140 PROCEEDINGS OF SOCIETIES. 
last joints had a rounded, club-like extremity; in others they 
were singularly short and stout. The palpi and parts about the 
mouth were not well defined with a high power. In some a faint 
line extended across the body between the third and fourth pair 
of legs. 
Professor Westwood exhibited a species of Acarus that had 
been found in the unopened buds of the black-currant tree, and 
sent him for examination. He stated that, inasmuch as the animal 
only possessed four instead of eight legs, the number proper to 
the Acari, he was in doubt whether it was merely an undeveloped 
form (which would account for the absence of some of the legs), 
or really a fully grown four-legged species. 
He also showed some small pieces of wood from a dog-kennel 
which were riddled with holes. In these holes were contained, in 
great number, the ova and six-legged young of the dog-tick. 
