412 MR. E. G. BOULENGER ON THE 



Replaced in deep water. 



Stage 5. February 18th. 



,, 6. February 25th. 



„ 7. March 3rd. 



„ 8. March 10th.— Length 129 mm. 



/Speci7ne7i jyo. 7 . 



Placed in shallow water at a temperature of 75°~80°. 



Stage 1. October 7th. — Length 98 mm. 

 ,, 2. October 31st. 

 ,, 3. November 25th. 



Died January 29th. — Length 98 mm. 



Speciinen No. 8. 



Placed in shallow water at a temperature of 55°--60°. 



Stage 1. October 7th. — Length 96 mm. 

 „ 2. October 20th. 

 ,,3. November 10th. 

 ,, 4. January 3rd. 

 ,, 5. January 10th. 

 ,, 6. January 19th. 

 ,, 7. January 27th. 

 „ 8. February 4th. — Length 91 mm. 



Total length of period — 16| weeks. 



Specimen No. 9. 



Placed in shallow water at a temperatui-e of 55°-60°, and 

 replaced in deep water as each successive stage was reached. 



Stage 1. October 7th. — Length 117 mm. 

 „ 2. October 25th. 



Replaced in deep ivater. 



„ 1. November 5th. 



Replaced in skalloio toater. 



„ 2. November 20th. 

 „ 3. December 26th. 



Replaced in deep ivater. 



„ 2. January 10th. 



Replaced in shallow water. 



,, 3. January 25th. 

 „ 4. February 28th. 



