50 Prof. M'lntofch's Xoles froin the 



cylindrical shafts (PI. 11. fig. 2) and sliglitly curved 

 ■vvingcd tips, ^vhich taper to a fine point. The widest part 

 of tlic bristle seems to be a little above the comniencemeutof 

 tlie wings. Besides tlie main bristles of each tnit a shorter 

 series of winged forms (PI. II. tig. 3) occur Victween them, 

 little more than the tips with the wings projecting- beyond 

 the surface. The brisiles retain the same structure through- 

 out, the curvature of the tips only sliowing variation. 



The anterior hooks commence at the third bristle-bundle, 

 being attached to a slight ridge, which, as the hooks approach 

 more closely to the setigcrous process, posteiiorly becomes 

 a small lamella. The hooks form a single row and nearly 

 correspond in structure (PI. I. figs. 9 & 10} with those figured 

 by Malmgren, viz., having a slightly sinuous crown with a 

 peak for the ligament at the posterior angle and five teeth 

 in lateral view, the last being broad and short. Tiie prow 

 is smoothly ronndcfl, and the notch between it and the tooth 

 is wide internally and differs from Malmgren's figure. 



So far as can be observed, the number of the posterior 

 lamellae for the hooks is twelve. They are flattened and 

 somewhat irregularly conical next the bristled region, but 

 soon develop an elongated dorsal cirrus or filament, which 

 continues to the posterior end. The hooks of this region 

 (Pi. I. fig. 11) are considerably smaller than those of the 

 anterior region, have a proportionally broader crown and 

 only four teeth in lateral view. The prow is proportionally 

 larger and the posterior outline more convex. 



The tube is composed of fine mud and is comparatively 

 soft. To the exterior are attached filaments of reddish algge 

 and patches of Celhpora. The tube is considerably longer 

 than the body of the animal. 



TheTerebellidse dredged in the Gulf of St. Lawrence com- 

 prise Ani/j/utrite cirrata, O. F. M., off Port Hood, Cape 

 Breton, Amphitrite, A. B., off Cape Rosier Lighthouse, whilst 

 a form near ^. grcanlandica was found off Port Hood. Te e- 

 helln jiyulus^ D.ilyell, was met with between Cape Rosier and 

 Ca])e (jaspe in 1872. Thelepus ciacinnatus, O. Fabr., was 

 dredged in numbers on Orphan Bank, and in 100-200 

 fathoms off Anticosti in 1871, and at No. 8, 1872, The 

 widely distributed Pisia crhiata, O. F. M., was met with ou 

 stony ground in 75-100 fathoms between Cape Rosier and 

 Cape Gaspe. A Pohjcirrus was dredged in 170 fathoms 

 on the same ground. Lanassa nor dens kioldi, Malmgren, 

 occurred ofif Cape George, Nova Scotia, and in various 

 hauls elsewhere. Artacama canadensis, a form near Malm- 



