BY DR. R. VON LENDENFELD. 167 



Umbrella high ; conic, twice as high as broad; a deep furrow- 

 between central part and marginal part of Umbrella. The 4 

 perradial Pedal ia double as broad as the interradial ones, as long 

 as the margin laps, these eight in number ; 4 tentacles double as 

 long as height of Umbrella. Mouth tube quadrangular prismatic, 

 nearly double as long as the central stomach. 



Size: 10 mm. wide and 20 mm. high. 



Locality : Antarctic Ocean, south-east of Kerguelen, Lat. S. 

 64° 37'. Long. E. of Greenwich, 85° 49'. Station, Nr. 154, of 

 the " Challenger," Wyville Thomson. 



5. Gen. Pericrypta. Haeckel, 1879. 

 Four perradial pouches with four continuous cavities. 4 inter- 

 radial Taeniols of the basal stomach ; they are high caves covered 

 along their whole length with two rows of gastral filaments. 



5. sp. Pericrypta galea. Haeckel, 1879. 



Haeckel System der Medusen. Seite, 414. 



Umbrella high, helmet shaped, 1| as high as broad, divided in two 

 equally high parts by a circular groove. The four perradial 

 Pedalia of the margin of the Umbrella only slightly broader than 

 the four interradial ones, slightly longer than the eight marginal 

 laps. Four tentacles as long as height of Umbrella. Mouth tube 

 cubic, with wide pouches with eight long adradial barbs. 



Size : Breadth, 30 mm., height, 40 mm. 



Locality: South Pacific Ocean, East Coast of Australia. 

 Schnehagen. 



6. sp. Pericrypta campana. Haeckel, 1879. 



Haeckel System der Medusen. Seite, 414. 



Umbrella bell shaped, a little higher than broad. Shallow 

 circular groove. Inner part double as high as marginal ring. The 

 four perradial Pedalia double as broad as the four interradial, 

 double as long as the eight stump margin laps. Four tentacles 

 double as long as the height of the Umbrella. Mouth tube 

 quadrangular prismatic, half as long as the central stomach, 

 without barbs. 



