MR. JOSHUA ALDER ON THE ZOOPHYTES. 
Flustra foliacea, Linn. 
truneata, Zinn. 
Carbasea papyrea, Pall. 
Membranipora pilosa, Pall. 
Flemingii, Bush. 
Pouilletii, Audowin. 
Lepralia concinna, Bush. 
trispinosa, Johnst. 
coccinea, Adildg. 
linearis, Hassall. 
Peachii, Johnst. 
ventricosa, Hassall. 
Cellepora pumicosa, Linn. 
ramulosa, Linn, 
Skenei, Hilis and Soland. 
Tubulipora serpens, Linn. 
patina, Linn. 
hispida, /Zem. 
Alecto major, Johnst. 
Crisia eburnea, Linn. 
Alcyonidium gelatinosum, Pallas. 
Pedicellina echinata, Sars. 
HYDROZOA. 
EKudendrium rameum, Pail. 
capillare, Alder. 
Atractylis ————— ? 
Tubularia indivisa. Linn. 
gracilis, Harvey. 
simplex, Alder. 
gigantea, Lam. 
Halecium halecinum, £i/is. 
Beanii, Johnst. 
muricatum, Lillis and Soland. 
tenellum, Hincks. 
Sertularia polyzonias, Linn. 
tricuspidata, Aldor. 
tenella, Alder. 
rugosa, Hlis. 
rosacea, Linn. 
pinaster, Hillis and Soland. 
tamarisca, Linn. 
abietina, Linn. 
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