55 



Notes on some Animal Colouring Matters examined at 

 the Plymouth Marine Biological Laboratory. 



{Brief Abstract.) 



By 



C A. MacMnnn, 91. A., M.D. 



The following is a list of the Invertebrates which I had an oppor- 

 tunity of examining. Their pigments were not in all cases thoroughly 

 studied^ partly because the Laboratory had been opened but a short 

 time before my arrival, and was not yet fully provided with the 

 necessary chemical apparatus, partly through want of time. 



Ghrysaora hysocella. 

 Tuhularia indivisa. 



Antedon rosaceiis. 

 Asterias glacialis. 

 Goniaster equestris. 

 Sol aster ^apjposa. 



Arenicola piscatoriim. 



TereheUa. 



Cirratulus. 



Nereis. 



Pontohdella. 



C(ELENTERATES. 



Gorynactis viridis. 



ECHINODERMS. 



Asterina gihhosa. 

 Holothuria nigra. 

 Ocnus hrunneus. 



Yermes. 



Polynoe. 



Chastopterus insignis. 

 Nemertes neesii. 

 Phy llodoce viridis . 



TUNICATES. 



Styela grossularia. 

 Botryllus violaceus. 

 BotryUoides. 



Lepralia foliacea 

 And one Mollusc — Doris. 



Ascidia virginea. 

 Clavellina lepadiformis. 



Bryozoans. 



