252 Janet W. Raff : 



8, but swollen in 9-17. There are simple vascular swellings in 

 9-12 and 16-17, but in 13, 14 and 15 they form calciferous 

 glands, paired in 13 and 15, but irregular in 14 [Fig. 2]. They 

 are not separated from the median canal by a duct, but are like 

 large vascular swellings constricted at different places. Large 

 intestine at its anterior end has a small lumen, and is slightly 

 constricted at each septum. After about segment 25 it is wider, 

 and not constricted at the septa. 



(b) Microscopic. — Oesophagus as far as segment 12 is of the 

 usual type. The calciferous glands have thin walls and are 

 very vascular. There is scarcely any muscular tissue, and the 

 peritoneal layer is flat. The lining is drawn into long thin 

 folds. The structure of the gland in segment 14 is represented 

 in Fig. 2. 



6. — Dipopochaeta bakeri, Fletcher. 



Perichaeta bakeri, Fletcher. Proc. Linn. Soc. N.8.W., 

 vol. ii., 1897. 



Plate LL, Fig 15. 



(a) Macroscopic. — Buccal cavity and pharynx 1-3. Crop in 4. 

 Gizzard in 5. Oesophagus is simple in segments 6, 7 and 8, 

 and dilated in 9-14, dilatations being largest in 12-14. It is 

 simple in 15 and 16. 



Large intestine begins in 17. 



This description differs slightly from that given by Mr. 

 Fletcher. 



(b) Microscopic. — Resembles M. dorsalis. The oesophagus in 

 segments 15 and 16 has a ciliated lining. 



7. — Diporochaeta tanjilensis, Spencer. 



Perichaeta tanjilensis, Spencer. P.R.S. Vict., 1892. 



Plate LL, Fig. 16. 



(a) ;l/flrro.sro7?z>.— Buccal cavity and pharynx in 1-3. Crop in 

 4. Gizzard in 5. Oesophagus in segments 6-16, being simple in 

 6-8 and dilated into vascular swellings in 9-16. Large intestine 



