532 Wisconsin Academy of Sciences , Arts , and Letters . 
Myxophyceae: Chroococcus minutus var. minimum v. 
Keissler, *C/z. limneticus var. carneus (Chod.) Lemm., 
*Ch. limneticus var. subsalsa Lemm., * Microcystis aeruginosa 
var. major (Wittr.), *M. incerta Lemm., *Coelosphaerium 
Naegelianum Unger, *Merismopedia punctata Meyen, *Apha- 
nocapsa pulchra (Ktz.) Rab., Dactylococcopsis raphiodes 
Hansgr., Gloeochaete Wittrockiana Lag., *Lyngbya limneticus 
Lemm., Spirulina princeps W. & G. S. West, *Anabaena 
planctonica Brunnth., *A. affinis Lemm., *A. spiroides var. 
crassa Lemm., *A. macrospora var. robusta Lemm., Scy- 
tonema Arcangelii B. & T. 
Chlorophyceaes Characium longipes Rab., *Pediastrum 
intergum Nag., *P. duplex var. reticulata Lag., *P. duplex 
var. rotundatum Lucks, *P. Kawraiskyi Schm., *P. simplex 
var. clathratum (Schr.) West, Euastropsis Richteri (Schm.) 
Lag., *Tetracoccus botryoides West, *Dimorphococcus lunatus 
A. Br., *Richteriella botryoides (Schm.) Lemm.,* R. quadriseta 
Lemm., *Oocystis parva W. & G. S. West, *0. elliptica var. 
minor W. & G. S. West, *0. nodulosa W. & G. S. West, *0. 
Novae-Semliae var. maxima W. & G. S. West, *Chodatella 
ciliata (Lag.) Lemm. *Ch. Droescheri Lemm., *Ch. subsalsa 
Lemm. *Tetraedron limneticum Borge, T. pusillus (Wal- 
lich) W. & G. S. West, Sorastrum americanum (Bohl.) 
Schm., *Scenedesmus arcuatus Lemm., *S. brasiliensis 
Bohl., *S. acutiformis Schrod. S. serratus (Corda) Bohl. 
5. quadricauda var. maximum W. & G. S. West, *Te- 
trastrum Staurogeniaeforme (Schrod) Chod., *Crucigenia 
quadrata Morren, *C. Lauterbornei (Schm.) Chod. *A. 
Pfitzeri (Schrod.) West, * Kirchneriella contorta (Schm.) 
Bohl. Zygnema pectinatum var. conspicuum (Hass.) Kirch. 
Debarya laevis (Ktz.) W. & G. S. West, Geminella inter- 
rupta (Turp.) Lag. Radiofilum conjunctum Schm. Radio- 
filum flavescens West, * Herposteiron Hyalothecae Hansg. 
Herposteiron polychaete Hansg. 
Heterokonteae: Characiopsis pyriformis Borzi, Mis- 
chococcus confervicola Nag. *Ophiocytium capitatum var. 
longispinum (Mob.) Lemm. 
During the progress of this work about 90 lakes have 
been visited. The following are listed in Birge and Juday, 1 
so that their location need not be mentioned. 
1 Birge, E. A. and Juday, C.; The Inland Lakes of Wisconsin. Wis. 
Geol. and Nat. Hist. Survey Bull. XXVII (Scientific Series, No. 9) 1914. 
