151 



ogsaa være smaa Variationer med Hensyn til Tænderne, 

 Retractorernes Udspring og Tilhængets Længde, — - saa at 

 vi ere komne til den fulde Overbevisning, at de Charac- 

 terer, Ehlers har angivet for sine to Arter, ikke ere 

 constante. 



ECMURWÆ. 



ECH1URUS (THALASSEMA) VULGARIS, Savigny. 



Forekommer i Christianiafjorden paa 5—10 Favnes 

 Dyb, Lerbund; og i Øxfjord (Finmarken) er der fundet 

 1 Exemplar. 



ECHIUBUS LÜTKENI1?, Dies. 



Dr. G. A. Hansen har fundet i Søndfjord paa 200 

 Favnes Dyb, seig Lerbund, to Exemplarer af en Echiurus, 

 som meget ligner den af Diesing beskrevne Echiurus 

 Liitkenii. Den afviger dog fra denne derved, at den er 

 meget større; — Kroppen er nemlig 46 Mm. lang, 20 Mm. 

 tyk, Snabelen 14 Mm. lang, 6 Mm. bred — at den i den 

 bagerste Ende af Kroppen har flere Pigge — 7 i det for- 

 reste, 6 i det bagerste Belte, og endelig at den har en 

 skidden hvid Farve baade paa Krop og Snabel. 



BONELLIDÆ. 



BONELLIA VIRIDIS, Rolando. 



Forekommer temmelig sjelden i Bergensfj orden og 

 .Korsfjorden paa en Dybde af 50—100 Favne, sandig Bund. 



of generation may be longer or shorter; sometimes there 

 may also be small variations with respect to the teeth, 

 the issue of the retractors and the length of the appendix, 

 — so that we have come to the full conviction that the 

 characteristics which Ehlers has given for his two species 

 are not constant. 



ECMURWÆ. 



ECHIURUS (THALASSEMA) VULGARIS, Savigny. 



Occurs in the Christianiafjord at the depth of 5 — 10 

 fathoms, clay bottom; and in Øxfjord (Finmark) one spe- 

 cimen has been found. 



ECHIURUS LÜTKENII9, Dies. 



Dr. G. A. Hansen has found in Søndfjord, at the 

 depth of 200 fathoms, on tough clayey bottom, two spe- 

 cimens of an Echiurus, which is very much like that de- 

 scribed by Diesing, Echiurus Liitkenii. It differs however 

 from this species by being much larger; — the body being 

 46 Mm. long, 20 Mm, thick, the proboscis 14 Mm. long, 

 6 Mm. broad — by having more spines in the posterior 

 extremity of the body — 7 in the anterior, 6 in the hinder- 

 most belt — and finally by having a dirty white color 

 both on the body and on the proboscis. 



BONELLIDÆ. 



JBONELLIA VIRIDIS, Rolando. 



Rather scarce in the Bergensfj ord and Korsfjord at 

 the depth of 50—100 fathoms, sandy bottom. 



