I III. A.LGAE OF BERMUDA. 1 i 



CULOROGLOEA Wille. 



C. tuberculosa (Hansg.) Wille, 1900, p. 5, PI. I, figs. I 6; Pal- 

 mella ? tuberculosa Hansgirg, 1892, p. 240, PI. VI, fig. 9. On Bostry- 

 chia, Catenella etc., in company with other minute Myxophyeeae. 



Family CHAMAESIPHONACEAE. 



Pleurocapsa Thuret. 



P. conferta (Kiitz.) Setchell, 1912, p. 229; Palmella conferta 

 Kiitzing, 1845, p. 149; 1845-1849, p. 12, PI. XVI, fig. IV. On 

 Rhodochorton spcluncarum, in cave, Agar's Island, Aug.; on Gelidium 

 pusillum, Harrington Sound, April, Collins. 



Hyella Bornet & Flahault. 



H. caespitosa Bornet & Flahault, 1888a, p. 162; 1889,>p. CLXV, 

 PI. X, figs. 7-8, PI. XL In dead shells, in company with (iomoutui, 

 Mastigocoleus and Plcctonema, but usually the least abundant of the 

 four. 



Dermocarpa Crouan. 



1. Cells scattered. 1. D. soli t aria. 



1. Cells laterally united in pulvinate expansions. 2. D. prasina. 



1. D. solitaria sp. now; P. B.-A., No. 2155. Cellula solitaria, 

 clavata, circa 8 /jl diam., supra discum basale paullo ma jus; superne 

 uniformiter incrassata, vel interdum prope basin parvam expansio- 

 nem annulatam ferente, usque ad apicem rotundatam, circa 20 fi 

 diam.; longitudine ad 75 p; ad maturitatem in duas cellulas divisa, 

 superiore in gonidangium subsphaericum mutanda, gonidia pro more 

 8-12, 5-6 /z diam., continente; cellula inferiore obconioa, supra plana 

 vel concava, contentu laete aeruginoso; membrana crassa, sublamel- 

 losa. 



Cell solitary, clavate, about <S /x diam. above the slightly larger basal 

 disk, increasing in diameter upwards uniformly, or sometimes with a 

 slight ring-like expansion near the base, to the rounded apex, about 

 20 /Li diam.; height up to 75 p. At maturity dividing into two cells, 



