156 



Transactions. — Zoology. 



it be represented by a structure partially membranous par- 

 tially muscular which passes from the lower region of the 

 membrana-tympanica interna, on each side, to the wall of 

 the oesophagus. 



The only other muscle which exists in relation to the 

 syrinx in Notornis is the tracheo-bronchiahs, which is attached 

 to the side of the ring {cl). 



EXPLANATION OF PLATES XII., XIII, 

 Plate XII. 

 General View of the Viscera. 

 I. Intestine. 

 L.L. Left lobe of liver, 

 P. Pancreas. 



b.ic. Body-wall. 



c. End of one of the paired in- 



testinal CEECa. 



d. Portion of duodenum. 

 G. Gizzard. 



(j.v. Gastrohepatio vein. 



R.L. Right lobe of liver. 

 st. Stomach. 



Plate XIII. 

 Fig. 1. — Vieio of the Duodenal Loop, with Liver turned forwards. 



c.d. Cystic duct 



G. Gizzard. 



G^. Short continuation of gizzard. 



q.h. Gall-bladder. 



h.d. Hepatic duct. 



L.L. Left liver lobe. 



p.b. Basal portion of pancreas. 



Fig. 



p.d. Dorsal lobe of pancreas. 



po.v. Portal vein. 



p.v. Ventral lobe of pancreas, 



p.v'^. Free projection of same. 



p.v.d. Ventral pancreatic duct. 



py. Pylorus. 



s.l. Suspensory ligament. 



8.— Posterior Portio?i of Duodenal Loop, seen from the Dorsal 



Surface. 



c.d. Cystic duct. i p.d. Dorsal lobe of pancreas. 



p.b. Basal portion of pancreas. I p.d.d. Dorsal pancreatic duct. 



Art. XIX. — A Be-examination of Button's Types of Neiv 



Zealand Earthioorms. 



By W. Blaxland Benham, D.Sc. Lond., M.A. Oxon., 

 Professor of Biology in the University of Otago. 



[Read before the Otago Institute, 18th October, 1898.'] 



In the year 1876 Captain Hutton read before the Otago 

 Institute a paper entitled " The New Zealand Earthworms in 

 the Otago Museum,"" in which he described six new species 

 of earthworms, four of which he locates in the genus Lumbri- 

 cus and two in that of Megascolex. At that time — now more 



* Trans. N.Z. Inst,, vol, ix., p. 350, 



