506 REPORT ON ZOOLOGY, MDCCCXLIV. 



duo ; pinnae duse discretae, branchia superior liorizontalis in 

 appendice pinnae superioris verticali affixa, niaximara dorsi 

 partem obtegens ; branchia inferior in apice pinnae inferioris 

 verticalis. Mamilla ad basin pinnae inferioris. Of all these 

 Danish Annulati, seven species occur also in France. 



Oersted's work on the dorsibranchiate Annelids of Green- 

 land, of which an abstract had been previously published 

 (vid. Archiv, 1843, Bd. ii, p. 289), has now appeared in a 

 complete form. (Gronlands Annulata dorsibranchiata, 1843.) 

 (The text, except the Latin Diagnoses, is in the Danish 

 language.) As a contribution to the Fauna of Ireland, 

 Thompson has enumerated (Annals Nat. Hist, xiii, 1844, 

 p. 437) sixteen branchiate Annelids, from the genera : 

 Phyllodoce, Syllis, Nephtys, Campontia, Cirratulus, Trophonia, 

 Terebella, Sabella, and Serpula. 



The coast of Norway has been explored with reference to 

 its Annelids by Rathke (Nov. Act. Acad. Leop. Car. Nat. 

 Car. t. xx, p. 1, 1843, p. 149), who has there found Poly not 

 squamata, Sav., levis, Aud. et Edw., and cirrata, Sav., Nereis 

 pelagica, Lin., Dumerilii, Aud. et Edw., Phyllodoce lami- 

 nosa, Sav., and clavicjera, Aud. et Edw., Amphitrite auricoma, 

 Miill., Terebella cirrata, Cuv., Cirratulus borealis, Lam., 

 Sabella octocirrata, Sars, pemcillus, Cuv., and liber a, Sars, 

 and Lumbricus lineatus (?), Miiller, together with several 

 altogether new animals, which have been described with the 

 following diagnoses. Sigalion Idunffi : squamis dorsum 

 omnino tegentibus ; antenna impari ad basin appendicibus 

 dnabus parvis flexuosis. Nereis grandi folia : ligulis branchi- 

 alibus prsemagnis, tenuibus, obtusis ; extremitatum cirro 

 superiore, longo crenulato. This Nereis is afterwards 

 (Archiv, 1844, Bd. i, p. 258) declared by Rathke to be 

 identical with Heteronereis arctica, of Oersted. Besides 

 these there are, new Nereis Sarsii : ligulis branchialibus 

 triangularibus, tenuibus, acutis ; cirro superiore segmento 

 primo secundo aliquanto majore. Sytlis cornuta : flavescens, 

 capite longiori, fronte profunde excisa, oculis in unam seriem 

 dispositis. Syllis tigrina : vittis alternantibus fuscis et albis in 



