from ilie Xortli Sea and adjacent parts. 173 



have "a dense series of minute papillaj with enlarged tips." 

 The palps of Theel's more northern form are quite naked, 

 while those of the present form, from more northern waters 

 also, have only a few paj)illre. Unfortunately no scales are 

 present. 



A larger supply of material would liave made it possible to 

 determine whether Polynoe aspera and Lagisca elisahetJue 

 were identical. It may well be that they are the same form, 

 for tiie points of difference between them are small and com- 

 paratively unimportant. 



Genus ACANTHICOLEPIS, Nomiau, MS. [Dasylepis, Mgrn., 

 1867). 



Acantliicolepis asperrima, Sars, 18G0. 



The occurrence of this annelid in the collection considerably 

 extends its iiabitat. It has hitherto been found in British 

 waters only in the Firth of Clyde; the present examples are 

 all from the area to the north of the Shetland Islands. This 

 uncommon annelid inhabits both our shallower waters and 

 the deeper and colder seas of the north. It is common iu 

 the Norwegian fiords. 



The complete specimens measure respectively 28 mm. and 

 20 mm. in length. All the scales have been lost and none 

 of the forms has a complete set of head- appendages. Obser- 

 vation shows that the palps are covered for their whole length 

 by papillae arranged lengthwise in at least four rows. 

 M'Intosh (1900, ]>. 312) remarks that the palps are only 

 partly papillose, being mostly smooth. The papillte are 

 conical in shape and bent over at the tips. 



The bristles, especially the ventral, are reminiscent of 

 Eunoa tritoni. The animal is a striking one, and its appear- 

 ance justifies its specific name. 



Genus Hakmothoe (Kinberg, 18571, char, emend. M'Intosh, 

 1900. 



Harmothoe imhricata, Linn., 1767. 



Of this common form only two examples were found on 

 the same day at adjacent points in Shetland. The larger is 

 only 20 mm. in length. It is remarkable that so ubiquitous 

 an annelid should be so sparsely represented in the present 

 collection. 



The contents of the gut consisted of diatoms, fragments of 

 silica and other minerals, sponge-spicules, foraminifera, s])ines 



