Part first. 



Anemones, etc., which he may find moving among the rocks 



in various tanks. After seeing tank 23 he will be prepared to 



trace such vagaries to the little crab which is their cause. 



Enquiries of any kind may be made of the attendant. 



Tank Nr. 1. 



Containing exclusively Echinoderms (p. 63). 



1. Starfishes or "five-fingers", with five (rarely more) creeping 

 arms: Echinaster (fig. 2), red and slender-armed; Luidia 



Fig. 1. Astropecten aurantiacus, 

 size. p. 65. 



Fig. 2. Echinaster sepositus, 

 Va nat. size. p. 65. 



Fig. 3. Asterias glacialis, 

 Va nat. size. p. 65. 



Fig. 4. Ophioderma longicauda, 

 J /2 nat. size. p. 65. 



