266 Prof. M'lntosli's Notes fi-om the 



expanded base, and tlius an approach to the N. hucora of 

 Ehlers is made; but this, at any rate, is ap))arently variable 

 and much more marked, for instance, in A^. ca'ca. 



Body of the normal sliape, the folds of the triangular post- 

 oral region slope from before backward and slightly outward 

 on each side. The extruded proboscis is comjiaratively 

 smooth, for the papillaa in the rows of the first region are 

 small. A long and strong cirrus, however, occurs in the 

 median line dorsally. Tlie ])apill;i3 around the aperture 

 distally are ten in number on each side and normal in shape. 



The typical anterior foot (PI. VII. fig. 2) has an elongated 

 though not high lamella superiorly behind the bristles. Both 

 inner and outer edges are somewhat abrupt. The shape thus 

 differs from that of Nfphthys lofujisefosa, (Erst., to which it 

 bears some resemblance. The spinigerous lobe is conical in 

 antero-posterior view. The fillet at tlic base of the barred 

 bristles rises into a lamella superiorly and again externally. 

 The dorsal cirrus is thin and lanceolate, forming a compara- 

 tively large foliaceous expansion, sometimes with a thickened 

 rib interiorly. The branchia is separated from it only by a 

 shallow notch, and is of considerable size. 'J'he tip is 

 directed outwards. The barred bristles (PI. VIII. fig. 7) are 

 finely marked, and the simple bristles (PI. VIII. fig. 8) are 

 rather short, with a distinct curve where the shaft joins the 

 blade, which is but little expanded. From the curvature 

 almost to the tip the edge is minutely serrated. Similar 

 bristles occur in the ventral division. All are dark, with a 

 fine metallic sheen. The inferior division has a slight 

 lamella from the fold superiorly, passing outward and down- 

 ward behind the bristles nearly to the ventral border of the 

 foot. The spinigerous lobe is acutely conical and the fillet 

 guarding the bases of the barred bristles is distinct, folding 

 over superiorly to join the posterior lamella and inferiorly 

 ending in front of the ventral cirrus. It projects a little 

 beyond the fleshy part of the foot. The flat and conical 

 ventral cirrus is not much developed. The ventral edge o£ 

 the foot from the tip inwards seems to be thin, forming 

 a translucent narrow belt inferiorly. 



Certain features approach those of Nephthys scolopendrotdes, 

 but the form of the lamellae and fillets and the cirri distin- 

 guish it. 



Nephthys j^icta, Ehlers. 



38G8. Nephtln/s bucera, Eblers, Die Borst. ii. p. G17, Taf. xxiii. Gg. 8. 

 1868. ISejMJtys pida, Ehlers, Die Jiorst. ii. p. G32, Taf. xxiii. iig.s. 9, .35. 



Dredged by Mr. Whiteaves in the Gulf of St. Lawrence, 

 Canada, no. Gl, 1871, and at A 1, 1872. 



