1909. ] OF BIRDS ALLIED TO THE GROUSE. 369 
III. Bowasta sytvestris. The Hazel-hen. 
Tetrao bonasia Linn. 
NEMATODA., 
(1) Heterakis papillosa (Bloch). 
v. under Lagopus mutus, p. 364. 
(ii) Heterakis perspicillum (Rud.). 
Synonyms. Ascaris gallopavonis Gmelin 1789. 
Fusaria refleca Leder 1800 pro parte. 
Fusaria strumosa Geder 1800. 
Ascaris perspicillum Rud. 1803. 
Ascaris gihbosa Rud. 1809. 
Ascaris infleca Rud. 1819 pro parte. 
Ascaris funiculus KE. Deslongchamps 1824. 
Heterakis inflecu Schneider 1866. 
Under the last synonym this worm has recently been recorded 
from the alimentary canal of a Russian Hazel-hen by Wolffhiigel*. 
The males measure 3-8 ems., the females 6-12 ems. The worm is 
common in fowls, guinea-fowls, and turkeys, and gives rise to 
severe epizootics amongst poultry. Occasionally they are found 
free in the body- cavity, and sometimes occur in eggs, having 
made their way into the ovum before the shell is deposited. 
(i) Milaria bonasie (v. Nordmann). 
This form apparently has been seen but once. It was found by 
v. Nordmann in the posterior chamber of the damaged eyes of a 
Hazel-hen taken in the island Wikari. 
CESTODA. 
Ga) Tenia bonasie (Miller). 
This tape-worm is recorded from the intestines, but practically 
nothing is known about it. 
TV. Terrao terrix L. Blackeock. 
NEMATODA. 
G) Trichosoma longicolle (Rud.). 
This is the worm (or one of them, more than one species may 
be included in Rudolphi’s original description) described by 
Rudolphi. It occurs in the fowl, pheasant, and grouse as well as 
in blackgame, v. p. 345. 
(ii) Heterakis compar (Schrank). 
v. p. 364. 
* “ Beitrag zur Kenntniss der Vogelhelminthen,” Inaug.-Diss., Freiburg i. B., 1900. 
+ Miller, Arch. Naturg. 1897, p. 10, and Stossich, “‘ Glasnik. Naravos]. druzt.” 
1887, p. 287. 
