1 66 WOTTON : LIFE-HISTORY OF ARION ATER. 



The young Arions were placed in these boxes at the latter 

 end of February, 1890. On the 30th April one died, and on 

 the 8th June a second followed its unworthy example, and I had 

 to confine my attention to the sole survivor, which fortunately 

 lived and thrived and we became great friends. It was supplied 

 with fresh food and water daily, the turf and soil being changed 

 every week, and I paid it every attention. As the months rolled 

 on and December was ushered in without any sign of eggs, I 

 began to despair ; however, I persevered, and great was my 

 delight when, on the nth January, 1891, my friend presented 

 me with two. Certainly not much of a beginning, but there 

 they were. I carefully removed these eggs from the box and 

 placed them in a pot of damp earth, anxiously watching them 

 day after day, lest the animal should deposit no more. Imagine 

 my feelings when examining them on the twelfth day to find the 

 diabolical larvae in full possession ! I there and then registered 

 a vow of extermination against all flies, for I felt all my labour 

 had been in vain. However, my friend proved faithful to its 

 trust, and ultimately presented me with more eggs. I will now 

 give particulars of 



Eggs deposited by Self-Fertii.ised Arion atcr. 



Date of Deposit. N'o. Deposited. Remarks. 



Singularly enough these were all 



January llth, 1891 2 



,, 25lh, ,, 2 



February llth, ,, 2 



what I termed double eggs. CO 

 Each of them fell a victim to the 

 larvai. 



April 3rd, ,, 60 ... .^lugs began to appear on May 21. 



i The Arion was eighteen hours 

 ,, 15th is; 1 6th 70 -| depositing this batch. Eggs be - 



,, 29th, 

 May loth, 



,, 28th, 

 June 7th, 



,, 30th> 



53 



34 



27 



6 



6 



gan to hatch out on May 28th. 



Unfertile, eggs very small. 



Total ... 264 



There is one interesting point that I will draw attention to, 

 that is, the difference in the length of time taken in depositing 



J.C., vii., Apr. 1S93. 



