ON NEW OR LITTLE-KNOWN ACARI. 



361 



Yell Sound, Ollaberry, North Mavine, Shetland Islands : Little 

 Roe Island (13. ii. 1913). Specimens collected by James 

 Waterston. 



Text-figure 5. 



ffliinon.yssits nrgleetus, sp. n., $ • Ventral view. 



Rhinonyssus coniventris Trouessart. (Text-tigs. 6 & 7.) 



2 . A bdomen elongated (conical ). Anterior spinules on venter 

 similar to those present in E. neglectus, etc. There is also a pair 

 of spinules situated not far behind the gen ito- ventral plate and 

 two pairs of minute spinules or tubercles near the anal orifice. 

 Legs. Last pair of legs greatly enlarged and furnished with very 

 strong spinules. 



c? . Fourth leg about as long as the first and not much stouter. 



Length, $ ,1*45 mm. 



Habitat: Nasal cavities of the Turnstone (Strepsilas interpres) ; 

 North Roe. Mainland, Shetland. Specimens collected by James 

 Waterston (27. ii. 1911). 



