22 D. BRYCE OS THE MACROTRACHELOUS CALLIDINiE. 



ing of one joint, is, in reality, a modificaMon of the two ultimate 

 trunk joints. 



Length — Extended about J-^ inch. 



Habitat — Among Sphagnum and other mosses. Epping Forest 

 and Isle of Wight. Common. 



Gallidina lata, n. sp. 



Sp. Gh. — Very short and broad, central portion of trunk much 

 flattened, broadest behind the middle, suddenly narrowing to 

 posterior segment. Dorsal skinfolds obsolete, lateral very deep. 

 When feeding posterior trunk segment about one-third width 

 of central portion. Foot slender, spurs slender, acute and of 

 moderate length without interstice. Wheels rather small, about 

 width of head. Food moulded into coarse pellets. Mastax 

 pyriform, three teeth on each ramus. Column furnished with 

 rather long cilia. 



The peculiar breadth and squareness of the central portion 

 of the trunk is usually apparent even in crawling. Occasionally, 

 however, a specimen will present, for a moment, the facies of a 

 ,Philodina. Incomplete retraction it assumes the form of a 

 broad ellipse whose greatest length is transverse to the body 

 axis. A rather small form, yet varying much in size, large 

 specimens about ^ ^-^ inch when extended. It crawls rather 

 slowly, yet with a slight gliding motion as described above. 

 I have thought that I could detect a few setae at tip of column 

 as well as the usual cilia. 



Habitat — Among Sphagnum and other mosses. Epping Forest? 

 Folkestone, and Isle of Wight. Scarcely so common as the 

 last. 



Gallidina spinosa, n. sp. 



Sp. Gh. — Longitudinal skinfolds and those marking trunk 

 segments armed with very short prickle-like points set closely 

 together, the angles marked with rather longer points. A 

 short spine on centre of ventral margin and a longer one at 

 each lateral angle of anterior edge of first trunk segment. 

 Spurs rather long and of peculiar shape, at first parallel, 

 they are bent outwards at a right angle and thence incurved, 

 so that each describes a J circle, the points being directed 

 downwards and backwards. 



I only found one specimen of this peculiar form ; it was ex- 



