357 
LIMNOCODIUM (CRASFEDACUSTES) SOWERBII. 
form must be regarded as closer with the Leptomedusae than 
with Trachomedusae. 
Fig. 1. — Limnocodium Sowerbii, as seen floating. Magnified five diameters. 
MR., marginal ring ; Ve, velum, witli tubular otocysts ; PTy per- 
radial tentacle. 
In the present communication I shall apply myself to these 
Fig. 2. — Limnocodium Sowerbii, with retroverted disc. MR, marginal 
ring ; MC, marginal canal ; Rc, radial canal ; Si, stomach ; Go, gonad ; 
Pe, velum. Magnified five diameters. 
