54 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
a. anus, app. appendage or tail, d.¢. dorsal ciliated 
funnel, ec. ectoderm, ep.p. epipharyngeal ciliated groove, 
en. endostyle, gl. glandular cells in left side (cardiac sac) 
of stomach, h. heart, hy.p. hypopharyngeal ciliated ridge 
or groove, 7. intestine, m. mouth, mes. connective tissue, 
n. caudal nerve (posterior part of myelon), 2.ch. notochord 
(urochord). .s. nervous system (cerebral ganglion and 
anterior part of myelon, ws. cesophagus, ov. ovary, 0.g. oral 
glands, o.c. otocyst, o.d. oviduct, ph. pharynx, (branchial 
sac), p.p. peripharyngeal ciliated bands, 7. rectum, st. 
pyloric sac of stomach, st’. cardiac sac, sp. lobes of testis, 
t. test, sg. stigma leading to atrial pore. 
Prarie 
Fig. 1. Section 8 (from posterior end) showing ovary 
and lobes of testis. ) 
Fig. 2. Section 22, showing separation off of dorsal lobe 
of ovary. 
Fig. 3. Section 35, immediately behind the alimentary 
canal. 
Fig. 4. Small part of ovary from last section more highly 
magnified (x 600). 
Fig. 5. Small part of testis from last section highly mag- 
nified (X 600). 
Fig. 6. Section 48, showing posterior end of stomach. 
Fig. 7. Section 54, showing stomach and cesophagus. 
Fig. 8. A part of surface of section 54 more highly mag- 
nified (x 600). 
Fig. 9. Section 61, showing parts of alimentary canal, 
and nerves. 
Fig. 10. Section 71, showing cesophagus opening into 
stomach. 
