Coss—Nematodes, mostly Australian and Fijian. 307 
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 ; b, male papilla; ¢, male papilla; d, male papilla ; ¢, left spiculum ; f, accessory piece ; 
g, lips; h, base of the pharynx; 7, nerve-ring; j, cardiac bulb; &, intestine; /, flexure in 
testicle. 
. PLATE Xt: 
DoryYLAIMUS 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-rectum ; 6, rectum; c, anus; d, lips; e, spear; f, nerve-ring; g, vulva; h, cesophagus ; @, 
beginning of the intestine. 
DoRYLAIMUS GRANULIFERUS. 
Fig. 1. A female worm. Fig. 2. Tail. Fig. 3. Cardiac region. Fig. 4. Head. Fig. 5. Portion of the 
body. 
a, tip of the spear ; 6, papilla of the inner row ; ¢, papilla of the outer row ; d, papilla of the outer row ; 
e, intestine; f, lateral field; g, nerve-ring ; h, cardiac collum; 7, flexure in anterior ovary ; Jj, 
egg; k, vulva; 7, blind end posterior ovary; m, pre-rectum; mn, anus; 0, cesophagus near 
posterior end ; p, beginning of intestine ; q, rectum ; 7, anus. 
DoryYLAIMUS 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; b, lips; ¢, pre-rectum ; d, anus; e, intestine; f, pre-rectum ; g, anus; h, nerve-ring ; 7, nerve- 
ring; j, immature female sexual organs; &, anus; /, cesophagus. 
DorYLAIMUS PERFECTUS (7). 
Fig. 1. Female worm. Fig. 2. Head and neck of the same worm. Fig. 3. Tail. Fig. 4. Head. 
a, tip of the spear ; 0, one of the inner row of papille; e, one of the outer row of papille ; d, base of 
the lips ; e, nerve-ring ; f, intestine ; g, pre-rectum; fh, egg; 7, vulva; J, anus. 
PLATE XL. 
DoryYLAIMUS PERFECTUS. 
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 ; b, esophagus ; ¢, intestine ; d, intestine ; e, blind end of anterior testicle ; f, pre-rectum ; 
g, left spiculum ; h, anus ; 2, blind end of posterior testicle; 7, anus; /, papille ; /, junction of 
the testicles ; m, spear ; n, guiding-collar for spear ; 0, intestine ; p, ventral row male papille ; 
g, pore ; 7, papille ; s, gland; ¢, nerve-riog; uw, spiculum ; v, oblique copulatory muscles; w, 
oblique copulatory muscles ; x, esophagus where it enlarges ; y, tessellation of the intestine ; 2, 
a spiculum. 

