NO. 1 TAYLOR : PACIFIC MARINE ALGAE 125 



ENTOPHYSALIS Kutzing, 1843 

 Entophysalis granulosa Kutzing 



Tildenl910, p.24,pL l,fig. 33. 



Growing in greenish or brownish pannose and cushion-shaped strata 

 on rocks wet by sea spray, and on rocks and shells in shallow water. The 

 plant consists of cells arranged in vertical rows, the cells near the surface 

 sooner or later becoming much divided internally, the daughter cells 

 remaining within the wall of the mother cell for some time. Pulvinate 

 masses of this species have been described under the name Placoma vesicu- 

 losa Schousb. 



Costa Rica : abundant on the rocks along shore, and on turret shells, 

 Port Parker, near Ba. Salinas, nos. 39-81, and 39-88, 24 Mar. 1939. 

 Ecuador : on lava in an isolated brackish lagoon cut off from the sea by 

 a wide stretch of volcanic rock, Pta. Albemarle, I. Isabela, no. 34-95, 12 

 Jan. 1934. 



Ghamaesiphonaceae 



H YELL A Bornet & Flahault, 1888 

 Hyella caespitosa Bornet & Flahault 



Tilden 1910, p. 51, pi. 3, figs. 9-11 ; Taylor 1928, p. 42, pi. 1, fig. 10; 

 Fremy 1939, p. 9. 



Plant a brownish- or yellowish-green stratum on shells in shallow sea 

 water, the branching filaments penetrating the outer layer of the shell, 

 the cells separated from each other by gelatinous material. The larger 

 cells near and on the surface of the shell each divide into numerous 

 smaller cells, which remain for some time enclosed in the gelatinous wall 

 of the mother cell. 



Panama : in old corals, depth 3 dm at low water, 1. Taboga, Bahia 

 de Panama, no. 39-622, 2 May 1939. 



DERMOGARPA Crouan, 1858 

 Dermocarpa Schousboei (Thuret) Bornet 



Tilden 1910, p. 50, pi. 3, fig. 7, as Xenococcus Schousboei; Taylor 

 1928, p. 42, pi. 1, fig. 6, as Xenococcus Schousboei. 



Plants spherical ovoid pyriform, epiphytic on other marine algae, up 

 to 12 /t long, one or two celled, the cell contents dividing into two or 

 more rounded or angular cells which remain for some time within the 

 wall of the mother cell. 



Mexico: Baja California, on Lyngbya semiplena etc., from wharf 

 pilings, fishing settlement on the southeastern side of I. Cerros, no. 39-2, 

 14 Mar. 1939. 



