PREFACE. 



Mollusc Cuvieria minor (McCoy), less than the twelfth of an inch 

 in length; reminding one of the similarly minute food of many 

 Whales. 



The next four plates continue the illustrations of Victorian 

 Polyzoa, the descriptions and type specimens of which have 

 been given by Mr. MacGillivray for this work and the National 

 Museum. 



Plate 109 illustrates the largest species of the group of Insects 

 popularly called Grasshoppers, and often confounded with Locusts. 

 In this I observed for the first time the probable position of the 

 organ of hearing in Insects, in a similar position to that of 

 Macrourous Crustacea. This species is a close representative of 

 the Great Green Grasshopper of Europe, and has not been figured 

 before. 



The last plate, 110, gives detailed illustrations of our common 

 Yellow-winged Locust as a type of the great group of Locusts, 

 often confounded with Grasshoppers, but the characteristic 

 structural differences of these two groups are shown in contrast 

 by the figures on this and the preceding plate. 



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. 

 30th July, 1885. 



