Clare Island Survey — Acarinida. 39 9 



four or five spines along the inner distal margin, and a group of four pectinated 

 spines is placed at the extreme inner corner. The prominence on the third 

 segment is only moderately developed, and carries upwards of twenty long 

 spines, many of which are strongly pectinated. The lower half of the inner 

 surface of the fourth segment is crowded with numerous long bristles, while 

 on the outer side there is a row of nine or ten similar ones. 



The type-specimen of this interesting and well-marked species was found 

 in Ballinahinch Lake, Connemara, by Mr. W. F. de V. Kane in June, 1900. 

 It was not found in any of the lakes in the immediate vicinity of Clare 

 Island visited during the survey. No doubt more specimens will be forth- 

 coming when the larger lakes of Galway and Mayo have been more thoi oughly 

 searched for these mites. 



[I take this opportunity to figure (PL I., fig. 7) the eye-plate of Eylais 

 Koenikei Halbt., of which a specimen was found in a small lake at Aidfry, 

 county Galway, some years ago. This specimen is more fully developed than 

 the one from which the species was described. The eye-plate is much larger 

 measuring about 'SO mm. across both plates ; the length of a single plate is about 

 ■44 mm. The eye-bridge is long and narrow, with a circular muscle-attachment 

 in the centre, and the bristles springing from the hair-pores are of great 

 length. The lens-bearing plates are very characteristic in shape, being 

 somewhat quadrate in front, and distinctly sinuate on the inner margins. The 

 general surface is facetted with peculiar diamond-shaped markings, which are 

 very different from the usual sculpturing found on the eye-plates in this 

 genus. The lenses are large. 



The palps are long and slender (about 1'26 mm.). Second segment with 

 about seven pectinated spines on the distal margin ; the third is only slightly 

 swollen, with about eight stout spines at the apex ; the innermost ones are 

 distinctly pectinated; fourth segment with about ten long spines close to 

 the inner margin, a few of which are arranged in pairs ; on the outer side 

 there are seven long bristles. 



A figure of the capitulum will be found on the accompanying plates.] 



Sub-fam. Peotziinae. 

 Protzia eximia (Protz). (Plate I., fig. 8 a, b.) 



Stream on lower slopes of Croaghpatrick, June, 1905. 



A Protzia which I found in the above-mentioned locahty amongst aquatic 

 mosses is apparently to be referred to this species. 



The general shape of this specimen (length about T22S mm., breadth 

 •920 mm.) resembles that of Koenike's figures (12, fig. 45). The shoulders are 

 K. I. A. proc, vol. xxxi. B 39 



