692 MR JAMES MURRAY ON 
It is ditticult to imagine how the eggs can be deposited in the skin while it remains 
attached to the head, so that one is tempted to suppose that the moult is completed in 
the usual way, and the skin picked up again afterwards; but this has not been seen. 
The egg measuring 34, inch (67), produced a larva ;1¢ inch (142) long. The 
pharynx was 7;/;5 inch (24) long. There was no trace of eyes nor of papille on the 
skin or supplementary points to the longer claws, but otherwise the form was as the 
adult. 
Size, about ;!5 inch (417) or larger. Having some resemblance to M. granulatus 
—Ricurers (10), which has, however, claws of quite different structure. The supple- 
mentary points of the longer claws of each pair are much more distinct than is usual in 
species having smooth eggs. 
Habitat.—Bog pool at Fort Augustus, very abundant; margin of Loch Morar, 
rare, 1904. 
Macrobiotus papillifer, nu. sp. (Plate IIT. figs. 15a to 15c.) 
Specific Characters.—Hyaline, two black eyes. Back and sides covered with conical 
acuminate processes, arranged in transverse and longitudinal rows. Similar processes 
on the head, or lacking. Teeth strong, curved, with bearers. Pharynx nearly as broad 
as long, with three equal thickenings in each row, which are about twice as long as 
broad. Claws, two nearly equal pairs, one claw of each pair longer. 
Length, up to +45 inch (250 microns). Eggs laid in the cast-off skin. Five eggs 
were laid in one skin, the animal being seen to leave the old skin by the anterior end. 
Halitat.—Loch Ness, common; Loch Morar, rare. 
This species is comparable with 1. tuberculatus—PuatE (5). The processes are more 
numerous and of different form; but this would not justify its separation, if we had 
not a more reliable character in the relatively large pharynx, with three short rods in 
each row of thickenings. PLATE says that there are only two rods in each row in J, 
tuberculatus, though his figure shows three. 
SCOURFIELD, who has seen M. tuberculatus, regards this as distinct. 
Macrobiotus oberhduseri—Doy. (8). 
Specific Characters.—Dorsum, with nine transverse bands of a brown colour. 
Pharynx, small round, with three short oval thickenings in each row. Claws, one pair 
and two single claws. Hggs laid in the cast-off skin. 
Various diverging if not conflicting diagnoses of this species are given by ditterent 
authors, and it is probable that different species have been confused together. An 
animal having the transverse bands of colour and small pharynx was observed in Loch 
Ness, but it had not the two free independent claws which, according to Prats, this 
species should have. This probably indicates only different interpretations of the 
structure of the slightly united larger pair of claws. 
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