PLATE XCII. 



Figures magnified 500 diameters. 



Fig. 1. ACTINOPTYCHUS HELIOPELTA, Grunow, lower plate; Sdun. 



At., 109, f. 2; V. H., 123, f. 3. Maryland. 

 Edtre-wise the disc is undulating. 



" 2. PFITZERI, Griind.; Schni. At., 29, f. 1. Cal. 



Figs. 3. (7). GRUENDLERI, A. S. ; St. Monica and Mon- 



terey. Schm. At., 1, f. 122; 100, f. 4. 

 4. o, 6. UNDULATUS, Ehrb. ; Monterey. Schm. At., 



1, f. R; V. H., 122, f. 3. 

 Fig. 8. EXCELLENS, Schuin., 1867, p. 64; Schm. At., 



1, f. 14. 

 " 9. SPLENDENS, Schad.; V. H., 119, f. 1, 2, 4. 



10. var. crucifera ; Cal., St. Monica. 



V. H., 120, f. 2. 



11. SPLENDENS, var. Californica ; Schm. At., 1, f. 



26; V. H., 120, f. 1. 



1-. SPLENDENS, var. Halionyx; V. H., 119, f. 3. 



13. TRIANGULUS, A. S.; Piscatavvay, Me. Prob- 



ably Trio. Marylandicum ; Schm. At., 1, 

 f. 26. 



