160 
DR. HARVEY ON A COLLECTION OF ALGE 
Callophyllis flabellulata, by Callophyllis coccinea, var. pusilla, in Australia. 
Constantinea Sitchensis, by Constantinea Rosa marina, Kamtskatka. 
Chondrus affinis, by Chondrus crispus, in Europe. 
Halosaccion Hydrophora, (an analogous species to) Gloiosaccion Brownii, 
in Australia. 
Prionitis Lyallii, by Prionitis crinita, in Kamtskatka. 
Callithamnion subulatum, by Callithamnion floccosum, in Europe. 
The following 43 species are common to the Atlantic Coasts of 
North America, and those marked with an asterisk are peculiarly 
American :— 
*Fucus furcatus, Ag. 
F. vesiculosus, L. 
Desmarestia viridis, La. 
D. aculeata, La. 
* Alaria Pylaii, Grev. 
Laminaria saccharina, 4g. 
*L. dermatodea, De la Pyl. 
L. fascia, Ag. 
Striaria attenuata, Grev. 
Chorda lomentaria, Lgb. 
Ectocarpus siliculosus, Lg. 
E. littoralis, Lgb. 
Odonthalia angustifolia, Suhr. 
*Chondria atropurpurea, H. 
Polysiphonia atrorubescens, Grev. 
P. urceolata, Grev. 
Corallina officinalis, L. 
Delesseria Hypoglossum, 4g. 
D. alata, Ag. 
Gracilaria confervoides, Grev. 
Plocamium coccineum, Lyngb. 
Rhodymenia palmata, Grev. 
Rhodymenia Palmetta, Grev. 
Ahnfeldtia plicata, 4g. 
Callophyllis laciniata, Kg. 
Gigartina mamillosa, Lz. 
Halymenia ligulata, 4g. 
Gloiosiphonia capillaris, Carm. 
Ceramium rubrum, 4g. 
C. diaphanum, 4g. 
C. tenuissimum, 4g. 
Callithamnion polyspermum, 4g. 
*C. Americanum, H. 
C. floccosum, 4g. 
Porphyra vulgaris, Ag. 
Enteromorpha compressa, Lk. 
E. intestinalis, Lk. 
Ulva latissima, Ag. 
U. Linza, L. 
Cladophora arcta, H. 
C. glaucescens, Griff. 
C. letevirens, Kg. 
Hormosira Carmichaélii, Kg. 
The following 45 are natives of the British Islands, and generally 
of the Atlantic Coasts of Europe; those marked with an asterisk 
have not yet been found on the Atlantie Coast of America :— 
Fucus vesiculosus, L. 
Desmarestia viridis, Lz. 
D. aculeata, La. 
*D. ligulata, La. 
*Carpomitra Cabrerz, Kg. 
Laminaria saccharina, 4g. 
L. fascia, Ag. 
Striaria attenuata, Grev. 
Chorda lomentaria, Lz. 
Ectocarpus littoralis, Lg). 
E. siliculosus, Lgb. 
Polysiphonia atrorubescens, Grev. 
P. urceolata, Grev. 
*Laurencia pinnatifida, La. 
Corallina officinalis, L. 
Delesseria Hypoglossum, 4g. 
D. alata, 4g. 
Gracilaria confervoides, Grev. 
