PLATE TI. 



Liiiriis scdtti, s|i. 11. 



Fio. I. — Ventral view of tlie anterior end of one of tlie smaller specimens, magnified, and showing the 

 mouth, cephalic slits, ))rol)oscis-pore, and the groove funning a " V " iniinediatelv in front of 

 the iiioiith. 



Fifi. 2. — Transverse section towards the middle of the liody. li.S.. lilood-siniis ; CM., circular muscle- 

 layer ; D.N., dorsal nerve : D.V., dor.saI hlood-ves.se] ; Gl., glandular layer of the integument ; 

 Int., intestine ; L.M'., inner longitudinal muscle-layer : L.M'^., outer longitudinal muscle-layer ; 

 L.N., lateral nerve-stem ; N.P., nerve-ple.xus : P.S., cavity of jirohoscis-shcatli. 



Fig. '■'<. — Portion of the outer part of the hody-wail in traiis\(5rso section, highly magnified. B.M., 

 (secondary) ba.sement-memhrane ; CM-., layer of circular muscle-tilires ; CT,, connective tissue 

 strands: Ep., external epithelium; (il., glaiidulir layer ; Gl-., glaii<l-cells of the ejiitheliuiii ; 

 L.M'-^., outer longitudinal muscles. 



Fi(i. 4. — Transverse section immediately behind the lirain. B.S., Llood-siiius ; CC, cerebral canals ; 

 CM., circular muscle-layer : CO., cerebral organ : D.N., dorsal nerve ; It.V., dorsal blood- 

 ve.ssel ; GL, glandular la3'er ; L.jNI'., inner longitudinal muscle-layer ; L.M'-., outer longitudinal 

 muscle-layer ; L.N., lateral nerve-stem pa.ssing outwards from the brain : P.S., cavity of 

 proboscis-sheath ; V.B.8., ventral portion of lilood-siiius. 



Fig. 5. — Transverse section through the middle region of the ln)dy of a female specimen. B.S., blood- 

 sinus : CM., circular muscle-layer ; D.V,, dorsal bloodvessel ; G., gonadial sac, tilled with 

 ova; Int., intestine ; L.M'., inner longitudiiiMl muscle-layer : L.M'-., outer longitudinal muscle- 

 layer ; P.S., cavity of 2>roboscis-sheath. 



Fio. 6. — Transverse section through the proboscis, highly magnilied. C, C, points where the circular 

 muscle fibres cross each other dorsally and \'entrally ; N., longitudinal nerves. 



