48 
E. intestinalis, Link. Locally abundant. 
Fig: Harvey EV, 335. 
District: Port Erin; Port St. Mary; Castletown; Pooyllvaaish. 
Zone EW _OS-4, 
Occurrence: Pseudo-perennial. 
Reproduction: At all times, maximum in Summer. 
Notes: Found in high brackish pools at Pooyllvaaish and Port St. 
Mary. Very large specimens obtained from estuary of 
river at Castletown. 
E. micrococca, Kitz, var. tortuosa, J. Ag. Locally abundant. 
Pie. Plate XV, 40, 50; 52- 
District: Port Erin; The Chasms. 
Zone: TT WeOsSs 
Occurrence: Pseudo-perennial. 
Reproduction: At all times of the year. 
Notes: Found mixed with Prasiola stipitata. 
Gen. Ulva, L. 
U. lactuca, L. var. latissima, D.C. Abundant. 
Fig.: Harvey IV, 340 [as U. latissima]. 
District : Abundant everywhere. 
Zone: Occurs in all zones. 
Occurrence: Pseudo-perennial, maximum development in Summer. 
Reproduction : At all times of the year, maximum sporing in July and 
August. 
Notes: Very abundant on Port Erin shore, where fresh water present. 
Diminishes in September, leaving shore white with depleted 
plants. More common in M.T. zone in winter, but migrates 
to upper zone in Summer. 
Fam. ULOTHRICHACEAE. 
Gen. Ulothrix, Kititz. 
U. implexa, Kitz. 
Fig.: Harvey IV, 370 [as Lyngbya Cuileriae]. 
District : Port Erin. 
Occurrence : Sporadic. 
Reproduction: Usually reproductive whenever found. 
Notes: Found on the sides of the fish tanks at Biological Station. 
U. flacca, Thur. Not uncommon. 
Fig.: Harvey IV, 369 [as Lyngbva flacca). 
District: Port Erin; Port St. Mary; Castletown; Pooyllvaaish. 
Zone; Te W-OIN. 
Occurrence: Annual, Summer. 
Reproduction : Summer. 
Notes: Generally found in brackish pools near high water zone. 
