THE GENUS APPENDICULARIA. 308 
Fig. 6. 
The “Haus,” magnified three times. 
Fig. 7. 
Ag S S S : 
e. *« 
SS Eod 
SÓN 
NW. 
N 
Me 
Immature ** Haus," magnified about 60 diameters. 
A, median groove; B, small fannel-shaped opening ; C, lateral reticulations; D, fissure where 
the Appendicularia was attached ; E, lateral tubular openings. 
VOL. XXVII. 28 
