422 GEOLOGICAL SURVEY OF NEW JERSEY. 
C. biretum, Breb. 
Bergen: In a sluggish stream near Closter—Austin. 
C. celatum, Ralfs. 
Frequent in ponds. 
C. Kjellmanii, Wille. 
Sussex: Wood Lake. 
C. Blyttii, Wille. 
Sussex: Wood Lake and Longwood Pond. 
C. supraspeciosum, Wolle. 
Frequent in ponds, northern parts of the State. 
C. pectenoides, Wolle. 
Frequent in small ponds. 
C. Turpinii, Breb. 
In ponds; not rare. 
TETMEMORODS, Ralfs. 
T. Brebissonii, Menegh. 
Var. turgidus, Ralfs. 
T. granulatus, Ralfs. 
T. leevis (Kiitz.), Ralfs. 
All these are frequent in ponds. 
T. minutus, De By. . 
In ponds ; occasional. 
T. giganteus, Wood. 
Atlantic: Pond, Atsion. 
XANTHIDIUM, Ebrb. 
xX. armatum (Breb.), Ralfs. 
Atlantic: In ponds, Hammonton and Pleasant Mills. 
X. aculeatum (Ehrb.), Breb. 
Morris: Lake Hopatcong. 
X. cristatum (Breb.), Ralfs. 
Atlantic: Hammonton. 
