18 



CARL CHUN. 



[REP. OF THE „MICHAEL SARS" NORTH 



side these we see in addition a system of exceedingly 

 fine ring-muscles, while in the interior the capillary vessels, 

 and also a whitish structure situated in the proximal third 

 part of each stalk, are visible. 



towards the point, thinning away towards the edge, and 

 reminds one of the reflectors occurring in the light- 

 organs of many Oegopsidae. It consists of a gristly 

 substance, the scattered nuclei being surrounded by a 



•»«lg5|§ 





il 





■a 



n 



' 





'.-.\. 





Fig. 9. Cirrothauma Murrayl, Ventral aspect. 



If we examine sections of this whitish structure we 

 find it to consist of a shell, the point of which has a 

 distal and forward direction. The aperture of the shell 

 is filled by a ball-shaped cellular body, which does not 



light-coloured area without pigment-covering. In the 

 ball-shaped cellular body numerous small and round 

 nuclei are visible, but there are no sharp divisions 

 between the cells. Only on the proximal side more 



touch the edge of the shell. The latter is thickened distinct grape-like cells occur. 



