4 Transactions <>/' the Society. 



PhUodina rugosa Bryce (J/). 



This is the most frequent member of the genus in washings of 

 mosses, and it occurs almost constantly in collections from tropical 

 and sub-tropical countries. Abundant. 



PhUodina sp. Plate I. figs. 3a-3e. 



A very remarkable species. I found it in Mr. Allan's moss, 

 and figured and described it as a new species for inclusion in this 

 paper, when I learned from Mr. Bryce that it had been previously 

 found in South Africa by Mr. Milne. I have let the figure remain, 

 as it was already drawn on the plate, and give a brief descrip- 

 tion here, while awaiting Mr. Milne's name. 



Description. — Large and very stout ; length, when feeding, 

 400 [x ; diameter of corona, 150/a; neck, 80 ll; trunk, 140 /t; across 

 spurs, 35 jx. Disks large, and sulcus as wide as disk ; central peg- 

 like papillae on disks. Eostrum broad, lamella? separate. Antenna 

 moderate. Jaws large, 40 /x long, with four or five teeth in each. 

 Segments of trunk deeply constricted and plicate. Foot, 4-jointed ; 

 spurs, thick cones, separated by wide interspace. No eyes. 



The most remarkable feature about this animal is its almost 

 perfect mimicry of Mniobia russeola. It has the same stout figure, 

 large corona, wide sulcus, peg-like central papillae, spurs, numerous 

 teeth, and red colour. Only the toes distinguish it. The differ- 

 ence between four or five teeth and six or seven teeth is not 

 striking at a casual glance. Unless the toes happen to be noticed, 

 it is very likely to be recorded as russeola. Abundant. 



Pleuretra alpium Ehr. (10). 



Synonym : Gallidina alpium. 



There is a form of Pleuretra which is common in warm climates, 

 and differs conspicuously from the type, and which 1 yet hesitate 

 to separate, on account of the absence of salient features. It 

 differs from the type in its small size and lack of the warm brown 

 colour. In size and colour it is like P. humerosa, yet it differs still 

 more from that, having fewer transverse ventral folds, and lacking 

 the peculiar characters of rostrum and face which distinguish that 

 species. The spurs are slender, straight, parallel, and separated by 

 a wide interspace." 



Pleuretra brycei Weber (%o). 

 Synonym : Callidina brycei. 



Variety : distinctive characters. — Main dorsal row of processes 

 consisting of eight blunt conical knobs and two low rounded knobs 



