
JOHNSTON AND MAWSON—AVIAN AND FISH NEMATODES 549 
the body, 132». Bacillary bands are absent. The ratio of the lengths of the 
oesophageal and intestinal parts of the body is 1:3-7. The vulva lies just behind 
the oesophagus, The eggs (fig. 1) are thin-shelled, and measure 50p by 2p, 
The worms do not agree with C. pomatostemi J. and M., 1945 (differing in the 
size of the eggs and in the ratio of the body parts); nor with C. graucalina 
J. and M., 1941 (differing in ege size); nor with C, grallinae J, and M., 1945 
(which differs in the ratio of the body parts). 
CAPILLARIA LARICOLA (Wassilkowa), 
(Fig. 2.) 
One female Capillariid worm was taken from a gull, Larus novachollandiae. 
Tts measurements fall within the limits given by Freitas and Lent (1935) in their 
redescription of ©, laricola (Wassilk., 1980), The total length is 14+7 mm.; the 
breadth at the head 14y, at the base of the oesophagus 76u, and at the widest part 
99 (which is rather narrower than has been stated for the species). The eggs are 
60p by 30p,, and are smooth-shelled, without prominent polar plugs. Bacillary 
bands are present. 
CAPILLARIA TANDANT Johnston and Mawson 1940. 
(Fig. 4.) 
This species was originally described from four females from the eatfish, 
Tandanus tandanus, In the present collection a male worm is present, It is 
3-3 mm. long. The posterior end of the oesophagus is indistinct, so that the 
ratio of the anterior to the posterior part of the body is uncertain, The breadth 
at the head is 10z, and at the widest part of the worm, 54u, The stout spicule is 
225, long. The spicule sheath, partly everted and obscuring the bisa, is markedly 
annulate. A fieure of the wrinkled egg shell is given (fig. 3). 
CAPILLARIA PLECTROPLITES J. and M. 1940, 
(Fig. 3.) 
From Plectroplites ambiguus. The species was originally deseribed from 
females from this host species, and male worms from Perealutes colonorum were 
also referred to C, plectroplites, In the present collection are males and females, 
the males agreeing with those described from P. colonorum. The spicule sheath is 
not spinous. Two bacillary bands are present, each consisting of two rows of 
sparsely scattered papillae. 
