Siiiiplektopti's Cysticula. 83 



invasion there may be severe bronchitis with the formation of so much 

 secretion that death may occur from suffocation (Megnin). Rosencrantz 

 (B. t. W., 1909, 757) saw numerous fatal cases exclusively among 

 cachectic adult chickens in whose peritoneal cavity there were innumer- 

 able sarcopteslike mites ; inflammatory changes were however absent. 



The disease cannot be diagnosticated from its clinical symptoms 

 as long as the birds are alive. An effective treatment is unkno^\^l. 

 Inhalations of tar or iodine vapors might sometimes be tried. 



Symplektoptes cysticola. Kasparek saw an enzootic among pigeons 

 caused by Symplektoptes cysticola. In distinction to previous references, 

 according to which symplektopes lives only in the subcutaneous tissue, 

 it caused in Kasparek 's cases an inflammation of the air passages, 

 progressive inflammation and finally death of the animals. The mite- 

 like parasites were found in the air passages; also yellowish, whitish, 

 elongated nodules in the lungs, each containing one parasite. 



Literature. Kasparek, D. t. W., 1907, G2.3. 



