14S HORN KXPRDITION — SUMMARY. 



Whilst somo arc widely distributed ovoi' tho wjioje region amongst tho loamy 

 and sandy flats of the Lower Stoppos and on tho ))road valloy and ovon liillsidos 

 of tho ITighor Steppes oth(!rs are more or less char.acteristic of one or otlier of 

 these disti'icts, and others again are still more local and appear to live in small 

 ci)loni(>s occupying a veiy restricted area. 



The most widely diffused forms are Gehyra van'cgnfa which is always to lie 

 met with under logs and the liark of trees, Aniphiliolitrit<. rcticulalus huri-owing 

 everywhere on sandy and loamy ground and perhaps the most ahund.mt of all 

 forms ; Aiiipliibolurus harhatus, even moiv^ widely spr'cad than the ftirmer hut not 

 nearly so numerous ; Molocli Iiorridus and the uhiquitous Et^cr/iia 7vliilii and 

 Iliniilia /ciuenrii, while Ei^crnia stokesi is found on the hard loamy plains of tho 

 Higher and Lower Steppes but wA, in soft sandy country or upon the ranges. 



Certain species, on tlie other liand, though tliey extend to a certain extent on 

 to the Lower Steppes are characteristic of the Tligher Steppes ; such for examph^ 

 ai'(^ Nepliriirus nspcr, Varaims gii:;anfei(S — the largest of Australian lizards, which 

 lives in caves and holes amongst the higher ranges — Vaj-aniis puncialus and 

 /'. nccDithurus and amongst the sm/iller forms tiie four species of Al)lepharus. 



The Lower Steppes are characterised liy the following series, some of which 

 again spread to a certain extent on to the Higher Steppes. Amongst the common 

 forms are Aiiipliibolunis picliis, which though it extends farther north is peculiarly 

 characteiistic of the southern pait, and Tiliqiia occipitalis. 



Aiiiphiholuriis ?/iacii/a/its, the most brilliant in colounition of all the lizartls, is 

 very restricted in distribution, occurring in one or two colonies along the Finke 

 and the same applies to Varaiius cniiiiiis, a ground form. 



RliyncA'ditra ortinfn is known in the Centre only from tho noghbourhood of 

 Charlotte Waters, from which also como the two most interesting species .secured 

 during tho Expedition, viz., Ebcnnvin lioriii and Cerainodaclyliis danunts* The 

 former is the representative of a genus containing only one other species in 

 Madagascar — a distribution which calls to mind that of the genus Casuarina 

 amongst plants. 



Ebenavia is distinguished from other genera of tho Gockonid;e such as 

 Diplodactylus by the aljsonce of claws and is most closely allied to Phyllodactylus, 

 a genus not represei^ted in tho Centre but with three species in West Australi.i, 



■ Ci'i-niiimlncfiihis (hniiirds h.as siiifo been recoidod liy .Messrs. Lufas nmi Krost as ocfun-iTv.;- in Noi-tluTii 

 (tiiroiislaiiil. 



