On the Physical Aspects of the Liao Basin. 263 



Culter Sieholdii. from the Amur, seems to me to be the same 

 fish. 



Coilia nasuSf Schleg. 



Vernacular name : Tao yu. 



It may appear doubtful whether Basilewsky's Osteo- 

 glossum prionostoma should be referred to this species or to 

 Coilia ctwpeoides. 



Chatoessus punctatuSj Schleg. 

 Vernacular name : Hat chi yu. 



Harpodon nehereus, H. B. 

 Vernacular name : Mien tiao yu. 



Anguilla hostoniensis^ Les. 



Vernacular name : Shan yu. 



The eel in Dr. Morrison's collection shows the technical 

 characters of the form " bostoniensisj^ although also Anguilla 

 vulgaris and A. mauritanica have been brought from China. 

 ]t will always be doubtful to which of these forms Basi- 

 lewsky's A. pekinensis should be referred. 



TrygoUy sp. 



A young specimen, without tail. 

 Vernacular name : Yang yu. 



EXPLANATION OF PLATE XIII. 



Fig. A. Opsariichthys Morrisonii. 

 Fig. B, bidens. 



XLIII. — Notes on the Physical Aspects and on the Food-Fishes 

 of the Liao Basin, North China. By W. MOEEISON, M.D. 



At the request of Dr. Giinther I offer herewith a few notes, 

 supplementary to the preceding paper, on the physical aspects 

 of ihe Liao basin and on the food-fishes of Newchwang, some 

 of which are not included in the collection made for me by 

 H.M. Consul, Mr. A. Hosie, and described by Dr. Giinther. 

 The chief source of the Liao River is in Mongolia, near 

 the southern termination of the Kinghan range of mountains, 

 in lat. 43° 30' N. and long. 118° E. During its course 



