148 J. MURRAY 



LIST OF SPECIES 



Macrobiotus areolatus, Murray ? 

 M. nodosus, Murray. 

 Macrobiotus, sp. ? 



Macrobiotus areolatus, Murray ? (19) (Plate XIX. Fig. 40) 

 See description of M. areolatus on p. 167 of this paper 



The identification rests on the egg only, and as the egg is by no means typical 

 there is much room for doubt as to the species. The egg is considerably smaller, 

 measuring only about 70 /* in diameter, exclusive of the spines. M. areolatus 

 measures about 100 n without the spines. The processes also differ in form, being 

 ovate and subobtuse, while those of areolatus type are conical and acuminate. They 

 measure only about 12 n, while those of the type attain to 50 n in length. 



The surface of the shell, between the processes, is marked by chambers or areoltc 

 like those from which the type was named, but these are more rounded and scarcely 

 polygonal at all. It is on this character that the provisional identification is made. 

 It is more probable that the egg belongs to a related species not yet recognised, 

 perhaps to that found associated with it, and described below (figured on Plate XIX. 

 Fig. 43). 



Macrobiotus nodosus, Murray (20) 



The only abundant species in the collection from Fiji. Young and old were seen, 

 and skins containing the reddish brown eggs. One of these, containing three eggs, 

 measured 400 n, the eggs 68 /". The largest animals were as large as African 

 specimens (500 n and upwards). The claws were 30 A* in length. 



The newly hatched young of 160 ju in length were hyaline and colourless, or very 

 faintly yellow. The characteristic knobs were not developed, and the papillae were 

 wide but very obscure. The pharynx has the thickenings much shorter than in 

 the adult. They are as broad as long, and somewhat quadrate. 



The empty skins lose the papillae, but show their position by a regular reticulation. 

 Seven eggs were seen in one skin. 



The occurrence of M. nodosus in mid-Pacific is very interesting. The species is at 

 present known in Africa, New Zealand, and the Macquarie Islands. 



Macrobiotus, sp. ? (Plate XIX. Figs. 43a, 



A fairly large animal, nearly 500 n in length. It is pigmented with a dull brown 

 colour like that of M. Imfelandii. The teeth are stout and the gullet wide. The 

 pharynx is shortly oval, and contains, besides the apophyses, three short thick rods 

 in each row, and a large comma. The middle rod is a little shorter than the two 



