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Stewart, F. H. (1917). On the development of Ascaris lumbricoides Lin. and Ascaris 
suilla Duj. in the rat and mouse. Parasitology, ix. 215. 
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lii. 272. 
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LEGENDS TO TEXT-FIGURES. 
Figs. 1-8. Ascaris suilla Dujardin. 
Fig. 1. Larva 19 days after hatching, from the intestine of the pig. Head. 
Fig. 2. Larva 19 days after hatching. Transverse section through the lateral line and lateral 
membrane, 0-68 mm. from the anterior extremity. 
Fig. 3. Larva 19 days after hatching. Transverse section through the lateral line, 1*1 mm. from 
the anterior extremity. 
Fig. 4. Larva 19 days after hatching, from the intestine of the pig. Transverse section 0-35 mm. 
from the anterior extremity. 
Fig. 5. Larva 4 days after hatching, from the liver of the mouse. Transverse section through the 
oesophageal region. 
Fig. 6. Larva 5 days after hatching, from the liver of the rat. Transverse section through the 
intestinal region. 
Fig. 7. Larva 6 days after hatching, from the lung of the mouse. Transverse section through the 
intestinal region. 
Fig. 8. Embryo after incubation of the egg for 35 days, artificially hatched. Anterior portion of 
the body. 
LETTERING. 
e.c., excretory canal, d.l., dorsal line, d.p., dorsal papilla, l.c., lateral canal. I.I., lateral 
line, l.m., lateral membrane, n.ex., nucleus of excretory cell, o., oesophagus, o.b., oesophageal 
bulb, r.l.l., right lateral line, s.c., subcuticle. s.Jc., skeletal rod. s.v.p., subventral papilla. 
v.l., ventral line. 1, external layer of the cuticle. 2, midlayer of the cuticle. 3, internal layer of 
the cuticle. 
