Sarcoptiformes 



367 



Discussion: Cytodites nudus (Vizioli) is to be found in chickens in 

 the air sacks and respiratory system, in the body cavity in general, 

 among and on the surface of the hepatic lobes and similar places. The 

 presence of small numbers does not appear to damage the host, but 

 large numbers may be of some importance. They have been accused 

 of causing enteritis and peritonitis in fowl and can produce suffoca- 

 tion by being present in large numbers in the air passages and sacks. 

 Myers 1923 states that C. nudus brings forth living young with three 

 pairs of legs. 



Reference: 



Myers, J. G. 1923. The internal mite of the domestic fowl. New Zealand 

 J. Sci. and Tech. 6(1):59-61. 



Laminosioptidae Vitzthum, 1931 



Figure 297 



Diagnosis: Very small mites meas- 

 uring from 0.20 to 0.26 mm. in 

 length, the laminosioptids have an 

 elongated, slightly flattened figure. 

 Dorsally smooth, their skin has fine 

 striae in other regions. No vertical 

 setae appear on the propodosoma. 

 The body has a few long setae. The 

 gnathosoma is normal and not visi- 

 ble from above. The legs are short, 

 especially i and ii. Tarsi i and ii 

 lack both claws and caruncles; tarsi 

 III and IV have minute caruncles on 

 long stalks or pedicles. There are 

 no genital suckers, and the males 

 do not have adanal copulatory f(^"*^,. 

 suckers. 



297 Lam 



) . Venter 

 Hirst 1922) 



ino 

 of 



sioptes 

 female 



cysticola 

 . ' (After 



Genus: 



Laminosioptes Megnin, 1880 (= Symplectoptes Railliet, 1885) 

 Type. Sarcoptes cysticola Vizioli, 1870 



Discussion: Laminosioptes cysticola (Vizioli) is an internal parasite 

 of the fowl. In Europe it is to be found by the millions in the cellular 



