M. S., 1856, p. 44, 5, f. 14, 



Schm. At,, 12, f. 31-35; 13, f. 31-34; 69, f. 22, Gulf 

 of Mexico, etc. 



15. DEMTA, A. S., Schm. At., 69, f. 34, Santa Monica. 

 Figs. lt>, is. PUELLA, A. S., same species as Fig. 10, above. 

 Fig. 17. DONKINII, A. S.,Schm. At., 12, f. 63, 64, Camp, bank 

 " 1!. CHERSONENSIS, Gruii., Schm. At., 12, f, 40; 69, f. 21. 



" 20. ORNATA, A. S., Schni. At., 69, f. 5, Monterey. 



