58 Cobb — Nematodes, mostly Australian and Fijian. 



Cephalobus infestans. 



Fig. 1. Male worm. Fig. 2. Tail of same worm more highly magnified. Fig. 3. Anal region of a male. 

 Fig. 4. Neck and head. 

 a, male papilla ; h, male papilla ; c, male papilla ; d, male papilla ; e, left spiculum ; / accessory piece ; 

 g, lips ; h, base of the pharynx ; i, nerve-ring ; j, cardiac bulb ; k, intestine ; I, flexure in 

 testicle. 



Plate v. 



DORYLAIMUS EXILIS. 



Fig. 1. A female worm. Fig. 2. Tail of the same worm more highly magnified. Fig. 3. Cardiac region. 

 Fig. 4. Head. Fig. 5. An egg. 

 a, pre-rectnm; 6, rectum; c, anus; d, lips; e, spear; /, nerve-ring; g, vulva; h, oesophagus; i, 

 beginning of the intestine. 



DORYLAIMUS GRANULIPERUS. 



Fig. 1. A female worm. Fig. 2. Tail. Fig. 3. Cardiac region. Fig. 4. Head. Fig. 5. Portion of the 



body. 



o, tip of the spear ; h, papilla of the inner row ; c, papilla of the outer row ; d, papilla of the outer row ; 



e, intestine ; /, lateral field ; g, nerve-ring ; A, cardiac collum ; i, flexure in anterior ovary ; j, 



egg; h, vulva; I, blind end posterior ovary; m, pre-rectum ; n, anus; o, oesophagus near 



posterior end ; jy, beginning of intestine ; q, rectum ; r, anus. 



DORYLAIMUS OBTUSUS. 



Fig. 1. Young female worm. Fig. 2, Tail. Fig. 3. Head and anterior part of the neck. Fig. 4. Tail. 

 Fig. 5. Head, 

 a, spear ; 6, lips ; c, pre-rectum ; d, anus ; e, intestine ; /, pre-rectum ; g, anus ; A, nerve-ring ; i, nerve- 

 ring ; y, immature female sexual organs ; h, anus ; Z, oesophagus. 



DORYLAIMUS PBRPECTUS (1). 



Fig. 1. Female worm. Fig. 2. Head and neck of the same worm. Fig. 3. Tail. Fig. 4. Head. 



a, tip of the spear ; 6, one of the inner row of papillse ; e, one of the outer row of papillae ; d, base of 

 the lips ; e, nerve-ring ; /, intestine ; g, pre-rectum ; A, egg ; i, vulva ; ^, anus. 



Plate vi. 



DOKYLAIMUS PBRPECTUS. 



Fig. 1. Male worm. Fig. 2. Anterior part of the neck of the same worm. Fig. 3. Tail end of the male 

 shown in Fig. 1. Fig. 4. Anal region. Fig. 5. Spiculum. Fig. 6. Portion of intestine. 

 a, nerve-ring ; h, oesophagus ; c, intestine ; d, intestine ; e, blind end of anterior testicle ; /, pre-rectum ; 

 g, left spiculum ; h, anus ; i, blind end of posterior testicle ; j, anus ; h, papillae ; I, junction of 

 the testicles ; jn, spear ; n, guiding-collar for spear ; o, intestine ; f, ventral row male papillae ; 

 q, pore ; r, papillae ; «, gland ; t, nerve-ring ; u, spiculum ; v, oblique copulatory muscles ; w, 

 oblique copulatory muscles ; x, oesophagus where it enlarges ; y, tessellation of the intestine ; %, 

 a spiculum. 



