14 ART. 9. — K. KISIIINOTJYE : 



^eopelarjia exhnia, \\. sp. 



(PI. III, Fig. 15.) 



The umbrella is flat, disc-shaped, more or less depressed 

 at centre. The exumbrella is granulated. The gelatinous sub- 

 stance of the umbrella is rather tough. 



The presence of eight principal tentacles is extraordinary 

 and very remarkable. The tentacles are laterally compressed and 

 are granulated Avitli nematocysts on the abaxial side only. 



The central stomach cavity is large, its diameter being longer 

 than the radius of umbrella. The radial pouches are quite similar 

 to those of the genera Pelagia and Sanderia. The pouches send 

 two horn-shaped processes into each marginal lobe. The septa 

 between the radial pouches are nearly straight, but generally bent 

 towards the sensory club near the distal end. 



The four oral pillars are narrow. The oral tube with four 

 prominent perradial ridges is columnar and nearly as long as the 

 umbrella-diameter. On its sides but especially on perradial ridges 

 and also on oral pillars, there are numerous, minute, conical 

 nematocysts. The lower end of oral tube gradually expands and 

 is divided into four well developed oral arms. 



The four oral arms are spirally convoluted, clockwise when 

 seen from the oral side. They seem to be more or less contractile, 

 especially in the distal parts. Their lateral lobes are wide and 

 much ruffled. Their midrib is provided with nematocysts. 



The four genital glands are well developed and consist each 

 of many laterally compressed, lamelliform outgrowths. The glands 

 are bent towards the centre and the oral side at both extremities 

 and thus closely touch one another. There is no distinct subgenital 



