ON THE MARINE ZOOLOGY 
OF THE IRISH SEA. 423 
LIST OF THE MARINE ALG. 
[See Reports by Professor R. J. HARVEY Gipson, M.A., F.L,S., in ‘ Fauna,’ vol. i. 
p. 1, and vol. iii. p. 65.] 
CYANOPHYCE. 
Ord. CHROOCOCCACE. 
Glaocapsa crepidinum, Thur. ii. 
iii. 90. 
Ord. CHAMASIPHONACES. 
Dermocarpa prasina, Born. iii.7, A. R. 
iv., lii. 86, 91. 
D. schousbai, Born. 
Ord. OSCILLARIACE. 
Spirulina tenuissima, Kitz. iii. 86, 91. 
S. pseudotenvissima, Crn. iii. 86, 91. 
Oseillaria nigroviridis, Thw. ii. 27, 
iii. 91. 
O. coralline, Gow. ii. 27, iii. 91. 
Phormidium papyraceum, Gom. ii. 27 
{as Osc. spiralis), iii. 91. 
Lyngbya semiplena, J. Ag, ii. 27, ili. 91. 
ili. 86, 91. 
27, | 
Lyngbya estuarii, Liebm. ii. 27, iii. 91. 
LL. majuscula, Harv. ii. 27, iii. 91. 
L. spectabilis, Thur. in herb. iii. 91. 
Symploca hydnoides, Witz, iii. 91. 
Microcoleus chthonoplastes, Thur. ii. 27, 
lii. 92. 
Rivularia biasvlettiana, Menegh. ii. 26, 
ili, 92. 
R. atra, Roth. B. ii. 26, iii, 92. 
Calothrix confervicola, C. Ag. ii. 26, 
qs 92. 
C. pulvinata, C. Ag. 
C. scopulorum, C. Ag. 
Ord. NOSTOCACEA. 
Anabena torulosa, Lagerh. ii. 26, iii. 92. 
Nodularia harveyana, Thur, iii. 92. 
iil. 92. 
ii. 26, iii. 92. 
CHLOROPHYCEZ. 
Ord. BLASTOSPORACEZ, Urospora collabens, H. and B. iii. 94. 
Prasiola stipitata, Subr. A. R. iv. 8, Chatomorpha tortwuosa, Kiitz. ii. 24, 
lili. 92. iii. 96. 
Ord. ULVACE. | Ch. linwm, Kiitz. ii. 24 (as Conf. 
Monostroma grevillei, J. Ag. ii. 22, | crassa), 26 (as Conferva sutoria, 
iii, 92. 
Diplonema confervoides, 
Batt. iii. 92. 
Enteromorpha clathrata, J. Ag. 
iii. 93. 
#. ralfsii, Harv. ii. 23, iii. 93. 
#. erecta, J. Ag. ii. 23, iii. 93. 
#. ramulosa, Harv. i. 24, ii. 23, ili. 93. 
Holm. and 
ii. 23, 
HE. percursa, C. Ag. var. ramosa, J. Ag. | 
li. 23 (as H. percursa), iii. 93. 
EB. compressa, Grev. i. 24, ii.23, iii. 93. | 
#. linza, J. Ag. i. 25, ii. 23, ili. 93. 
LE. intestinalis, Link. i. 24, ii. 23, iii. 93. 
#. canaliculata, Batt. iii. 93. 
Ulva latissima. i. 314, ii. 22 (as U. 
lactuca, var. genwina), iii. 93. 
Ord. ULOTHRICHACK A. 
Ulothrix impleaa, Kiitz, ii. 
Rhizoclonium), iii 93. 
U. isogona, Thur. ii. 24. 
Ord. CHA®TOPHORACE, 
Entoderma wittrochii, Wille. A. R. iv. 7, | 
iii. 93. 
LE. flustra, Rke. A. R. iv. 7, iii. 93. 
Ord. CLADOPHORACEA. 
Urospora pencilliformis, Aresch. ii. 26 
(as Conferva youngana), iii. 94. 
U. flacea, H. and B. ii. 24 (as U. 
flacca), iii. 94. 
TU. bangioides, H. and B. iii. 94. 
24 (as | 
Phye. Brit.), iii. 96. 
Ch. melagoniwm, Kiitz. ii. 23, iii. 96. 
Ch. erea, Kiitz. ii. 24, iii. 97. 
Ch. litorea, H. and B, , ii. 26 (as Con- 
ferva litorea.) 
Ehizoclonium viparium, Harv. 
li, 24, iii. 97. 
Rh. tortuosum, Witz. ii. 24. 
th. arenosa, Kitz. 11.25 (as Conferva 
arenosa). 
Rh. casparyt, Harv. iii, 118. 
Cladophora pellucida, Witz. A.R.iv.8, 
rite to) f(- 
C. hutchinsia, Kitz. ii. 24, 25,(as C. 
diffusa), iii. 97. 
C. utriculosa, Wiitz. var. latevirens, 
Hauck. 1.25(as spec.), li. 25, iii. 97. 
C.rupestris, Kiitz. 1.25, 11. 24, 11. 12,97. 
C. glaucescens, Griff. iii. 97. 
C. fracta, Kiitz. ii. 25, iii. 97. 
C. flexuosa, Griff. i, 24,11. 25, iii. 97. 
C. albida, Kiitz. ii. 25, iii. 97. var. 
refracta, H.and B. ii.25 (as spec.), 
lii. 97. 
C. arcta, Kitz. 
C. lanosa, Kiitz. 
uneialis, Thur, 
iii. 97. 
C. rudolphiana, Kiitz. ii. 25, iii, 118, 
C. gracilis, Kitz. ii. 25. 
i. 24, 
ii. 24, ili. 97. 
li. 25, iii. 97. var. 
ii. 25 (as spec.), 
