Cobb — Nematodes, mostly Australian and Fijian. 59 



DORYLAIMUS LONGICOLLIS. 



Fig. 1. A young worm. Fig. 2. Female, nearly adult. Fig. 3. Head and anterior part of the neck. Fig. 4. 

 Tail. Fig. 5. Vulva and vagina. Fig. 6. Portion of the body. 



a, nerve-ring; 6, oesophagus; c, anus; d, anus; e, blind end of ovary; /, vulva; g, nerve-ring; Ti, 

 cardiac collum ; i, anus ; j, pre-rectum ; k, intestine ; I, lateral field ; m, vagina ; w, vulva ; o, 

 lips ; y, spear ; q, nerve-ring ; r, cesophagus where it enlarges. 



Plate vii. 



Aphelenchus longicaudatus. 



Fig. 1. A female worm. Fig. 2. Anal region of a male. Fig. 3. Head and neck. Fig. 4. Region of the 

 vulva. 



a, lips ; 6, base of spear ; c, bulb ; d, excretory pore ; e, bulb ; f, excretory pore ; g, nerve-ring ; h, 

 right spiculum ; i, accessory organ ; j, anus ; It, egg ; Z, vulva ; vn, anus ; n, egg ; o, vulva. 



Tylenchus similis. 



Fig. 1. Head and neck. Fig. 2. Portion of the body. Fig. 3. Tail of a male. Fig. 4. Male worm. Fig. 5. 

 Anal region of a male. 



a, spear ; 6, bulb ; c, excretory pore ; d, striae ; e, intestine ; /, bursa ; g, spicula ; h, bursa ; i, tips of 

 the spicula. 



Tylencholaimus ensiculipbeus. 



Fig. 1. Immature female. Fig. 2. Posterior part of the neck. Fig. 3. Anterior part of the neck. Fig. 4. 

 Tail. 



a, tip of the spear ; 6, narrow part of the shaft of spear ; c, wider part of the shaft of spear ; d, base of 

 the spear ; e, base of the spear ; /, tube leading to bulb ; g, bulb ; \ intestine. 



Tylenchus multicinctus. 



Fig. 1. A male worm. Fig. 2. Neck and head. Fig. 3. Small portion of the body. Fig. 4. Head. Fig. 5. 

 Tail of a male. Fig. 6. Tail of a male. Fig. 7. Tail of a female. 



a, spear-guide ; h, base of spear ; c, chitinous tube leading to bulb ; d, median bulb ; e, nerve-ring ; /, 

 excretory pore ; g, cardiac bulb ; A, intestine ; i, proximal ends of spicula ; j, shaft of spiculum ; 

 h, accessory piece ; I, lateral wings ; m, bursa ; n, anus ; o, proximse of spicula ; p, points of 

 spicula ; q, bursa. 



