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ON THE MARINE ZOOLOGY OF THE IRISH SEA. 425 
Ord. SPOROCHNACEX. 
Sporochnus pedunculatus, C. Ag. iii. 
102. 
Ord. CUTLERIACEZ. 
Cutleria multifida, Grev. 
103. 
Wu. 22, ii. 
Aglaozonia parvula, Zan. ii. 22, iii. 
119. 
Ord. FUCACE2. 
Fucus ceranvides, Linn. iii. 103. 
F. vesiculosus, Linn. i. 312, ii. 17, iii. 
10, 20, 103. 
F. serratus, Linn, 
10, 20, 103. 
F. platycarpus, Thur. ii. 17, iii. 103. 
Ascophyllum nodosum, Le Jol. i. 312. 
(as Fucus), ii. 15, 17, iii. 10, 11, 20 
Vaol2yalt, Wet, Lit. 
(as Fueus), 103. var. scorpioides, 
Hauck, ii. 17, iii. 119. 
Himanthalia lorea, Lyngb. 
20, iii. 11, 1038. 
Halidrys siliquosa, Lyngb. 24, 112, 
312; ii. 11 (as Fucus), 17, i lii. 103. 
Pelvetia canaliculata, Decne et Thur. 
ii. 17 (as Fucus), ii. 103. 
Cystoseira, sp. ii. 17, 20, iii. 119. 
Ord. DICTYOTACE A. 
Dictyota dichotoma, Lamx. i. 313, ii. 
18, iii, 104. var. implewa, J. = 
iii. 104. var. intricata. iii.8 (A. R 
iv.). 
Taonia atomaria, J. Ag. iii. 104. 
Dietyopteris pols ypodivides, Lamx. iii. 
119. 
1, Li 18, 
RHODOPHYCE.X. 
Ord. PORPHYRACES. 
Porphyra laciniata, C. Ag. i. 24, ii. 
5, 8 (as P. vulgaris), iii. 104. 
Bangia Suscopurpurea, Lyngb. 
iii. 104. 
Ord. HELMINTHOCLADIACE®. 
Chantransia virgatula, Thur. 
104. 
Ch. secundata, Thur. iii. 8 (A. R. iv.), 
104. 
Ch. daviesii, Thur. 
thamnion), iii. 104. 
Helminthocladia purpurea, J. Ag. iii. 
104. 
Helminthora divaricata, J. Ag. iii. 105. 
Nemalion multifidum, J. Ag. ii. 6, iil. 
119. 
Ord. GELIDIACE. 
Naccaria wiggii, End. ii. 6, iii. 105. 
Gelidium corneum, Lamx. i. 24, ii 
12, iii. 105. 
G. crinale, J. Ag. 
Ord. GIGARTINACEH. 
Chondrus crispus, Stackh. 
ii. 9, iii. 12, 105. 
Gigartina mamillosa, J. Ag. ii. 10, 
iii. 105. 
Phyllophora vubens, Grev. 
15, iii. 105. 
P. membranifolia, J. Ag. i, 24, i1. 10, 
iii. 105. 
P. traillii, H. and B. 
iv.), 105. 
P. palmettoides, J. Ag. iii. 105. 
Gymnogongrus griffithsie, Mart. ii. 
10, iii. 105. 
G. norvegicus, J. Ag. 11.10 (as Chon- 
drus), tii. 105. 
Ahnfeldtia plicata, Fries. 
iv.), 105. 
Callophyllis laciniata, Witz. ii. 11 
(as Rhodymenia), iii. 106, 
ii. 3, 
ii. 5, ili. 
ii. 7 (as Calli- 
ii. 13, iii. 105. 
i. 25, 313, 
i, 24, ii. 10, 
iii. 8 (A. B. 
iii. 7 (A. R. 
Ord. RHODOPHYLLIDACE. 
Cystoclonium purpurascens, Kiitz. i. 
24 (as Hypnea), ii. 11, iii. 106. 
Catenella opuntia, Grev. i. 313, ii. 12, 
iii. 8 (A. R. iv.), 106. 
Rhodophyllis bifida, Kiitz. ii, 10 (as 
Rhodymenia), tii. 107. 
Ord. SPH ZZROCOCCACEA. 
Spherococcus coronopifolius, Grey. il. 
12, iii. 107. 
Gracilaria confervoides, Grev. 1. 25, 
iis L2, 10,107. 
Calliblepharis ciliata, Kiitz. i. 24, ii. 
10 (as Rhodymenia), iii. 8 (A. R. iv.), 
107. 
C. jubata, Kiitz, iii. 7 (A. BR. iv.), 
107. 
Ord. RHODYMENIACE 4, 
Rhodymenia palmata, Grev. 
iii. 108. 
Rh. palmetta, Grev. 
iii. 108. 
Lomentaria articulata, Lyngb. ii. & 
(as Chylocladia), 11, iii. 12, 108. 
L. elavellosa, Gaill. iii. 108. 
Champia parvula, Harv. iii. 108. 
ii. 11, 18, 
TERRIERS Wire) 
Chylocladia halifor mis, Grev. ii. 13 
(as Lomentaria), ili. 108. 
Ch. ovalis, Hook, iii. 108. 
Plocamium coccineum, Lyngb. 1. 313, 
ii. 10, iii. 108. 
Microcladia glandulosa, Grev. iii. 120. 
Euthora cristata, J. Ag. iii. 120. 
Ord. DELESSERIACE A, 
Nitophyllum punctatum, Grev. 
iii. 108. 
NV. laceratum, Grey. 
Delesseria alata, Larx. 
iii, 108. 
D.sinuosa, Lamx, i. 24,ii.12, iii.108. 
D. hypoglossum, Lamx. ii. 12, iii. 109. 
Dz ruscifolia, Lamx. ii. 12, iti, 109. 
ii. 12, 
ii. 12, iii. 108. 
i, 24, 11. 12, 
