354 
PACIFIC SCIENCE, VoL XX, July 1966 
Pr., Palawan I., Taytay, Merrill 9141, Puerto 
Princesa, McGregor, x 25, Balabac L, Abbott, 
1 iii 57 (bish). Sulu Pr., Tapul Group, Siasi 
I., Abbott, 28 i 57 (bish), Laminusa I., Abbott, 
29 i 57 (bish), Tawitawi Group, Tawitawi I., 
Abbott, 30 i 57 (bish), Sibutu I., Abbott, 17 
ii 57 (bish), Turtle Islands, Taganak L, Ab- 
bott, 23 ii 57 (bish), Sitankai Reef, Yates 
56229, x 19. Marianas islands. Guam I., 
Radin, viii 45. malaya. Singapore, Holttum, 
1928-30. Indonesia. Sunda Strait, Teysman. 
Java: Djkarta, Hoorn I., Setchell JH580, v 29, 
Panganan, Setchell BP 54, 17 vi 29. Bali: 
Boeleleng, Pullai 382c, vii 33, Sanoer, Setchell 
BS143, 7 vi 29, Kampoengan, Setchell BK8, 9, 
641, 651a, 1 vi 29, Panganan, Setchell BP 54, 
17 vi 29. 
Halimeda tuna (E. and S.) Lamour., v. tuna 
Philippines. Batanes Pr., Batan I., Ramos 
80122 , vi-vii 30. Indonesia. Bali: Oie Yong 
Seng B191, 1929-30. 
v. platydisca (Dec.) Bart. — Indonesia. 
Boeleleng, Pullai BB382, vii 33, Setchell BB102, 
19 vi 29, Kampoengan, Setchell BK649, vi 29. 
Halimeda velasquezii Taylor 
Philippines. Luzon I.: Cagayan Pr., Sta. 
Ana, Velasquez 2379, 17 vi 50. 
C odium Stackhouse, 1797 
Codiums of Indonesia have been published 
upon by the Gepps (1911) and those of the 
Philippines by Gilbert (1947, 1961). Since Dr. 
P. C. Silva may be expected to review them in 
due time in monographic fashion together with 
other western Pacific specimens, probably with 
considerable change in species delimitation, no 
further treatment is appropriate at this time. 
The Gepps recognized 6 species from the Indo- 
nesian area and the Sulu Archipelago; Gilbert 
(1961) recognized 12 from the Philippines, in- 
cluding all the Indonesian species except the 
very small Borneo Bank species, C. petaloideum 
A. & E.S. Gepp. 
PHAEOPHYCEAE 
To judge by the Siboga expedition reports 
this group, with the exception of a very few 
genera, is ill- represented in the area from which 
the materials available to me have come. It 
seems very improbable that the representation is 
adequate, though in truth the variety of Phaeo- 
phyceae is not great in the tropics, but it is 
probably as complete as that of the other major 
groups. In the present case the genus Sargassum, 
which appears to be best represented in the col- 
lections, has been put aside for lack of authen- 
tic material for comparison. A special study has 
been made of the genus Turhinaria (Taylor, 
1964, 1966), and its distribution recorded in a 
far more detailed way than would have been 
possible here. The genus Padina, also frequently 
encountered, was studied several years ago by 
Dr. Francesca Thivy, and the writer hesitates 
to draw heavily on her unpublished dissertation, 
though many of her determinations are in- 
corporated. Delicate forms like Ectocarpus were 
commonly too ill-preserved for determination, 
and in general small types were entirely un- 
represented in the collections. 
DICTYOTALES 
DICTYOTACEAE 
Dictyota Lamouroux, 1809 
Materials of Dictyota from this area are rela- 
tively scanty, and often seem dwarfed; in any 
case they do not fall readily into distinct species 
groups. Plants of the genus are often variable 
in form, and require great care in the field to 
search out fully developed specimens. One may 
assume something less than adequacy in this 
respect, since Setchell is the only fully qualified 
phycologist whose collections are largely rep- 
resented (and even so, chiefly by native assis- 
tants) in this report. It is remarkable that this 
Pacific area does not appear to have developed 
any particularly distinctive species of Dictyota. 
Dictyota bartayresii Lamour. 
Philippines. Mindoro I.: Mindoro Oriental 
Pr., Puerto Galera, Santos 563 ( prox .), 31 xii 
36. Palawan Pr., Balabac L, Calendorang Bay, 
(apices acute and perhaps a distinct entity), 
Abbott, 1 iii 57 (bish), Gnat Reef (apices 
obtuse), Abbott, 4 iii 57 (bish). Sulu Pr., 
Turtle Islands, Abbott, 23 ii 57 (bish). 
Dictyota cervicornis Kiitz. 
Philippines. Palawan Pr., Balabac I., Abbott, 
2 ii 57 (bish). 
