106 On the Genus Amathia of Lamouroux, 



accurate and artistic, that his work forms a new area in this 

 study of these organisms. They will no longer be so beset 

 with difficulty as they have hitherto been if his example is 

 followed.* 



EXPLANATION OF PLATE. 



Fig. 1. — Amathia lendigera. — Linn, after Ellis. 



Fig. 2. — Ditto, cells much magnified, after Busk ; a. a., 

 armature of mouth. 



Fig. 3. — Amathia cornuta. — Lamx., copied from the fig. 

 in Polypiers flexibles, pi. 4, fig. 1. 



Fig. 4. — Amathia spiralis. — Lamx., from fig. op. cit., 

 pi. 4, fig. 2. 



Fig. 5. — Same, nat. size ; from the same. 



Fig. 6.— Amathia tortuosa.—Temson- Woods. 



* See especially " Notes on the Genus Retepora" Ann. Nat. Hist, May, 

 1878, p. 353 ; on " Polyzoa from Iceland and Labrador," Jan., 1877, p. 97. 



