- 2 - 
c'oyoi 
ia cavernosa (Forrsk.) Bor 
24659 ; 24665 * 
24724; 24735; 24332; 
Boodlea ccnrposita (Harv.) Brand 247lob; 24719* * The latter speci- 
men represents a lax form and bears much sterile Ceramium 
■U—r.i n . .1 - I 
gracillimum v. byssoidcum . 
Cladopnoropsis gracillimum Dawson 24753. These are in good agree¬ 
ment in structure, but are slightly coarser than either the 
Mexican type or material from Arno Atoll, Marshall Islands, and 
much coarser than Eniwetok material. The colony is quite com¬ 
pact and the filaments densely arranged in a rather erect fashion* 
The exceedingly long cells and thick, stratified walls are dis¬ 
tinctive. Number 24781 is still coarser, up to 140 y. in diam¬ 
eter in some places, although mostly about 125 Seme of the 
walls are up to 20 u thick. This would seem to be a particu¬ 
larly robust-form of this generally slender species. 
Cladophoropsis, sundanensis Reinbold 24715* This is very much like 
material from Palmyra Island, forming rounded, compact colonies 
as reported from there. The filaments are about the same size 
or tending to be slightly larger. 24826a, growing in a turf with 
Jania tenella , has filaments 70-100 u in diameter. 24747 is a 
very young colony compacted with L yngbya filaments. 24766 shows 
the characteristic nub-spherical clumps, but the cells are very 
long. 24820 has filaments 100-130 u in diameter. 24846 is a 
darker colored form with somewhat snorter cells than other ma¬ 
terial from this area. It may be a distinct entity, but points 
of distinction are not clear. 
Derbesia attenuata Dawson 24572a. Well developed, typical ma¬ 
terial, on TurbInaria . 
Caulerpa racemosa var. peltata (Lamx.) Eubank 24713; 24716; 
2475oa7 2^37; 2433171^45; 24361; 24864. 
Caulerpa racemosa var. turbinata (J. Ag.) Eubank 24784. 
Caulerpa serrulata (Forrsk.) J. Ag. emend. B6‘rg. 24751; 24756; 
~l$rf52; 24843. 
Caulerpa urvilleana Mont. var. 24840; 24842. 
Bryops ls pennata Lamx. 24731; 24743 (Cn Turbinaria ); 24322a; 
24837; 24850. Unilateral branching is especially prominent and 
consistent in this last collection. 
* 
The following identifications and notes on Codium are 
provided by Dr. Paul C. Silva, University of Illinois. 
Codium ovale Zanard. 24746; 24740. This latter collection is a 
mixture of two species growing in intimate association: C odium. 
. . ovale and a member of the C. arahicum complex. The known range 
of‘c7 ovale has now been extended beyond the typ e locality 
