1032 ON THE PLANKTON OF THE FAEBOE CHANNEL. [DeC. 13. 



It is the only Trachynema which approaches T. funerariitm Hid. 

 in size ; but its proportions, and the position of the generative 

 organs, are against its being a young form of this species. In 

 most recognizable points it lies between T. ocfonarium Hkl. and 

 T. eurygaster Hkl. ; but it agrees exactly with neither. The eight 

 radial canals and manubrium were of a strong brick-red. 



It occurred in deep or doubtful hauls only. 



EXPLANATION OF PLATE LXVI. 



Fig. 1. S'iphonospJicpra tizarcli, sp. n., p. 1025. A single individual is repre- 

 sented by balf the sheil and by half a section of the central capsule : 

 outside the latter are zoosauthellae. Cam. luc. 



Fig. 2. Aiilographis nworcnsis, sp. n., p. 1026. Termiuation of a radial tube. 

 Cam. lue. 



Fig. 3. Aidacantha IcBviasima Haeckel, p. 1026. Termination of a radial tube 

 in optical section, showing the denticulations. Cam. luc. 



Fig. 4. Aulographis moorcnsis, sp. n., p. 1026. A single terminal branch of a 

 radial tube, showing the denticulations and spathilla. Cam. luc. 



Fig. 5. Aulocoryne cetesios^ gen. et sp. n., js. 1027. Termination of a radial tube, 

 showing the club covered with zigzag spines. This beautiful drawing 

 is due to the skill of Miss Mabel Green. 



Fig. G. Aulocoryne zeiesios, geu. et sp. n., p. 1027. A single zigzag spine. 

 Cam. luc. 



