NEW SPECIES OF OCNERODRILUS. 285 



these walls being mised in such a way as to be cut through in au 

 eccentric section. 



V. vessels of the pouch, collecting in the longitudinal vessel, r. l. 



i. I. Interior lacunarj' sj'stem. 



<rs. oesophagus and tiibular intestine. 

 Fig. "20. 0. Beddardl. The semi-parallel vessels of the ct- sophageal diver- 

 ticulum. 



les. t\ oesophageal vessel. 



(7. V. collecting vessel. 

 Fig. 21. O. ocridvntaJit. Ovary and oviduct in somites xiii and xiv. 



ov. ovary. 



od. oviduct. 



s. septa. 

 Fig. 22. 0. occidentcdh. Septal gland of somite vi. 



(es. oesophagus. 



?«.'*. muscular bands. 

 Fig. 23. 0. Ros(t^. A collective and semi-schematic view of the anterior 

 part of the body in longitudinal section. 



•s. ph. gl. supra-pharyngeal ganglioa, 



si. gl. salivary glands of the pharynx. 



a. gl. septal glands in somites v, vi, vii and viii. 



■V. septa. 



s/tih. siJermatheca. 



s.s. /. lobed sperm-sacs in somites ix and xii. 



.s. .S-. sperm-saos in somites x and xi. 



s. /. sacculated intestine, beginning in somite xiii. 



rl. clitellum. 



(/. i\ dorsal vessel. 



V. V. ventral vessel. 



(/('/. diverticulum of the cesophagus in somite ix. 



i. testes. 



c. r. ciliated rosettes. 



or. ovary. 



od. oviduct. 



s/>. d. the widened or muscular pai't of the sperm duct. 

 5 . male papilla. 



jti. j>r. muscular jiart of the prostate gland. 



gl. f>r. glandular part of the prostate gland. 

 Fig. 24. <>. Roffv. Male papilla with sperm duct and prostate gland iu 

 somite xvii. 



m. ]>r. muscular part of the prostate gland. 



gl.pr. glandular part of the prostate gland. 



TO. sp. d. muscular part of the sperm duct. 



■<p. sperm duct. 



