456 



TAKU KOMAI : 



of body proper. Prominences above the sense-organ tolerably conspicu- 

 ous, passing over into the intercostal ridges at interradial corners of 

 body. Surface of body beset with conical papilla;. All ribs originate 

 at the same level and at that of the aboral end of meridional canals. 

 Subtentacular ribs reach somewhat beyond base of auricles, subpharyn- 

 geal ribs a little beyond margin of mouth. Combs fairly numerous ; 

 in a specimen 80 mm. in length of body proper, they numbered about 

 75 in each subtentacular, and about no in each subpharyngeal, rib 

 Pharynx about 2/3 as long as body proper; pharyngeal folds not so 

 long as in L. multicornis, being restricted to the aboral 2/5-1/2 of 

 pharyngeal wall. Subtentacular adradial canals open into meridional 

 canals at a point somewhat below the aboral end of latter, as is usual 

 in the genus. The course of the internal branches of lappet-canals could 

 not be followed out, owing to damages of those parts in all specimens 

 at my disposal. Sexual products develop in blind-sacs of meridional 

 canals, a pair of which sacs occur to each comb. Both primary and 

 secondary tentacles are present ; the former is simple, without branches. 

 The long blind sacs on either side of the broader surface of body is 

 similar to the same in other species of the genus. 



Colour. — Body faintly brick-red ; pharyngeal canals and lateral 

 blind-sacs of meridional canals somewhat more deeply so than other 

 parts. Margin of lappets tinged with amber-yellow, generally deeper 

 in tone in lateral than in inferior parts. 



Specimens examined. — Four specimens, 53-120 mm. in length of 

 body proper, were examined at Misaki between Dec. 30, 191 7 and Jan. 

 9, 1918. 



The ctenophore is extremely delicate in texture and becomes very 

 readily injured by influences of disturbed water. It comes to the 

 surface of water only when the sea is smooth after a succession of 

 some days of calm weather. 



Remark. — Without doubt this ctenophore is very closely related to 

 the Atlantic L. (Eucharis) multicornis. However, all the ribs seem to 



