ANALYTICAL INDEX. 
CHAPTER III.—continued. 
A beautiful animal, 
Plate XVI. explained, 
g.—PLANARIA ALBA, 
A marine a eaieedeeeei aire 
Plate XVI. explained, 
h.—PLANARIA GRACILIS,—Slender Planaria, 
Animal described, 
Plate XVI. explained, 
2,.—PLANARIA EXIGUA, 
Length, form, &c., 
Taken among weeds at Red Brae Poul, 
Plate XV. explained, 
k.—PLaNARIA ALGH,—Sea-weed Planaria, 
Length, thickness, &c., 
Dwells among the marine alge, 
Plate XVI. explained, 
Planaria have no eyes, or they have ont hservation, 
a.—PLANARIA FALCATA,—Crescent Planaria, 
Animal described, 
Taken in Lochend, 
Perhaps an intermediate species, 
Plate XVI. explained, 
b,—PLANARIA STAGNI, 
Length, breadth, &e., 
From Blackhall Pond, 
Plate XVI. explained, 
c.—PLANARIA FECUNDA, 
Description, 
From Lochend, 
Plate XVI. explained, 
d.—PLANARIA FLUSTRH,—Sea Mat Planaria, 
Length, breadth, &e., 
Marine animal, dwells on the Huston ee, 
¢.—PLANARIA VORAX, 
Length, thickness, &c., 
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