APPENDICULARIA OF JAPANESE WATERS. 7 



3. FritHlarln HitterU nov. sp. 

 PL II., figs. 12-17. 



Trunk bro;ul and flat. Ventral lip separated by a 

 deep median notch into two lateral lobes, to which a 

 thick protoplasmic mass protrudes from the anterior 

 margin of oikoplastic zone. Spiracle and outer opening 

 of atrial canal small and round. Ovary round, small, 

 situated on the posterior left side of rectum. Testis 

 very large, extending from the posterior right side 

 of rectum to the end of trunk in L-like form, so that 

 the whole mass of genital glands is somewhat T-shaped. 

 Tail bifurcated at end ; at its base two deep notches 

 between axis and wings. 



The trunk of this species is very broad and flat, its thickness 

 being equal to about half the breadth. The dorsal lip has on 

 the inner wall a transverse row of plasmatic cells corresponding in 

 position to the outer ciliated zone of other Fntillaria, but no 

 ciliary processes were visible on it. The lateral lobes of the 

 ventral lip form a jaw-like process quite similar to that of Fri- 

 tillaria horealis Lohm. The ciliated fossa or olfactory organ, 

 situated to the right of otocyst, is small but distinct. The end- 

 ostyle is thick anteriorly and curves upward. The stomach lies 

 on the anterior left side of rectum. The intestine is a short 

 canal on the dorsal side of rectum. 



The tail is bifurcated at the end ; its musculature is very 

 wide. The anterior end of the lateral wing of tail is separated by 

 a deep, narrow notch from the median stem. 



