178 CRTPTOGAMIA. 



VALPARAISO. 



ACTINOPTYCHUS TERNARIUS, EJlT. 

 COCCONEIS SCUTELLUM, Ehr. 

 DlCTTOCHA SPECULUM, EllT. 



Gaillionella sulcata, Ehr. 

 Grammatophora hamata, Ehr. 

 Stauroptera aspera, Ehr. 



PHILIPPINE ISLANDS. 



* Amphitetras favosa, Bail. & Harv. (Tab. 9.) 



A. loricis tabularibus? lateribus vix concavis, primaria? ; secundaria 

 quadrangula, angulis fere rectis vix productis, superficie cellulis magnis 

 hexagonis tessellata. 



Hab. In mud, adhering to a Hammer oyster, from Mindanao. 



Only the terminal faces of this beautiful form have yet been seen ; 

 but these are sufficient to distinguish it from all known species of 

 Amphitetras, by the peculiar hexagonal markings, resembling those of 

 Triceratium Favus, Ehr. 



Amphora Ltbica, Ehr. 



Biddulphia ? pulchella, Gray. 



A form agreeing closely with Biddulphia pulchella, but having the 

 central spines characterizing Ehrenberg's genus Denticella, is common 

 at Mindanao, and at many of the Pacific Islands. 



* Campylodiscus KiiTZiNGii, Bail. & Harv. (Tab. 9, fig. 20.) 



C. sellceformis, late marginatus,sulcis sub-50 transversis continuis curvatis 

 impressus. 



Hab. Mindanao. 



Lorica saddle-shaped, marked with about fifty transverse and curved 

 furrows, which are nearly obsolete in the middle. It resembles O. 

 radians, of Ehrenberg; but the furrows in our species are more 

 regular, and pass completely across the shell. 



