JAPANESE PALOLO, CERATOCEPHALE OSAWAT, N. SP. 9 



show* in the middle a transverse row of three papilla 3 , situated 

 one in eaeh of the three areas known as the anterior median and 

 the right and left anterior submedian. Further it shows two 

 more papilla? of quite insignificant height, each situated near 

 the lateral border, i. e., in the areas known as the anterior 

 lateral. The ventral aspect of the anterior ring (PI. II., fig. 

 11) hears a varying number of papilla: 1 , arranged in irregular 

 rows. These seem to increase in number with the growth of 

 the individual. In the larger specimens their number varies 

 from 17 to 27. 



The paragnathea, which are of much common occurrence in 

 the Lycoridœ and offer points of considerable systematic impor- 

 tance, are not found in this species as is also the case in 

 Geratocephale loveni. 



Typical Parapodia. — The parapodia are best developed where 

 the segments are largest, say in segments X. to XL. As an 

 illustration of a typical parapodium I may take that shown in the 

 annexed Woodcut 3, which represents the 30th parapodium 

 belonging to the XXXI. segment. 



It consists of two rami, the dorsal (D) and the ventral (I"). 

 From the upper side of the dorsal ramus arises the dorsal cirrus 

 (d.c), consisting of an elongate conical distal, and a thick basal, 

 section. The latter, in the parapodium in question, is broad but 

 of only about half the length of the former, and is well marked 

 off by constrictions from this as well as from the ramus bearing- 

 it. The dorsal ramus lacks the upper ligula but possesses the 

 lower ligula (/.), which arises from a point slightly ventral to 

 its distal end and is somewhat longer than the dorsal cirrus. 

 The ligula. may be said to be conical in shape and more or less 



