On Vermes collected in the Sea of S^itzhergen. 53 



On comparing the above measurements with those of the 

 European species, it appears that the latter has a longer bill 

 and tarsus. The females of the two species, as might be 

 expected, do not differ very conspicuously ; but that of the 

 American bird is much larger in size, and exhibits the same 

 difference in the nasal ridges. 



VII. — On the Vermes collected hy M. von Heuglin in the Sea 

 of Spitzhergen. By Prof. Ehlees*. 



The catalogue here given, as regards the Chaetophorous An- 

 nelides, supplements Malmgren's admirable memoirs (" Nor- 

 diska Hafs-Annulater," (Efvers. af K. Vet. Akad. Forhandl. 

 1865, and 'Annulata polychseta,' Helsingfors, 1867), which 

 have disclosed to us the Annelidan fauna of the Arctic Sea. 

 The names employed by Malmgren are therefore retained here, 

 without, however, any intention of thus expressing an uncon- 

 ditional acceptance of the numerous genera established by 

 Malmgren, 



Annelida polychjeta. 



^^^Nychia cirrosa (Pall.). Storfjord (Wybe Jans Water). 



Harmothoe imbricata (L., Malmgr.). StonQord. 



Numerous examples and many colour-varieties. 



Antinoe Sarsii (Kinb.). Storfjord. Zweigletscherbucht 

 (Mohn Bay). 



This species, of which there are numerous specimens, occurs 

 in two races definitely separated by difference of colour ; and 

 as Malmgren only mentions one of these, both of them may 

 be here briefly described. The more abundant form presents 

 the coloration which, according to Malmgren, distinguishes 

 the Spitzbergen form from the Baltic one ; the inner margins 

 of the elytra are broadly chestnut-brown ; the dorsal (and 

 sometimes also the ventral) sm'face exhibits a light ground- 

 colour, upon which there are light brownish band-like mark- 

 ings ; sometimes the whole coloration is uniform ; in other 

 cases the elytrophora were of a deeper brown colour. The 

 largest animals of this form were of the size given also by 

 Malmgren for the Spitzbergen form, viz. 35 millims. in length 

 and 17 millims. in breadth, including the setge. 



The other race possesses a clearly marked coloration and 

 pattern. The elytra are broadly bordered with greenish grey 

 on the inner and hinder margins, and usually bear, at the 



* Sitzungsbericlite der phys.-medic. Societat zu Erlangen, June 7, 1871. 

 Translated by W. S. Dallas, F.L.S., from a separate impression communi- 

 cated by the author. 



