Benham. — On Earthworms. 



129 



List of Reference-letters. 



bl. Muscular bladder of nephri- 

 dium. 

 hue. Buccal region of gut. 



cl. Clitellum. 

 cop. Sac with the copulatory 

 chsetse. 

 d. Musoular duct of sperma- 

 theca. 

 div. Diverticulum of sperrua- 



theca. 

 d.ne. Dorsal nephridium. 

 d.v. Dorsal blood-trunk. 

 /. Funnel, of nephridium 

 (fig. 6), of sperm - duct 



(fig- 7). 

 g. Gizzard. 



gl. (Esophageal gland. 

 h. Heart. 

 i. Intestine. 

 i.h. Enteric heart, arising from 

 supra-enteric vessel, 

 L. Lateral couple of chsetse. 

 I.h. Lateral heart, arising from 

 dorsal blood -trunk. 



l.v. Longitudinal lateral vessel. 

 vi. Pore of 3perm-duct. 

 N. Ventral nerve-cord. 

 ne. Nepbridiopore. 



o. Ovary. 

 od. Oviduct. 

 oe. Oesophagus. 



p. Opening of spermiducal 

 gland on porophore. 

 ph. Pharynx. 

 pro. Prostomium. 



s. Copulatory sac of sperma- 

 theca. 

 si.v. Supra-enteric blood-vessel. 

 sp.d. Sperm-duct. 

 sp.gl. Spermiducal gland. 

 sp.s. Sperm-sacs, or seminal 



vesicles. 

 sptk. Spermatheca. 



t. Coil of nephridial tubules- 



(fig. 6), testis (fig. 7). 

 V. Ventral couple of ehsetse. 

 v.ne. Ventral nephridium. 

 v.v. Ventral blood-trunk. 



Art. VIII. — On some Earthworms from the Islands around 



New Zealand. 



By W. Blaxland Benham, D.Sc, M.A., F.Z.S., Professor 

 of Biology in the University of Otago. 



[Read before the Otago Institute, 13th November, 1900.] 



Plates II.-IV. 



Our knowledge of the earthworms of the South Island of 

 New Zealand is now fairly extensive, thanks to the work of 

 Mr. F. E. Beddard, to whom material was sent from time to 

 time by the late Professor Parker and Mr. W. W. Smith ; but 

 we know very little as yet of the worms of the North Island 

 and of the outlying islands. 1 have been fortunate in obtain- 

 ing material from various friends, and am working upon this 

 material. In the present communication I will concern 

 myself with worms from the Snares (lying south of New Zea- 

 land), the Macquaries (still further south), and the Chatham 

 Islands (on the east of the southern portion of New Zealand). 

 During a recent trip to the Macquarie Islands Dr. D. 

 Colquhoun thoughtfully collected, on the Snares and Mac- 

 quaries, some earthworms and preserved them in formol, and 

 most kindly handed them over to me. To him my thanks are 

 9 



