8 CKISIID^. 



14. Crisia patagonica, D'Orb. 



"Cells from 9-19, straight, very distinct; branches arising from 

 second or tliird cell ; sometimes two from an internode, when the 

 second arises from the sixth cell. Joints black.'' 



Crisia patagonica, D'Orb. ^oy. Amer. Merid. Polypiers, p. 7, pi. 1. 

 figs. 1-3. 



Hab. Patagonia. 



15. Crisia sinensis, D'Orb. 



" Allied to C denticulata, but with longer and more regular 

 segments, and the cells far more closely aggregated and more 

 numerous." 



Crisia sinensis, D'Orb. Pal. Frang. p. 599. 

 ? Crisia elongata, M.-Edw. 



Hah. Hongting. 



IG. Crisia martinicensis, D'Orb. 

 " Branches very straight, slender, elongated; cells widely remote." 



Crisia martinicensis, D'Orb. Pal. Frang. p. 599. 

 Hab. Martini(iue. 



17. Crisia californica, D'Orb. 



"Allied to C. dentata [_slc], but with the segments much longer, 

 thicker, and wider, the cells closely aggregated and slightly promi- 

 nent. Ovicell smooth, placed on the side of a segment." 



Crisia californica, D'OrJ>. Pal. Frang. p. 599 (1852). 

 ? Crisia denticulata. 



Hab. Lower California. 



18. Crisia punctata, D'Orb. 



" Segments irregular, remarkable for tlie great prominence of the 

 cells and their punctation." 



Crisia punctata, D'Orb. I. c. p. GOO. 

 ? = Crisia sinclarensis. 



Hub. He de Veuado, iler Vermeille, California. 



19. Crisia attenuata, Heller. 



" Branches slender, thin, smooth ; cells long, cylindrical, straight, 

 connate throughout, alternate ; aperture round, scarcely projecting, 

 looking outwards ; internodes attenuated at the base ' 



