1924] Hylander,—Report on Desmids of Connecticut 205 
NETRIUM Nag. 
N. Drerrus (Ehrenb.) Itzigs. & Rothe. Derby, Griswold, Kent, 
Lebanon, Ledyard, Oxford, Plainfield, Salem, Somers, Wallingford, 
Woodstock. 
N. Diairus var. constricrum W. & G. S. West. Tolland. 
PENIUM Bréb. 
*P. CucuRBITINUM Biss. Salem. 
*P. crucIFERUM (DeBary) Wittr. Salem. 
P. MARGARITACEUM (Ehrenb.) Bréb. Salisbury, Tolland. 
P. NavicuLA Bréb. Ashford, East Haddam, Griswold, Killingly, 
Voluntown, Woodbridge. 
CLOSTERIUM Nitzsch. 
C. ABRUPTUM West. Woodstock. 
*C. ARCHERIANUM Cleve. Union. 
C. cosrATUM Corda. Ledyard. 
C. CYNTHIA DeNot. Bozrah. 
C. DIANAE Ehrenb. Ansonia, Canaan, Cheshire, Cornwall, 
Montville, North Haven, Oxford, Old Lyme, Plainfield, Saybrook, 
Voluntown, Wallingford. 
C. DIDYMOTOCUM Corda. Woodstock. 
C. EHRENBERGII Menegh. Union, Voluntown. 
C. INTERMEDIUM Ralfs. Ansonia, Bolton, East Haddam, New 
Britain, Saybrook, Tolland. 
C. rncurvuM Bréb. Southbury. 
C. Jenner Ralfs. Griswold. 
*C. GRACILE V. ELONGATUM W. & G. S. West. Preston. 
C. Kurzincu Bréb. Bolton, Cheshire, Montville, Salem, Volun- 
town, Waterbury. 
C. LEIBLEINII Kütz. Cornwall, Ledyard. 
C. LIBELLULA Focke. Ashford, Union, Waterbury. 
C. LINEATUM Ehrenb. Bolton, Groton, Lisbon, Woodstock. 
C. Lunuta (Müll.) Nitzsch. Cheshire, Old Lyme. 
C. MONILIFERUM (Bory) Ehrenb. Ansonia, Brooklyn, Cheshire, 
Derby, East Haddam, Groton, Glastonbury, Kent, Ledyard, Lisbon, 
Meriden, Montville, New Britain, Naugatuck, Saybrook, Southbury, 
Thompson. 
C. PsgupoptANAE Roy. Lebanon, Griswold. 
