Part first. 



tank 23 he will bo prepared to trace such vagaries to the 

 little crab which is their cause. 



The numbers are written in red characters above the 

 tanks. 



Tank Nr. 1. 



Containing exclusively Eehiiioderms (p. 63). 



1. Starfishes or « five-fingers », Avith five (rarely more) creeping 

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



Fig. 1. Astropecten auraiitiacus, 

 */4 nat.size. p. H5. 



Fig. 2. Echinaster sepositus, 

 '/j nat. size. p. 65. 



Fig, 3. Asterins ylaciaUs, 

 '/g nat. size. p. (55. 



Fig. 4. Ophioderma longicnnda, 

 '/.^ nat. size. ji. 65. 



