NO. 1 TAYLOR: PACIFIC MARINE ALGAE 271 



the nodal band. These details of cortication distinguish it from the species 

 mentioned above, from C. rubriforme Kylin, and from C. Areschougii 

 Kylin, north Atlantic species in which the internodal cortication is less 

 complete and more irregular. On the west coast C. Eatonianinn (Farlow) 

 DeToni has a somewhat similar cortication, but a more uniform one, that 

 about the node being less distinct from that over the internode than in 

 ours, the internodal rows even more distinct, but the nodal bands in the 

 young plants less clearly delimited. The habit of the two is unmistakable, 

 for the unequal dichotomy produces a pyramidal habit in C. Eatonianum, 

 which differs also in its blackish color. The west coast C. codicola J. 

 Agardh is a much small plant, of specialized habitat, and with irregular 

 arrangement of the corticating cells. 



Ecuador: Archipielago de Colon, entangled with coarser algae as 

 dredged from 27 meters' depth off Post Office Bay, I. Santa Maria, no. 

 34-298, p. p., 9 Jan. 1934. Ibid., in fair quantity as dredged from 37- 

 55 meters' depth off a sandy bottom near an islet in Gardner Bay, I. 

 Espanola, no. 34-407 (TYPE), 31 Jan. 1934. 



Ceramium Eatonianum (Farlow) DeToni 



Farlow 1875, p. 373 (as Centroceras Eatonianum) ; DeToni 1903, 

 p. 1493. 



Mexico: Baja California, with numerous other species of algae in 

 mosslike turfs on intertidal rocks at South Bay, I. Cerros, no. 34-648, 

 10 Mar. 1934. 



Ceramium byssoideum Harvey 



Taylor 1928, p. 190, pi. 27, figs. 20, 21 ; Setchell & Gardner 1930c, 

 p. 170, pi. 7, figs. 23, 24 (as C. transversale) . 



Ecuador: Archipielago de Colon, forming a fine mat on rocks, I. 

 Wenman, no. 34-90 (tetrasporangial), 11 Jan. 1934. 



Ceramium fastigiatum Harvey, prox. 



Taylor 1938, p. 333, pi. 47, figs. 3-5 ; pi. 48, figs. 2, 4; pi. 49, figs. 3, 

 4; pi. 51, fig. 7. 



Mexico : Guerrero, with other small forms scraped from rocks, Ba. 

 Petatlan, no. 34-581 (tetrasporangial), 2 Mar. 1934. Ibid., in consider- 

 able amount on barnacles. White Friars Is., no. 39-627 (tetrasporangial), 

 7 May 1939. Ecuador: Guayas, from tide pools at Pta. Santa Elena, 

 Schmitt no. 515-33 (det. with reservations by H. E. Petersen), 17 Sept. 

 1926. 



