60 



EDWARD T. BROWNE. 



DESl'RIPTION OF THE PLATES. 



KKY TO Tilt; LKTTHRIXC OF THE PLATES. 



or. 1., ociihir lobe (= rbiijtoliur IoIk'"). 



or., oral lip. 



(//., otocyst. 



01'., ovum ; ovary. 



ji., papilla. 



per., ix'rradial. 



per. c, perradial canal. 



r., radial canal. 



rh., rhopalium. 



rh. c, rhopaliar canal. 



rh. 1., rhopaliar lobes. 



s. p., sensory pit. 



sj)t., septum. 



sf., stomach. 



si. r., perradial ridge of stoniacli. 



sub., sub-umbrella. 



/., tentacle. 



ta., taeniola. 



tc, tentacular canal. 



//., tentacular lobe. 



««'., umbrella wall. 



v.. Velum. 



PLATE I. 



Fig. \.~C'iUahlema iceldoni. Early stage, x 10. 



Fig. 2. — CatabUina weldoni. Adult, x iii. . 



Fio. 3. — Catublema icelloiii. The basal portion of a tentacle. Lateral view. X 12. t., basal bulb; 

 re, circular canal ; dc, diverticulum ; ex., exumbrella ; mh., marginal bulb ; r., radial canal. 



V\i;. \.—C'alublema weldoni. The fihimenls upon a tentacle. Lateral view. X a.'i. 



Fig. it. — t'altiblema weldoni. T<ower portion of the stomach, showing the gonads (//.), and the mouth (w.) 

 with jierradial lip {per.), x 20. 



Fii;. (i. — Cosnielirella simplex. ,\dult. Lateral view, x 7. 



Fig. 7. — Cosmetirella simplex. A portion of the margiu of the umbrella, showing a sensory pit {sp.) and 

 two tentacles, x 00. 



Fig. 8. — Cosmetirella simplex. Transverse section of u sensory pit. x 480. cc, circular canal ; 

 ot., otocyst ; v., velum. 



