70 
RHODOPHYCEAE. 
Sub-Order. PORPHYREAE. 
Fam. PORPHYRACEAE. 
Gen. Erythropeltis, Schm. 
E, discigera, Schm., var. Flusirae, Batt. Rare. 
Hig.: Plate XX) 75,76. 
District: Port Erin. 
Notes: Epiphytic on Flustva. Dredged outside Port Erin Bay. 
Gen. Erythrotrichea, Aresch. 
E. carnea, J. Ag. Frequent. 
Fig.: Oltmanns II, p. 234 [as E. cevamicola]. 
District: Port Erin, Port St. Mary. 
Occurrence: Sporadic. 
Reproduction : Monospores in November. 
Notes: Appeared in large quantities, epiphytic on Cladophora fiavescens, 
in outside fish tanks of Port Erin Biological Station. 
E. Boryana, Berth. 
District: Peel. 
Notes: Single record. No data available. 
Gen. Bangia, [yngb. 
B. fuscopurpurea, Lyngb. Frequent. 
Fig.: Harvey IV, 345. 
District: Port Erin; Port St. Mary; Castletown; Pooyllvaaish. 
Zone: H.W.O.N.T. to M.T. zone generally. 
Occurrence: Pseudo-perennial. 
Reproduction: Spring and Summer. 
Notes: Common in certain localities. Together with Uvospora sp. 
it forms a well-marked zone on large stones at high water 
mark at Port Erin and Pooyllvaaish. It is also frequent 
on the walls of the Harbour Works and of the Raglan Pier. 
It is most noticeable in Spring and Summer. Isolated 
threads may be found on limpets in Winter. 
Gen. Porphyra, Ag. 
P. coccinea, J. Ag. Wery xare. 
Fig.: Kuckuck (1897), p. 390. 
District Seort Erin: 
Zone: Below L.W.O.S.T. 
Occurrence: Annual. 
Notes: Only occurs as an epiphyte on Desmarestia aculeata. 
P. leucosticta, Thur. Frequent. 
Fig.: Oltmanns II, p. 231. 
District: Port Erin; Port St. Mary; Castletown ; Pooyllvaaish. 
Zone: -H:W-OS A. four W.OANE 
Occurrence: Annual. 
Reproduction: Spring and early Summer. 
