220 PROF. W. A. HASWELL : 



The palpi are completely united, without any median notch (even in the 

 embyro) and are comparatively long, so that in the living animal, when fully 

 extended, they may be three times the length of the prostomium and peri- 

 stomium together. The tentacles are usually reduced to three similar oval 

 rudiments, but in some the median tentacle is a good deal longer than the 

 others. The single peristomial tentacle is very small, though not so rudi- 

 mentary as in E. fustifera. 



The simple seta on the dorsal side of each parapodium (fig. 9) has the 

 curved terminal part tapering to a fine point close to which is a small denticle. 

 There are five compound setse (fig. 8), all of which have terminal appendages 

 of the normal kind, that of the first (most dorsal) (text-fig. 1) long and 

 slender, while those of the others, though completely formed, are quite 

 rudimentary. The most ventral seta is usually simple, curved at the end 

 and bidentate, like the corresponding seta in E. fustifera. The aciculum 

 (figs. 10 A, 10 b) is curved at the end and slightly expanded. Both the dorsal 

 and the ventral cirri are small and approximately oval like the tentacles. 



Text-fij?. 1. 



Setas of Exoyone verruyera. 



Dorsal cirri are always present on the second segment. The eyes in most 

 cases have the appearance represented in fig. 7. In one specimen they are 

 both large and irregularly shaped, the anterior pair being rather the larger ; 

 in another the posterior pair of eyes had the pigment remarkably drawn out 

 into a long narrow process projecting backwards into the peristomium 

 behind the ciliated groove. In several others the lenses of both the anterior 

 eyes are produced into horn-like pointed bodies. 



The median tooth, when the proboscis is retracted, lies in the first 

 setigerous segment. The gizzard is much more elongated than in E. fustifera, • 

 extending from the fifth to the seventh segments in the retracted condition, 

 and containing about 25 rows of muscle-columns. 



In most respects this species, which is fairly common in Port Jackson, 

 approaches very near Claparcde's E. verruyera. But the difference in the 

 palpi seems to be very marked — those of E. verrugera being, to judge from 

 (Jlaparede's figure, distinctly notched terminally. 



