652 ME JAMES MURRAY ON 



spines on fourth leg. Small barbs on the inner claws. Central parts of all plates with 

 pattern of pearly dots, forming irregular reticulation (fig. 4c). Colour red. 



Sizes, — length up to 500m, claws 32m, reticulations 6m to 10m. There is a small 

 spine on the first leg. 



Top of Ronas Hill, Shetland, September 1906. 



The above diagnosis is made from the Scotch example, and agrees with Professor 

 Richters' description, except in some minor details. The small dorsal spines 

 appear to be variable in number. Our examples had four on segment II, 8 on III, 

 and 6 on IV. All of these, except 2 on IV, are on the margins bordering on the 

 median plates. 



The reticulation is quite different from that of E. reticulatus, both in the nature of 

 the bounding lines and in their irregularity of size and form. 



It is by far the largest member of the genus yet found in Scotland. 



E. gladiator, Murray (6). 



The eggs, unknown when the description was published, have been found in Loch 

 Morar. An example 166m in length (far from the largest size) had two eggs measuring 

 70m by 58m. A two-clawed larva 120m long was also got in Loch Morar. An example 

 from Ben Lawers, 200m long, had claws 14m long. 



Hitherto only known in Scotland. I have the pleasure of reporting that Herr 

 Sellnick of Konigsberg has recently discovered it in the Faroes. 



Var. exarmatas, var. nov. (Plate I. figs. 5a, 56.) 



Exactly like the type, except in two characters — there is no median spine, and the 

 barbs of the inner claws are smaller. Length 166m. 



Top of Ronas Hill, Shetland, September 1906. Though E. gladiator (type) was 

 not found in Shetland, the variety was found several times. Both the variety and the 

 type have segments III and IV with paired plates, though this is not indicated in the 

 original figure of E. gladiator. The pairing is indicated mainly by the cessation of the 

 dots. The dotting, unlike that of E. mutabilis, is not continued on the connecting 

 membrane between the plates. All the median plates are small ; the first and second 

 are divided in two transversely ; and all show slight appearance of being paired, most 

 marked in the anterior part of the second median. 



E. ivendti, Richters (16), (19). 

 Loch Lochy, length 260m ; the two-clawed larva Ben Lawers. 



E. oihonnse, Richters (16). (Plate I. fig. 7.) 



Scottish examples usually have straight barbs on the outer claws of the last legs. 

 In Loch Earn examples the four little lateral spinules, as in E. spinulosus, 

 were seen. 



