324 GUERNSE Y. 
RHODOPHYCEAE. 
Chantransia chalybea, Fr. 
On stones in a rivulet behind Les Vauxbelets, St. Andrews. 
Batrachospermum moniliforme, Roth. 
Sparingly in pools at Grande Mare. 
DESMIDIACEAE. 
Leptocystinema Kinahani, Arch. 
I once found this singular Desmid in considerable abundance in 
a trickling streamlet in Saints Bay Valley. 
Cosmarium tetrophthalmum, Breb. 
Grande Mare, in pools. 
Cosmarium margaritiferum, Meneg. 
Grande Mare, not uncommon in some gatherings. 
Cosmarium Botrytis, Meneg. 
In a water-trough near the Corbiere, scarce. 
Docidium truncatum, Breb. 
Grande Mare. 
Closterium Lunula, Ehr. 
Frequent in gatherings from Grande Mare. Saints Bay Valley in 
ditches. 
Closterium acerosum, Ehr. 
Not uncommon in water-troughs and wells. 
Closterium Ehrenbergii, Meneg. 
With the last : rather common in many places. 
Closterium Dianae, Ehr. 
Grande Mare. Water-trough at King’s Mills. 
