156 J. MURRAY 



colour might be associated with youth, but even the eggs of the type have dull 

 reddish contents. The double skin, with enclosed fluid and plates, is not regarded as 

 a specific character, although all the Canadian examples had it. It is possibly 

 pathological. The comma is also of uncertain value, though I believe generally 

 constant in a species. It remains for the discovery of the egg to decide the position of 

 the form. Although pretty abundant no eggs were found which might belong to it. 

 An almost identical form was found in Australia. 



Macrobiotus, sp. ? (Plate XIX. Figs. 41a, 416) 



An elliptical egg, with processes of the hufelandi type, and containing a young 

 with well-grown pharynx. The egg measures 90 M by 65 M over the processes, which 

 are about 6 /u in length. The processes are of the typical hufelandi form, but many 

 of them are divided at the ends, as in furcigir, orcadensis, and a variety of 

 intermedius. 



Teeth slender, curved outwards about the middle ; gullet of moderate width ; 

 pharynx shortly oval, with apophysis and two rods in each row, the first twice as long 

 as the second. The claws were not seen. 



B : EGGS UNKNOWN. 

 MacroUotus, sp. ? (Plate XIX. Figs. 42, 426). 



A hyaline form, of which the egg is unknown. The claws are of the hufelandi 

 type, but they are only joined for a short way above the base, and one of each pair 

 is much shorter than the other. 



The gullet is narrower than in hufelandii and has a prominent rim at its end in the 

 pharynx. The pharynx is shortly oval and has two rods and a comma in each row of 

 thickenings. The first rod is more than twice as long as the second, and has a 

 rounded projection near its base. The comma is very small. The apophysis was not 

 observed. Eyes present. Length 350 M- 



Without the egg the species cannot be identified. It has some affinity with 

 hufelandii, but has the claws united for a shorter distance, narrower gullet, and weaker 

 teeth. The form of the first rod seems distinctive. 



Macrobiotus, sp. ? (Plate XIX. Figs 43, 436). 



Pharynx like that of M. virgatus (p. 173), but with a comma. Claws different, 

 united at base only, unequal. 



REMARKS ON THE TARDIGRADE FAUNA or THE PACIFIC ISLANDS 



The interest of the Tardigrade fauna of these islands is chiefly geographical. 

 They have not yet yielded any peculiar insular -forms in this group, although in some 

 cases varieties may indicate peculiar insular races. 



