376 MR JAMES MURRAY ON A NEW FAMILY 
Callidina crenata, n. sp. (Plate IV. figs. 6a to 6d.) 
Specific characters.—Small, colourless. Trunk and foot papillose. Head and neck 
smooth. Neck with a prominence on each side of the antenna. Teeth, seven or eight — 
in each jaw. Foot of three joints. A crenate boss on first joint. Spurs short, tapering, 
acuminate, divergent. Toes, three, Food moulded into pellets. Posterior margin of 
pre-anal segment with a rounded prominence, free from papille, on each side. 
Oviparous. 
Description.—Length ,!5 inch when fully extended. Rostrum short, with lamelle 
of moderate size. About twelve longitudinal folds on the trunk, at equal distances apart, 
not fainter dorsally. Papillee not crowning the folds, as in C. aspera, Bryce, but 
regularly distributed over the whole surface of the trunk, smaller than in C. aspera, 
rounded, without pits or pores, diminishing in size on the foot. Spurs dotted. Toes 
short, blunt. Egg elongate, narrowed at anterior end. 
This description is incomplete, as the animal was never seen to feed. Seen in the 
retracted state the discs are small and close together. The only other species which 
moulds the food into pellets, and at the same time has the skin papillose, is C. aspera, 
Bryce. From that it is distinguished by the more numerous teeth, smaller papille, 
and pre-anal processes. 
Habits.—Although fairly abundant in several collections, nothing could be learned 
as to its habits. All the examples studied were very sluggish in their motions. They 
crept about very slowly ; and though some of them were watched for long periods, they 
showed no disposition to feed. 
Habitat.—Among ground moss and hepatics from the shores of Loch Ness and 
elsewhere near Fort-Augustus, February 1904, frequent; not yet found anywhere 
else. 
Callidina pulchra, n. sp. (Plate IV. figs. 5a to 5f,) 
Specific characters.—Small, colourless. Trunk very broad, strongly stippled. — 
Corona narrower than neck or collar, with central setee on discs. First neck segment — 
with the anterior edge turned outwards like a rim all round. Rostrum short and broad, 
with a large brush of long cilia. Teeth, three to five in each jaw. Food moulded into — 
pellets. Foot short, of three joints. Spurs short, divergent, acuminate. Toes, three. 
General description.—Length about +45 inch when creeping, yyy inch when ~ 
feeding. Very short and broad. Skin not papillose, but covered with uniform large 
clear dots. Trunk longitudinally plicate ; dorsal folds faint, lateral deep. Stomach very — 
voluminous, filled with large pellets. 
Very similar to C. lata, Bryce, to which it is closely related. It agrees with that 
species in the breadth of trunk, the shape of the corona, the central setze on the discs, 
and the dental formula. It differs in the oval rather than ovate trunk, the stippled skin, 
the projecting edge of the first neck segment, and the shorter spurs. The shape of the 
