290 



Liver. — As far as can be ascertained without removing the 

 organ, and by reference to a damaged specimen from another 

 Minimal, the liver consists of four distinct lobes, two large and two 

 small, the former being veritral, and separated by a deep fissure. 

 Of these, that on the left hand seems to correspond to the left 

 lobe of the human liver, and the other to the lobus quadratus ; of 

 the smaller lobes, that which is dorsal, and on the left (but still 

 to the right of the portal vein), probably corresponds to the 

 lobus Spigelii. The other small one probably represents the 

 human right lobe. 



Apparently no gall-bladder exists, but the parts being ratlier 

 decomposed in that region, I cannot be absolutely certain of this 

 fact. There are, however, two hepatic ducts uniting into a con- 

 siderable common bile-duct, which opens into the intestine 2-5 

 jnm. from the pylorus. 



Spleen. — This is an elongated flattened organ bent on the edge, 

 so that its shape resembles that of the letter V with mucli ex- 

 panded limbs. 



Myology. — This is being worked out by Professor Wilson, of 

 Sydney University, who will communicate his observations to 

 this Society. 



Concludo7i. — It is necessary for me again to remark that I am 

 but too well aware of many shortcomings in the above description, 

 nor can I hope to have escaped errors of commission as well as 

 of omission. Some points have been left obscure that undoubtedly 

 might have been cleared up by reference to fresh material, but I 

 was particularly anxious not to damage any more specimens than 

 I could help. The number of them in my possession is still 

 very limited, and I have been desirous in the interests of science 

 both that some should be available for examination by more com- 

 petent zoologists than myself, and that some other institutions 

 more accessible to the scientific world should share the good fortune 

 of the Adelaide Museum in possessing an example of an animal 

 which is at the same time very difiicult to obtain and of unusual 

 zoological interest. I trust, however, that enough of its structure 

 has now been made sutficiently clear to enable a correct conclusion 

 to be formed, both as to its natural affinities and as to the manner 

 in which this singular type — remarkable even in this land of 

 cui'ious and antique forms — should be classed. This discussion, 

 Jiowever, must be left to a future occasion. 



