68 ■ AET. II. — A. IZUKA : 



Bipeniiato-penicillate setae (fig. 9) are found only in the upper 

 half of the truncated end of parapodium ; serrulate setae occur 

 numerously in the lower part of the same ; spine-like setae, light 

 yellowish brown in colour, are strong and have no terminal appen- 

 dage (fig. 8), and are arranged in a row upon the end surface of 

 the parapodium. Aciculum, one in each parapodium, is situated 

 about one-third way up the vertical height of this. A tuft of long 

 and soft hairs of a golden yellow colour arises from the upper 

 half of the parapodium end. They are very long sometimes reach- 

 ing to a length of 40 mm. or more. 



Elytra are borne on the segments 2, 4, 5, 7, 9 &c. on every 

 alternate segment down to the posterior end of the specimens. 

 The first elytra are large and elliptical in shape ; they meet in the 

 median line ; the second ones roundish in shape, and smaller than 

 the first, being only about half as large. On the lltli segment 

 the median zone of the dorsal surface left uncovered by its elytra 

 is about twice as wide as the diameter of the elytra themselves. 



Proboscis strikingly large and strongly muscular. Each of its 

 dorsal and ventral lips is provided in the middle with a long 

 papilla of a bluish-white colour. The edge of each lip is lined 

 wdth a row of tooth-like papillae. Jaws two pairs, a dorsal and 

 a ventral. Each jaw provided with a row of 17 small teeth in 

 addition to the very strong apical fang. 



Habitat : — Sagami Bay, depth unknown ; Uraga channel, 70 

 fathoms (Mr. A. Owston) ; Sagami Bay, 100 fathoms ; South of 

 Boshu, depth unknown. 



Panthalis jogasunae n. sp. 



PI. 11, fig. P) ; PI. A^ll, figs. 1—6. 

 The following description of this new species is based on an 



