JELLY-FISHES. 369 



latory and rotatory movements among these spherules, 

 as iu the Mollusca ; but I have invariably found them 

 motionless in all the species of Medusa that I have 

 examined, as you see them here. 



One more little beauty from our stock, and we have 

 done with these. There is one that moves among the 

 rest like a bead of coral, the smallest of all, yet the 

 most brilliant. Here is another, and here another of 

 the same sort ; which has -been named by Professor 

 Edward Forbes, Twrris negleota, because naturalists 

 before him had neglected to notice it, just as we have 

 been doing, engrossed by its larger confrlres. 



Beautiful as is this little gem, it is not so large as 

 a dried pea, scarcely larger than a grain of hemp-seed. 

 It is described as " mitre shaped ; " in otlier words it 

 is a tall bell, with tho margin slightly bent inwards, 

 and the sides a little constricted. The umbrella is 

 thick, and being very muscular is not so translucent 

 as those we have been examining; hence it has a 

 pellucid white appearance. But through this shines 

 its chief beauty ; the peduncle is very large, and glo- 

 bose at the upper or basal part, which is usually, as 

 here, of a pale scarlet or rich orange hue. 



Imbedded in this orange-coloured flesh are seen 

 many points of a lovely rose-purple, which two colours 

 blending together, and softened by their transmission 

 though the sub-pellucid umbrella, have a peculiar 

 brilliancy. But stay ! here I have one more advanced 

 in age, which will exhibit some peculiarities of in- 

 terest in the economy of these frail but charming crea- 

 tures. 



In this specimen, which is somewhat larger than 

 the former, the margin of the umbrella is a little 



