kh. J. HARVEY-GIBSON—REPORT ON THE ALG. 79 
21. Dicryora picHoroma, J. Ag. 
Tella Tella Kebira. 
22. SPHACELARIA RIGIDA, Miitz. 
An epiphyte on several Sargassa. 
23. HEcrocarpus sinicuLosus, J. Ag. 
Suez Bay, Suakim. 
24. CASTAGNEA VIRESCENS, Thur. 
Suez Bay. Suakim. 
RHODOPHYCE I. 
25. LAURENCIA PINNATIFIDA, J. Ag. 
Suez Bay. Recorded by Portier from Hodeida. 
26. LAURENCIA DIVARICATA, J. Ag. 
Suez Bay. Recorded by Zanardini from Suez, and by Hauck from 
Madagascar and the Somaliland Coast. 
27. LAURENCIA PAPILLOSA, (rev. 
Suakim. Recorded also by Piccone from Massaua and the Assab Archi- 
pelago and by Hauck from the Somaliland Coast, and by Zanardini from 
Suez, Tor, Djedda, &e. 
28. GELIDIUM RIGIDUM, (rev. 
Trinkikat. Recorded from the Red Sea by Zanardini, from Massaua and 
the Assab Archipelago by Piccone, and by Hauck from the Zanzibar Coast. 
29. GELIDIUM coRNEUM, iit. 
A form of this species occurs among the collection obtained at Trinkitat, 
which appears to be near Piccone’s var. ambiguum. 
30. PoLYZONIA JUNGERMANNIOIDES, J. Ag. 
On Sargassum dentifoliwm, but fragmentary. 
31. Hyprma VALENTIA, J. Ag. 
Trinkitat and Suez Bay. 
32. SPYRIDIA FILAMENTOSA, J. Ag. 
Suez Bay. Recorded also by Zanardini from the same locality, and also 
from Akaba and Kosseir. 
