REPORT ON THE ANNELIDA. 
69 
The parallel ridges and triangular tuberculated elevations on the scales of certain 
Australian Polynoidse in the British Museum would seem to indicate stages in the 
production of these remarkable processes. 
The dorsal branch of the foot bears a somewhat small tuft of slender and moderately • 
elongated bristles (PI. XIa. fig. 10). The tip is rather blunt and the smooth por- 
tion very short. The spinous rows again are somewhat small and closely arranged. 
The structure of the bristle thus differs very considerably from that of Lepidonotus 
squamatus. 
The ventral bristles, on the other hand (PL XIa. fig. 11), have smooth simply hooked 
tips with a pair of very large spurs at the summit of the spinous rows. The latter 
are proportionally small. 
The dorsum is characterised by the presence of a lozenge-shaped space im- 
printed on each segment so as to leave a deep indentation at the bases of the feet. 
The impressed space is marked by four, five, or six linear transverse parallel ridges. 
Moreover, immediately behind the head are two dermal processes, connate in the middle 
and free at the sides ; and posterior to the foregoing are two small eminences or papillae. 
The anus opens nearly opposite the penultimate foot. Nothing of note occurred in 
the alimentary canal. 
Prof. Grube states that the palpi (his subtentacida) are smooth, but, as mentioned, 
such is only the case to the naked eye. The accurate structure of the bristles also 
escaped him and stiff more his artist, for the beautiful and costly steel engravings of 
this work are unfortunately not reliable in regard to structure, and once more 
exemplifies the trite remark that every zoologist should be more or less an artist. In 
his specimens the elytra were flecked with white, and the dark pigment was greenish- 
black. It is probable that this well-marked species exhibits considerable variation in 
regard to colour. Grube’s examples were procured by Semper at Pandanon, one of the 
Philippines. 
Eunoa, Malmgren. 
Eunoa iphionoides, n. sp. (PI. XVII. fig. 4 ; PI. VIIIa. figs. 1, 2). 
Habitat. — Procured by the trawl at Station 166 (off the coast of New Zealand), 
June'23, 1874 ; lat. 38° 50^ S., long. 169° 20' E. ; depth, 275 fathoms ; bottom tempera- 
ture 50°' 8, surface temperature 5 8°' 5.; Globigerina ooze. 
A small form about 11 mm. in length, and including the bristles 6 mm. in breadth. 
It is of a uniform pale hue with the exception of the yellowish bristles and the minute 
black dots on the scales. The body is elongate-ovoid. 
The head presents posteriorly two rather large eyes — wide apart, and two stiff larger 
