Guihj yUn'ine Lahoratory^ St. Aiulreios. 53 



The lonn^or (PI. II. ti'^. 10) havn finely striated sliaft^, which 

 slightly (liiniiiish to the origin of the wings, the ta|)eriiig tip 

 liaving a well-marked curve, which in tlie preparations lias 

 the convexity forward. The edges of the wings seem to be 

 minutely serrated. In the sh.orter series (PI. II. fig. 11) 

 the tips only project beyond the surface, and the wings are 

 ])rop()rti()nally broader. The [)resence of the thin anterior 

 lamellne in these setigerous processes is nf)tewortiiy. A 

 papilla under the middle branchial tuft indicates the com- 

 mencement of the series, though it bears no bristles. 



Tlie anterior rows of hooks, which commence on the second 

 setigerous segment, are comparatively long, those toward 

 the end of the bristled region nearly reaching the elevated 

 mid-ventral line. A change occurs after the cessation of 

 the bristles, for, instead of sessile rows of hooksj uncini- 

 gerous processes are developed beneath a foliaceons lamella 

 after the manner of a Phyllodocid. These lamellae gradually 

 diminish posteriorly, and are minute in the caudal region. 

 The first nncinigerous process and lamella are smaller than 

 those which succeed. At the fourth the nncinigerous lobe 

 is s(imewhat tongue-sliapcd with the hook on the doi'sal con- 

 vexity, the shorter inferior curve being bare. The lamella 

 is large ?ind reuiform, being fixed by its pedicle at the 

 hilus. The minute hooks ( PI. III. fig. 3) have the same 

 structure both anteriorly and posteriorly, viz., a proportion- 

 ally large great fttng, with five or six teeth in lateral view 

 above it, so that the crown is large, the posterior outline is 

 convex with a deep dim|)]e above the base, which is short and 

 convex inferiorly, whilst the anterior outline has a process 

 beneath the great fang, the prow presenting no peculiarity. 

 These hooks differ so much from those figured by Malmgren 

 that furtlier observations are necessary to ascertain the 

 relationships of the Canadian form. 



5. On the Ampharetidae rt/?rf Terebellidie dredged by 

 Canon A. M. Xunnan off Xonray. 



TliC Ampharetidic occurred at various stations, from 33 to 

 44-, and ranging to 210 fathoms, and they included A)a/ihu- 

 rete yruhei, Malmgren, Amphlcteis yunneri, Sars, Sabellides 

 octocirraia, Sars, Melinna cristata, Sars, 37. elisubethce, 

 M'lntosh, and Amaye auricula, Malmgren. 



Amongst the interesting Terebellids are a form near 

 Amph'itrite yrai/i, Malmgren, Ttrebella datdchseni, Malmgren, 



