CUNINA PEREGRINA. 



59 



preservation. The otocysts are situated on prominent ectodermic swellings, 

 which in life bear a number of bristles ; but after preservation most of these 

 have disappeared. The otoporpae (PI. 17, fig. 8) are of the usual type, but so 

 short that they hardly reach across the ring canal, and very broad, — a form 

 which is constant, and very different from those of C peregrina. The gastro- 

 vascular system is of the usual Cunina type, the peripheral canal system 

 being well developed (PI. 15, fig. S). The stomach is flat, but the simple 

 lip is capable of being considerably protruded. The gastric pouches, thirteen 

 or fourteen in number, are about as broad as long, nearly square in outline, 

 and separated from one another by very narrow septal regions. 



The gonads form thickenings covering the distal half or three fourths of 

 the gastric pockets. All the four specimens appear to be males. 



The specimens are colorless and hyaline, except for the gastro-vascular 

 system, which is opaque and of a faint bluish tint. 



Cunina peregrina, sp. nov. 

 Plate 1, Fig. 6; Plate 15, Figs, i, 2; Plate 28, Figs. 1-1; Plate 45, Fig. 8. 



As appears from the above table, this species was comparatively common 

 throughout the entire expedition. 



