84 Prof. M'lntosli's Notes from the 



feet of his Pionosyll'is alternosetosa thus : — " dans le 9 a 14 

 segments posterieurs, et il vient s'y joindre aux sept derniers 

 segments une sole simple dorsale, fine, \m pen courbe, sans 

 crochet terminal." These simple bristles occur equally in 

 Syllis armillaris and have precisely the same structure and 

 arrangement. They are not compound forms which have 

 lost their tips, but are comparatively stout, simple, curved 

 bristles which taper to a point. 



In regard to SylJis brevicirrata, besides its alliance with 

 SyUis gracilis it has certain close relationships with a variety 

 of Syllis armillaris. 



2. On the British Maldanida?. 



Much has been done since the days of Savigny for this 

 group, especially by the elder Sars, Cuvier, Milne-Edwards, 

 Grube, 13e Quatrefages, Claparede, Malmgren, Ehlers, 

 Wiren, Tauber, Verrill, Parlin Johnson, Moore, Treadwell, 

 De St. Joseph, Fauvel, Racovitza, Lo Bianco, and othei-s ; 

 but in regard to the arctic and Scandinavian forms the 

 recent treatise of Arwidsson surpasses all previous publica- 

 tions in its extent and in its detailed treatment of each 

 species, and the accompanying figures are also excellent. 

 Thus, whilst Malmgren had only nine northern species (1867), 

 Arwidsson has twenty-seven named, and live unnamed under 

 two genera. The following is a preliminary account of the 

 forms hitherto met with in Britain, and various changes 

 and additions will probably soon occur, especially from the 

 western waters of Ireland and the southern waters of 

 England"^. 



The only species of this family entered by Dr. Johnston in 

 his ' Catalogue of Worms in the British Museum ' f is 

 Clymene borealis, a form which from DalyelPs description and 

 habitat probably refers to Nicomache maculata, Arwidsson. 

 Yet the specimen in the Britisli Museum has some resem- 

 blance to Clymene ebiensis, Aud. & Edwards, and the example 

 was dredged in the North Sea off the Shetland Islands. In 

 the Supplement to the above work a second species is 

 entered J, viz. Clymene lumbricalis, Aud. & Ed., which is 

 described as having the head-plate broad, projecting from 

 the sides, and the papillse of the funnel thirty-six in number, 

 alternately longer aud shorter. Of this form two examples 

 are in the British Museum, the first of which is referred to 



* The present is only a preliminary notice of the family . 



t P. 233. 



X V, 345 ; Cuv. Regne An. 6d. Crochard, Aunel. pi. x.xii. fig. 2. 



I 



