108 
D. hippureides, Lyngb. College Point, Jamaica Bay.* 
Family ECTOCARPE#. 
Myriotrichia claveformis, Harv. Greenport, Orient, Mon- 
tauk Point; summer. 
Ectocarpus reptans, Crouan. Greenport, Port Jefferson; 
summer.* 
E. tomentosus (Huds.), Lyngb. College Point; summer.* 
£. granulosus, Ag. Sag Harbor; summer. 
E. granulosus, var. tenuis, Farlow. Sag Harbor; summer.* 
E. confervoides, (Roth.) Le Jolis. College Point, Sag Har- | 
bor.* 
£. confervoides, var. siliculosus, Kjellman. College Point, 
Sag Harbor.* 
E. fasciculatus, Harv. Hell Gate, Orient, Quogue ; summer.* 
£. lutosus, Harv. Great South Bay, Fort Hamilton; 
summer.* , 
E. littoralis, Lyngb. All round the coast. 
E. littoralis, var. robustus, Farlow. All round the coast.* 
E. brachiatus, Harv. College Point, Jamaica Bay ; summer.* 
£. Hoopert, Harv. Greenport; summer.* 
E. Dietzie, Harv. Greenport; summer.* 
Family SPHACELARIE2. 
Sphacelaria cirrhosa (Roth.), Ag. Greenport; October.* 
S. radicans (Dillw.), Harv. College Point; November.* 
Cladostephus verticillatus, Ag. Orient, Oyster Bay; Septem- 
ber and October.* 
Family MYRIONEME&. 
Myrionema vulgare, Thur. Common parasite on other alge. 
Family LEATHESL#. 
Elachistea fucicola, Fries. Common, growing on Fuci; 
summer.* 
Myriactis pulvinata, Kitz. Greenport, Southampton, Orient; 
growing on other alge; summer.* 
Leathesia difformis (L.), Aresch, Parasite; Greenport, Fort 
Hamilton, Orient; summer.* 
Family CHORDARIE&. ae 
‘Chordaria flagelliformis, Ag. Greenport, Sag Harbor, 
Orient; summer.* 
