PREFACE. 



The fifth plate illustrates the Sea Gar-fish, or Half-beak, of our 

 coasts ; and the Saury Pike, of the variety usually called Scom- 

 beresox Forsteri, although I doubt its distinction from the European 

 Saury Pike, S. saurus. 



The next three plates continue the illustrations of Victorian 

 Polyzoa, for the specimens and descriptions of which I am indebted 

 to Mr. MacGillivray. 



The following plate, No. 139, gives figures for the first time 

 of our commonest solitary Locust of the flat-horned group, the 

 Opsomala sordida; and also of a Locust, entirely wingless in the 

 adult state of both sexes, the Mesops pedestris : remarkable for 

 having the eye in the middle of the side of a long conical head, 

 far from the antennae. 



The last plate illustrates in full detail our commonest species 

 of the division of Keel-backed Locusts, having the thorax com- 

 pressed into a thin prominent keel, the Tropinotus Australis. 



The succeeding Decades will illustrate as many different genera 

 as possible, and will deal first, usually, with species of some special 

 interest, and of which good figures do not exist or are not easily 

 accessible. 



Frederick McCoy. 

 20th May, 1887. 



