1924] Hylander,—Report on Desmids of Connecticut 209 
*A. Incus (Bréb.) Hass. Waterbury. 
A. octocornis Ehrenb. Lisbon, Salem, Somers, Waterbury. 
STAURASTRUM Meyen. 
S. ACICULIFERUM (Borge) West. Bolton. 
Š. Arctiscon (Ehrenb.) Lund. Bolton. 
S. AVICULA Bréb. Bolton, Chaplin, Pomfret, Wallingford, Wood- 
stock. 
*S. ALTERNANS Bréb. Glastonbury, Southbury, Somers, Walling- 
ford. 
**S. BREVISPINUM F. MAJUS. W. & G. S. West. Bolton. 
S. CRENULATUM Nig. Canterbury, Derby, North Haven, Seymour, 
Sterling, Tolland, Union, Waterbury, Warren. 
S. CUSPIDATUM Bréb. Warren, Woodstock. 
Š. CYRTOCERUM Bréb. Bolton, East Haddam, Wallingford. 
Š. coRoNULATUM Wolle. Tolland. 
*S. CERASTES Lund. Oxford. 
S. DILATATUM Ehrenb. North Haven, Ledyard. 
*S. DICKIEI var. CIRCULARE Turn. Bolton, Warren. 
Š. DEJECTUM Bréb. Bolton, Lebanon, Somers, Voluntown, Water- 
bury. 
S. EUSTEPHANUM (Ehrenb.) Ralfs. Bolton, Wallingford, Woodstock. 
Š. ruRCIGERUM Bréb. Bolton. 
S. GRANDE Bulph. Chaplin, Union. 
*S. gGLADIOSUM Turn. Lebanon, Salem, Waterbury, Woodstock. 
S. GRACILE Ralfs. Ledyard, Woodbury. 
*S. GRACILE var. BILBOSUM West. Putnam. 
*S. GRACILE var. CYATHIFORME W. & G. S. West. Bolton. 
*S. LACONIENSE W. & G. S. West. Lisbon. 
S. LEPTOCLADUM Nordst. Groton. 
*S. MAAMENSE Arch. Waterbury. 
S. MUTICUM Bréb. Seymour. 
*S. ORBICULARE Ralfs. Tolland. 
S. OPHIURA Lund. Ledyard, Tolland. 
S. PUNCTULATUM Bréb. Cornwall, Greenwich, Glastonbury, Lisbon, 
Lebanon, Plainville, Tolland. 
*S. PILOSUM (Nag.) Arch. Oxford. 
*S. PSEUDOTETRACERUM (Nordst.) W. & G. S. West. Bolton. 
S. SEBALDI Reinsch. Wallingford. 
