650 MR. P. D. MONTAGUE ON THE 
3. CoRMOCEPHALUS TURNERI Pocock. 
Pocock, Annals & Mag. Nat. Hist., 7th Series, vol. viii. p. 456 
(1901). 
Three examples, taken on Hermite, differ from the type from 
Perth, Western Australia, in that the last tergum has a distinct 
median groove, which is lacking in the mainland form. 
4, ASANADOPSIS MJOBERGI Kraepelin. 
At the time of writing, Professor Kraepelin’s description of this 
species, which was sent to him by Dr. Mjéberg from North- 
Western Australia, was not yet published. Professor Kraepelin 
considers this second example from Hermite to be identical, 
though he could not be absolutely certain, for he had sent back 
the type and was consequently unable to compare the two. 
One species of scorpion was obtained on Hermite. It is 
identified by Dr. Kraepelin as Lychas variatus Thor. 
PISCES. 
The following fishes are inhabitants of the tidal lagoons. They 
nave been identified by Mr. C. Tate Regan. 
1. Orectolobus tentaculatus Peters. 
Rhinobatus armatus Gray. 
. Murena thyrsoidea Richards. 
Plotosus anguillaris Bloch. 
Cheroichthys valenciennei Kaup. 
Pseudochromis fuscus Miller & Trosch. 
Valenciennea longipinnis Benn. 
. Gobius phalena Cuy. & Val. 
. Opsanus diemensis Lesueur. 
oe wt 
Io 
woe 2) 
SUMMARY AND CONCLUSIONS. 
In considering the relation between these islands and the main- 
land, a feature of primary importance is the extreme shallowness 
of the sea between them and the mainland, in all probability 
indicating a separation of comparatively recent date. The 
invertebrate fauna of Barrow Island is unfortunately little known. 
The identity of the Wallaby, Lagorchestes conspicillatus, and the 
Bandicoot, /soodon barrowensis, support the theory that Barrow 
and the Monte Bello Group were continuous long after their 
separation from the mainland. 
The fauna, however, is not typical Vorth-West Australian, such 
as is met with in the Ashburton district, but comprises many 
Northern and South-Western forms. There are, furthermore, few 
species, and these are of mixed distribution. Many characteristic 
North-Western forms are entirely absent, though a high per- 
centage of those species not. easily transported (such as the 
Reptiles and Chilopoda) are identical with, or slightly modified 
representatives of, the species occurring in the immediate vicinity 
upon the mainland. Mr. Hogg, in dealing with the spiders, has 
