266 Prof. M'lntosh's Notes froi. ^^« 



expanded base, and thus an approach to*''® -^' u^cpra of 

 Elilers is made; but this, at any rate, is f>parently variable 

 and much more marked, for instance, in A^jo^crt. 



Body of the normal shape, the folds of th triangular post- 

 oral region slope from before backward and'l'S'itly outward 

 on each side. The extruded proboscis ii^ comparatively 

 smooth, for the papillas in the rows of the f^^ region are 

 small. A long and strong cirrus, however, *^c<^^^i's I'l the 

 median line dorsally. The papilla3 around ^'^6_ aperture 

 distally are ten in number on each side and norl^' ^^ shape. 



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

 though not high lamella superiorly behind the bi'tl^s. Both 

 inner and outer edges are somewhat abrupt. ^I'li shape thus 

 differs from that of Nephthys lorujisetom, CErst., I vvliich xt 

 bears some resemblance. The si)inigerous lobe i.'Conical in 

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

 bristles rises into a lamella superiorly and again (Eternally. 

 The dorsal cirrus is thin and lanceolate, forming jjCompara- 

 tively large foliaceous ex|jansion, sometimes with a nckened 

 rib inferiorly. The branchia is separated from it d' J _ by a 

 shallow notcli, and is of considerable size. '^I'he tip is 

 directed outwards. The barred bristles (PI. VIII. fig'^) ^^'® 

 finely marked, and the simple bristles (PI. VIII. fig") ^^'^ 

 rather short, with a distinct curve where the shaft jo'^ the 

 blade, which is but little expanded. From the cur^tiire 

 almost to the tip the edge is minutely serrated. Siiuar 

 bristles occur in the ventral division. All are dark, w'^ ^ 

 fine metallic sheen. The inferior division has a sB'^t 

 lamella from the fold superiorly, passing outward and do'i^" 

 ward behind the bristles nearly to the ventral border of '^6 

 foot. The spinigerous lobe is acutely conical and the fi^^t 

 guarding the bases of the barred bristles is distinct, foldin 

 over superiorly to join the posterior lamella and inferiorl 

 ending in front of the ventral cirrus. It projects a lit^ 

 beyond the fleshy part of the foot. The flat and conic' 

 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 o^ Nej)hthys scohpendroideff 

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

 guish it. 



Nephthys jjicta, Elilers. 



]8C)8. NepMhys hucera, Elilers, Die Borst. ii. p. G17, Taf. xxiii. fig. 8. 

 1868. Ne2)MJiys pida, Ehlers, Die Borst. ii. p. (J32, Taf. xxiii. figs. 9, 35. 



Dredged by Mr. Whiteaves in the Gulf of St. Lawre- -e, 

 Canada, no. 61, 1871, and at A 1, 1872. 



