60 



EDWARD T. BROWNE. 



DESCRIPTION OF THE PLATES. 



("/., adhesive pad (Lucernarid). 



(ul.f., adhesive disc of the foot (Lucernarici) 



I., basal bulb. 



<-., cordylns. 



c., cavity of the peduncle (Lucernaria). 



re., circular caual. 



cm., circular muscles. 



i/i'., diverticulnm of the circular canal. 



ec., ectoderm. 



ec. c., ectodermal cavities. 



i'/i., endoderm. 



ex., exumbrella. 



/., filament of the stomach. 



(j., gonad. 



i/i/.. genital duct. 



inter. ('., iuterradial canal. 



k., canal in foot of Limr/it/riii. 



in.. mouth. 



'iiili., marginal bulb. 



Hies., mesoglsea. 



iin'xi'ii., mesentery. 



n., nematocysts. 



ec., ocellus. 



PLATE I. 



FIG. 1. GataUema iceldoiii. Early stage, x 10. 

 FIG. 2. Catalilema weUoiii. Adult, x 3i. 



FIG. 3. GataUema welthni. The basal portion of a tentacle. Lateral view. X 1-. l>., basal bulb; 

 re., circular canal ; tic., diverticulutn ; ex., exumbrella ; ml., marginal bulb ; r., radial canal. 



FIG. 4. Calablema weldoni. The filaments upon a tentacle. Lateral view, x 25. 



FIG. 5. Catubhma icehloni. Lower portion of the stomach, showing the gonads (//.), and the mouth (in.) 

 with perradial lip (per.), x -0. 



FILL (i. L'usiiietirella simple.!'. Adult. Lateral view, x 7. 

 PIG. 



PIG. 



7. Cosmetirelhi siiiijjlr.i: A portion of the margin of the umbrella, showing a sensory pit (s.p.) and 

 two tentacles, x 0(*. 



s. CosiiiftireUa siijjJe.r. Transverse section of a sensory pit. x 480. <r., circular canal ; 

 ot., otocyst ; r., velum. 



