40 



NATURAL SCIENCE 



[July 



the name of MaruTco, Chosen, or Eanchu (Fig. 1). The body is short, 

 round, or sometimes ovoid. It is not compressed laterally, the 

 dorsal median part being flat. Scales few and irregular in number, 

 and large in size. The head is large, short and round, and some- 

 times has many warts on it, as in the following variety. The dorsal 



5^ *, 



fin is wanting, while the caudal fin is very large. The eyes are also 

 large. This variety does not attain a large size, seldom exceeding 

 six inches in the total length. It is very weak, so that great care 

 is required for its culture. 





" J 



Next in beauty and fancy is the variety known by the name of 

 Shishigashira, Onaga, or Oranda (Fig. 2). This variety is char- 

 acterised by the short and ovoid body, the presence of many warts 

 on the head, and enormous development of the fins. The caudal 

 fin is especially well- developed, being longer than the body. It is 



