Fanned Swbregions of Australia. I (.:{ 



because the more recent constituents are more readily discerned than 

 those of older date. 



1. Cicintltlidae. — This family may be taken to be wholly an 

 immigrant group, derived from the Austro-Malayan and Pacific 

 sources. The genera C'ivindela and Tricondyla are Austro-Malayan; 

 Meyace/i/iala, A' ickerha , Distypsidera and Ri/sophura are of 

 Pacific origin. 



2. Garabidae. — The Carabidae of Australia with Tasmania as at 

 present known are eomprised of 28 tribes, 2UU genera and 1430 

 species ; amongst this great complex are found representatives of 

 the four elements of the Australian fauna, but it is not yet easy 

 to define clearly the Pacific and Antarctic types from one another, 

 nor either of these from the New Holland element. 



(1) Austro-Malayan. — This element is very largely represented 

 in the fauna of Australia, especially in the Cape York Peninsula. 

 The following 1U tribes are wholly Austro-Malayan as far as their 

 Australian representatives go : — Aporomini, Panagaeini, Chlaeniini, 

 Masoreini, Perigonini, Odacanthini, Dryptini, Physocrotaphini, 

 Zuphiini, Brachynini. These tribes contain 20 genera and 52 

 species. Only one of these genera, viz., Eudalia, belonging to the 

 tribe Odacanthini, is peculiar to Australia. The percentages of the 

 Australian totals shown by this immigrant fauna are : — Tribes .'55. T. 

 genera 10, species 3.6; and there aie besides at least 25 genera 

 belonging to cosmopolitan tribes which are of evident Austro- 

 Malayan origin; the addition of these would make 45 Austro- 

 Malayan genera in Australia or 22.5 per cent, of the total number. 

 If we take away from the Australian total of 2(3 tribes the 10 

 Austro-Malayan tribes recognised above, it leaves Australia with a 

 CaraMauna poor in tribal types. Europe had in 1896 34 tribes. 145 

 genera, and 2180 species. 



(2) Antarctic. — There is one tribe in Australia of undoubted 

 Antarctic origin, viz., Migadopini ; it is confined to the Bassian sub- 

 region, and has representatives in New Zealand and South America 

 (also in the Falkland and Auckland Islands). The Mecodemides 

 (Genera Pereosoma, Lychnus, etc.), a group of the tribe Broscini, 

 largely represented in New Zealand, is also an Antarctic group. 



(3) Pacific. — I have not been able to recognise satisfactorily the 

 constituents of the Pacific element in the Australian Carab-fauna. 

 Probably this can only be done by someone with a good knowledge 

 in nature of the faunas of New Caledonia and New Zealand. 



(4) New Holland. — Tribes Pamborini and Cuneipectini. Groups 

 Carenides (tribe Scaritini) Promecoderides (tribe Broscini). the 



