116 — MR. GOSSE ON A NEW FORM OF CORYNOID POLYPES. 
Species, LAR SABELLARUM (Gosse). 
Species unica. L. tentaculis tribus, filo radicali circa Sabellarum tubos parasiticé repente. 
EXPLANATION OF THE PLATE. 
o. TAB. XX. 
Fig. a. The extremity of the tube of Sabella vesiculosa, occupied by a colony of Lar Sabellarum (mag- 
nified 70 diam.). 
Fig. 5. An individual Lar, displaying the hollow head-lobe and tentacles, "es the TT digestive 
canal (magnified 120 diam.). 
Fig. c. A portion of one of the tentacles, showing the T surface. 
Fig. d. A single Lar, with the thread, attached to an excised aon of the tube, paralysed and some- 
what contraéted (magnified 240 diam.). 
Fig. e. A portion of one of the tentacles, flattened by pressure ; emis the parietal cells, and the edges 
of septa (magnified 560 diam.). 
Fig. f. Nucleated cells from a crushed tentacle. 
