15 OS Proceedings of th Royal Irish Academy, 



Ghantvanaia endozoica Darb. — CB r. See note. 



Ala viae Jons. — CI r. See note. 



[Daviesii Thur.] — Roundstone. 

 Nemalion elininthoides Batt. — CI/. See note. 



multifidum J. Ay.— CI c. 

 Ililminthora divai'icata J. Ag. — Old Head c, CI /•. 

 Boinaia fnrcellata Bivona. — CB r. See note. 



Choreocolax Polysiphoniae Beinsch. — Old Head r. On Polysiphonia fastigiata. 

 •Harveyella mirabilia Schm. ct Bkc. — CI, CB, /. On Jihodomela suhfnsca. 

 Pterocladia capillacea Born. — CI r. 

 Gelidium crinale J. Ag. — Old Head r. In sand-pools. 



pusillum he Jol.—Cl, CB, /. 



pulchellum KUte.— CI/. 



latifolium Born. — CI r, 



* aculeatum Batt.—f. See note, 

 corneum Lamour.—f. 



GlGARTINAE. 

 Chondrus crispus Stackh. — c. 

 Gigartina mamillosa /. Ag. — c. 

 Phyllophora rubens Grev. — CI Z ; Roonali, Old Head, c. 



Brodiaei J. Ag. — Mulranny r. See note. 



Traillii Holmes and Batt. — Roonah r. In caves. 



membranifolia J. Ag. — CI, Roonah, f. 

 Gymnogongrus Griffithsiae Martins. — Old Head r. In sand-pools. 



norvegicus J. Ag. — Old Head r. 

 Ahnfeltia plicata Fr. — /. 

 Actinococcus subcutaneus Bosenv. — Mulranny r. On Phyllophora Brodiaei. 



aggregatus Schm. — Old Head?'. On Gymnogongrus Griffithsiae. 



peltaeformis Schm. — Old Headr. On G. norvegicus. 

 Colacolepis incrustans Schm. — Old Head?-. On Phyllophora rubens. 

 Sterrocolax decipiens Schm. — r. On Ahnfeltia plicata. 

 Callophyllia laciniata Kiitz. — /. Washed ashore. 

 Callocolax neglectus Schm. — •/. On Callophyllus laciniata. 

 Callymenia reniformis /. Ag. — CI r. Washed ashore. 



* Larterae Holmes. — CI r. Washed ashore. See note. 

 Cystoclonium purpurascens Kiitz.— c. 



Catenella Opuntia Good, and Wood. — CI r, CB, AS, c. 

 Rhodophyllis bifida Kiitz. — CI/. Washed ashore. 



Rhodymeninae. 



Sphaerococcus coronopifolius Grev. — CI/. Washed ashore. 

 Gracilaria confervoides Grev. — CB, AS, c. See note. 



* ear. procerrima Batt. — See note. 



