MINUTE CRUSTACEA. 97 



side, the Imng atoms would presently be seen crowd- 

 ing up to that part by mjaiads, and studding the 

 glass in the vicinity, just as if it were covered with 

 fine dust. I subsequently availed myself of this ac- 

 quaintance with the habits of the Entomostraca, to 

 provide food for the smaller fishes ; for I found that 

 they soon disappeared, not a trace being left of their 

 presence after the Tank had been stocked a few days, 

 they doubtless having been devoured by the Wrasses 

 and Mullets. I therefore gathered some tufts of the 

 more bushy sea-weeds, and allowed them to remain 

 floating in the Tank for an hour or two in the evening, 

 a candle being placed outside. The result was the 

 same as I have described ; the vast numbers that 

 swarmed out were really astonishing ; and I was 

 pleased to see the little Mullets flock up to the spot 

 where the light revealed the tiny prey, and pick the 

 atoms from the glass, one by one, as fast as they 

 could seize them ; and yet the hosts crowded on, 

 faster than they could be devoured. 



The animals of which I could take distinct cogni- 

 sance were as follow. 



1 Fifteen-spined Stickleback Gasterosteus s^inacliia 

 7 Grey Mullet (young) Mugil capito 

 1 Black Goby Gobius niger 



1 Corkwing Crenilahrus Cornubicus 



1 5-beard Eockling Motella 6-cirrata 



1 Great Pipefish (young) Syngnathus acus 



1 Deep-nosed Pipe „ typJile 



2 Worm Pipe „ lumhriciformis 

 2i Ashy Top Trochus cinerarhis 



1 Navel Do. „ umhilicatus 



J? 

 H 



