538 BULLETIN OF THE BUREAU OF FISHERIES. 
CHART 268.—Distribution of alge on Spindle Rocks, April 22, 1905. 
Rocks still very bare above low-water mark, where they were scraped clean during the winter by 
floating ice. Cladophora lanosa var. uncialis (11) formed a green fringe on certain rocks near low-water 
mark (the dotted line), with the brown alge Phyllitis fascia (24) and Scytosiphon lomentarius (26) begin- 
ning to appear lower down; this rather imperfect brown zone was composed of young growth and was 
not very conspicuous at this date. Well below low water were growths of the conspicuous red alge 
Polysiphonia urceolata (47) and Chondrus crispus (49). 
List of species: Cladophora lanosa var. wncialis, 11, very abundant; Ectocarpus @cidioides, 13, on 
old Laminaria; Ectocarpus fasciculatus, 15, abundant on larger alge; Ectocarpus ovatus, 17, on mussel 
shells; Ectocarpus penicillatus, 18, very abundant on larger alge; Sorocarpus uveformis, 21, on mussel 
shells; Desmotrichum balticum, 22, mixed with Scytosiphon; Desmotrichum undulatum, 23, mixed with 
Scytosiphon; Phyllitis fascia, 24, young growth on rocks; Scytosiphon lomentarius, 26, young growth on 
rocks; Desmarestia viridis, 27, many young plants; Chordaria flagelliformis, 28, young plants; Chorda 
tomentosa, 32; Laminaria Agardhii, 33; Acrochetium virgatulum, 39, on Ceramium,; Ceramium rubrum, 
43; Polystphonia urceolata, 47, abundant; Chondrus crispus, 49, abundant. 
