Annelida of St. Andrews. 199 



Nereis cultrifera, Grube ; Ehlers, Die Borstenwiirmer, 

 ii. p. 461, pis. 18-20. 



Frequent between tide-marks nnder stones on muddy 

 ground, and in the stomachs of various fishes. 



Nereis Dumerilii, Aud. & Ed. ; Ehlers, op. cit. p. 535. 



It is curious that only the epitocous form (olim Tphinereis 

 fucicola) has yet occurred, viz. in the coralline region and on 

 the West Sands after storms. 



Genus Hediste, Mgrn. 

 Hediste diversicolor, O. F. Miiller ; Mgrn. op. cit. p. 49. 



Occasionally between tide-marks, and after storms on the 

 West Sands. 



Genus Eunereis, Mgrn. 



Eunereis longissima, Johnst. ; Mgrn. op. cit. p. 57. 



Occasionally cast ashore on the West Sands after storms. 

 This is an epitocous form, the relations of which are at present 

 in obscurity ; there is no known species with which it may be 

 connected except those mentioned here. 



Genus Nereilepas, Blainville. 

 Nereilepas fucata, Savigny ; Mgrn. op. cit. p. 53. 



Abundant on the coralline ground, chiefly in company with 

 Pagurus in Buccinum. It also occurs in the stomachs of 

 various fishes. 



Genus Alitta, Kinberg. 



Alitta virens, Sars ; Mgrn. op. cit. p. 56. 



Sometimes thrown in large numbers on the West Sands 

 after storms, and not uncommon in the stomachs of cod. 



Fam. 13. Lumbriconereidae. 



Genus Lumbriconereis (Blainv.), M.-Edwards. 



Lumbriconereis fragilis, O. F. Miiller; Mgrn. op. cit. p. 63. 



West Sands after storms, and in the stomachs of haddock 

 and flounders. Not rare. 



Lumbriconereis Laurentiana, Grube, Archiv f. Naturg. 

 Bd. xxix. 1863, p. 40. 



Stomachs of cod and haddock. 



