1924] Hylander,—Report on Desmids of Connecticut 207 
E. EVOLUTUM var. INTEGRIUS W. & G. S. West. Plainfield. 
E. GEMMATUM Ralfs. Ashford. 
E. INSULARE (Wittr.) Roy. Plainfield, Salem, Waterbury. 
E. oBLoNGUM (Grev.) Ralfs. Ledyard, Lebanon, Tolland. 
E. prcrum Borg. Ashford, Ellington, Griswold, Oxford, Putnam, 
Seymour, Tolland. 
*E. SINUOSUM var. REDUCTUM W. & G. S. West. Lebanon. 
E. vERRUCOSUM Ehrenb. Bolton, Woodstock. 
MICRASTERIAS Ag. 
M. AMERICANA (Ehrenb.) Ralfs. Groton, Woodstock, Voluntown 
M. AMERICANA var. Borpru Gutw. Old Lyme, Wallingford. 
M. APICULATA (Ehrenb.) Menegh. Voluntown. 
*M. APICULATA var. FIMBRIATA (Ralfs) Nordst. Eastford. 
M. Cnux-MzuiTENSIS (Ehrenb.) Hass. Wallingford. 
M. pENTICULATA Bréb. Bolton, Ledyard, Tolland. 
M. rATICEPS Nordst. East Haddam, Lebanon, Union, Voluntown, 
Waterbury, Woodbury. 
M. muricata (Bailey) Ralfs. Ashford. 
*M. MAHABULESHWARENSIS Hobs. North Stonington. 
*M. PINNATIFIDA (Kütz.) Ralfs. Bolton, Union. 
M. rapiata Hass. Bolton, Lisbon, Somers, Woodstock. 
M. rotata (Grev.) Ralfs. Griswoid, Lebanon, Salem. 
M. Sor (Ehrenb.) Kütz. Eastford, Ledyard, Southbury, Water- 
bury. 
M. truncata (Corda) Bréb. Bolton, Salem, Tolland. 
COSMARIUM Corda. 
C. Botrytis Menegh. East Haddam, North Haven. 
*C. Bresissonit Menegh. Ashford, North Stonington. 
C. coNTRACTUM Kirch. Ansonia, Bolton, Warren, Waterbury. 
C. Broome! Thwaites. Derby. 
C. Cucumis Corda. Ledyard. 
*C. cycticum Lund. Union. 
C. DENTATUM Wolle, North Stonington. 
*C. DEPRESSUM V. ACHONDRUM (Boldt) W. & G. S. West. Ashford, 
Waterbury. 
C. GALERITUM Nordst. Waterbury. 
C. GRANATUM Bréb. Greenwich, Warren. 
