414 GEOLOGICAL SURVEY OF NEW JERSEY. 
* 
BAMBUSINA, Kutz. 
B. Brebissonii, Kiitz. 
In quiet waters; frequent. 
B. delicatissima, Wolle. 
Burlington: Pleasant Mills. 
DESMIDIUM, Ag. 
D. cylindricum, Grev. 
In ponds; frequent. 
D. quadratum, Nordst. 
Burlington: Brown’s Mills. 
D. longatum, Wolle. 
Same locality. 
D. Swartzii, Ag. 
In shallow pools; frequent. 
D. aptogonium, Breb. 
Similar places ; frequent. 
D. Baileyi (Ralfs), Wolle. (Aptogonium Baileyi, Ralfs.) 
Ocean, and Burlington: Pleasant Mills, in sluggish waters. 
PHYMATODOCIS, Nordst. 
P. Nordstedtianum, Wolle. 
Burlington: Pond at Brown’s Mills. 
SPHAIROZOSMA, Corda. 
S. pulchrum, Bail. 
Frequent in ponds. 
Var. planum, Wolle. 
Middlesex: Near Metuchen. 
Var. inflatum, Wolle. 
Sparingly in ponds. 
S. filiforme, Rab. 
Frequent in ponds. 
S. pulchellum (Arch.), Rab. 
Same habitat. 
