1 70 TODUS. 



yet it may be urged that this determinate number of 

 mn0, in the different ranks of circular groups, is a 

 theory too important to be taken on the testimony 

 of one naturalist only, interested in strengthening a 

 theory of his own, and, therefore, with every wish 

 to be accurate, still peculiarly liable to error. Now 

 we shall at once annul this objection, although it 

 rests on no demonstrative evidence, by producing 

 the unpremeditated evidence of one who had no idea 

 of the law in question, but merely drew up his ob- 

 servations to illustrate a particular group of animals 

 in a totally different class. Mr. Macleay's views on 

 the number of circular groups which exist, before 

 he arrived at that of the genus Scarabceus, has thus 

 been stated by himself; and we shall now compare 

 them with those of the genus Todus. 



Rank of the Rank of the 



SCARABCEUS SACER, according TODUS MEGACEPHALUS, 

 to Mr. Maoleay. Swains. 



1. Kingdom, Animalia. 1. Kingdom, Animalia. 



2. Sub-kingdom, Annulosa. 2. Sub-kingdom, Vertebrata. 



3. Class, Ptilata, Arist. (Man- 3. Class, Aves. 

 dibulata, Mad.) 



4. Order, Coleoptera,Lin.^/ocZ. 4. Order, Insessores. 



5. 7Vz'6e,Chilognathiform,A/ac/. 5. Tribe* Pentirostres. 



6. /*am#i/,PetaloceraSapropha- 6. Family, Muscicapida;. 

 ga, Mad. 



7. Sub-family ,Scarabseid3?, Mad. 7. Sub-family, Muscicapinse. 



8. Genus, Scarabaeus, Mad. 8. Genut, Todus. 



9. Sub-genus, Scarabaeus proper, 9. Sub-genus, Todus proper. 

 Mad. 



Type ofform^ Scarabaeus Sacer. Type of form, Todus Megaoe- 



phalus. 



