130 J. MURRAY 



of which make a regular reticulation. No fringe on the fourth leg : a blunt palp at 

 the base of the fourth leg ; no barbs on the claws. 



Detailed description. Length, exclusive of fourth legs and head, about 150 /x ; 

 seta a 40 /* There is no trace of the red colour so generally characteristic of Ecliinisci. 

 The plates are the usual nine. The first and second median plates are each divided 

 into two portions, of which the anterior is larger and has a rounded posterior border. 

 The third median has a similar appearance, but the second portion is so obscurely 

 separated from the lumbar plate that it may be reckoned as part of it. Under 

 pressure there is no trace of division of the lumbar plate into a trefoil. This is a very 

 unusual character. Though a number of species are figured without the slits, it is 

 suspected that they may have been sometimes overlooked. They are often not 

 visible in a dorsal view when the body is drawn together. The eyes are red. 



Habitat. Eumundi, Queensland ; two examples. 



Very similar animals in Hawaii and Canada show an interesting series of changes 

 in the markings of the plates. In the type the reticulation is relatively large, the 

 hexagons measuring 5 or 6 /* in diameter ; in the Hawaiian variety they are only 

 2 or 3 M in diameter ; in the Canadian form no depressions or reticulation can be 

 detected, but the plates are marked by extremely fine pellucid dots. These differences 

 are of some importance, and probably indicate that the three forms have been long 

 isolated. 



In Queensland neither eggs nor larva? were found. It would have been impossible 

 to decide whether the specimens were mature, and the very small size would have led 

 to the supposition that they were young. The Canadian and Hawaiian examples 

 supplied what was lacking in our knowledge. In Canada the species was plentiful. 

 Though no eggs were found, there were a number of larvre. These have a distinctive 

 form, especially of the head and the lumbar plates, which are quite different from 

 those of other species, but more easily understood from the figure than from 

 descriptions (Plate XX. Fig. 52l>). In Honolulu the eggs were found. Skins with 

 eggs were even smaller than the Australian examples, so it may be supposed that 

 these were full-grown. 



The peculiar faceting of the lumbar plate, so well marked in Canada and Hawaii, 

 was not observed in Australia, but the two specimens studied were not in favourable 

 condition for observing such characters. 



The species may be easily distinguished from all others yet known by the small 

 size, large seta a, divided median plates, lack of red colour, and of trefoil. 



The name intermedius does not indicate that the animal is supposed to be truly 

 intermediate between the two great divisions of the genus (those having V. and VI. 

 fused, and those having them separate). It shares some of the characters of both, 

 without being genetically intermediate. 



E. intermedius belongs to a small group of species which have no dorsal or lateral 

 processes after the seta a at the base of the head. There are about a dozen forms in 



