240 Dr. R. Koehler on the Littoral Fauna of the 



Aud. & Edw., common species under stones, especially tlie 

 first-named ; and Marphysa sanguinea, Aud. & Edw., which 

 is very common in the muddy sands of La Rocque, and also 

 under stones among- the rocks of the Dog-Nest and at the 

 Gr^ve d'Azette. It is to be remarked that the specimens 

 coming from the muddy sands break up with the greatest 

 facility either spontaneously or when they are immersed in 

 alcohol, while the specimens from rocky places scarcely ever 

 break up. We may note further Lysidice ninetta, Aud. & 

 Edw., and Lumhriconereis contorta and L. humilis, Quatref. 



Among the Nereidians I will mention, first of all, three 

 Nephthydians, namely, Nephthys Homhergii^ Aud. & Edw., 

 N. scolopendroides^ Delle Chi., and N. longisetosa, QErst. The 

 first species, as is well known, is common on all sandy shores, 

 in company with the Arenicolce. The other two species are 

 rare. The Nereids are represented by numerous specimens 

 of Nereis cultrifera, Grube, and N. Dumerilii^ Aud. & Edw., 

 and a few of Nereis {Praxithea) irrorata^ Malmgr. Behind 

 La Mothe I have also captured a specimen of Nereis Marioniij 

 Aud. & Edw. Aonia/bliacea, Aud. & Edw., and Nereilepas 

 lobulatus, Quatref., may also be mentioned. 



In pelagic fishings I have also collected numerous speci- 

 mens of an Annelide discovered at Dinard by M. de Saint- 

 Joseph, namely, Leptonereis Vaillanti, St.-Jos. 



The family Syllidia is represented by Syllis amica,Qna.tvGL, 

 and S. divaricata, Kef., Grubea fusifera, Quatref., Clapa- 

 redia filigera^ Quatref., and other small species which live 

 among the Fuci and Corallines. 



Among the Phyllodocians I may mention Eulalia clavigera^ 

 Aud. & Edw., a common species, with which is sometimes 

 associated Eteone longa, Sav. On the Greve d'Azette I have 

 also captured some fine specimens of Phyllodoce laminosay 

 Sav. 



The Glycerians are represented by Glycera capitata, (Erst., 

 and G. lepidum, Quatref., both of which are rather rare. 



I will cite further Aricia Cuvieri^ Aud. & Edw., very 

 common in the muddy sand at La Rocque; Cirratulus 

 Lamarckii, Aud. & Edw., very frequent; Siphonostomum 

 uncinatum^ Quatref., also a very abundant species ; Ophelia 

 bicornis, Sav., which I did not myself find, but of which four 

 specimens were brought to me one day by a fisherman, who 

 told me that he had collected them at La Rocque, without 

 giving me any further particulars ; and, finally, Leucodore 

 ciliata, Johnst., a species which does not appear to be very 

 common. 



Among the Sedentary Annelides it is hardly necessary to 



