REPORT ON THE ANNELIDA. 
34i 
Family Goniadida:. 
Only one or two representatives of this family have, as a rule, occurred in the 
collections made during the various voyages. The only one procured in the Challenger 
inhabited 10 fathoms’ water. None are mentioned by Schmarda. Kinberg in his 
anelids of the “Eugenie ” describes five, under four genera, while Grube mentions but one 
in the series from the “Gazelle,” and another in the Philippine collection.^ Ehlers 
found Eone nordmanni at a depth of 725 fathoms from the “ Porcupine,” and Goniada 
macidata a little deeper. 
They range to the extreme north and far southward, as well as to the intermediate 
warmer area. 
Eone, Malmgren. 
Eone trijida, n. sp. (PI. XLII. fig. 4 ; PI. XXIIa. figs. 8, 9). 
Habitat . — Dredged at Station 167a, Queen Charlotte Sound, Cook Strait, June 27, 
1874; lat. 41° 4' S., long. 174° 19' E. ; depth, 10 fathoms; surface temperature, 51°'5; 
sea-bottom, mud. 
A small and incomplete specimen, about 12 mm. in length and less than 1 mm. in 
breadth. 
The body agrees in appearance with that of the ordinary form, the only noteworthy 
difference being in the shape of the feet, which, especially behind the middle, are on the 
whole shorter. 
The teeth somewhat resemble those of Eone nordmanni, the maxillm presenting a 
basal region with a central aperture and three or four prominent denticulations. The 
smaller paragnathi have about four teeth on the free edge. 
At the tenth foot the three processes are much shorter than in Eone nordmanni, and 
the median or setigerous lobe is more evidently and symmetrically bifid. The bristles, 
however, do not present any noteworthy difference. The three lobes of the foot in the 
European form are long and nearly equal, but in the Challenger species the setigerous 
lobe is much more bulky than either of the others (PI. XLII. fig. 4), and bifid. More- 
over, the shafts and tips of the bristles are decidedly longer (PI. XXIIa. fig. 8). 
At the fiftieth foot the differences are even more pronounced. Instead of the two 
long lobes in each division of the foot in Eone nordmanni, the new form shows dorsally a 
short lobe with a smaller process beneath. The setigerous lobe is blunt, the inferior 
1 Annelidenfaima cl. Philippinen, p. 185. 
