ANNKLIDA. IQy, 



Sars, whicli often distends the stomachs of large cod, to the 

 smaller Nereis pelajica and K cuUrifera) are universally 

 eaten. The somewhat uninviting Trophonin plumosa some- 

 times forms the sole food in the stomachs of large haddocks, 

 many hundi-eds occurring in a single fish. Owenia filiformis, 

 with its gravelly tubes, is a favourite diet of the same fish, 

 and of cod and flounders. The Terebellidje and their sandy 

 tubes are also largely devoured ; and even Serpulida are not 

 passed by. Moreover, in their young or larval forms they 

 constitute an important element in the food of the herring and 

 other fishes that feed near the sui-face of the water. 



Many of the annelids of St. Andrews are common to the 

 whole British area ; but some have not yet been found in other 

 parts of our seas : as this, however, is probably due to a larger 

 amount of attention having been directed to the locality, we 

 shall not at present particularize. 



The fauna at St. Andrews is distinguished, as far as our 

 present knowledge extends, from the Zetlandic by the absence 

 of such striking forms as Lcetmonice, PanthaUs, Nothna 

 conckykga, TereheJla nehuhsa, Pista cnstata, Trickobmnchm 

 glacialis, and Ditrypa arietina ■ from that of tlie western 

 regions by the absence of Sjnnther, Lepidonotus clava, Pohj- 

 tioe scolopendrina, Ophiodromus vittatus, Gattiola spectahilis, 

 Terebella nehuhsa, and Pista cristata; and of the southern' 

 types we miss Euphrosyne, Hermione, Polynoe areoJata, Nereis 

 Mariomi, Lysidice ninetta, the Eunicidaj, the abundance 

 of the Chffitopteridaj, Sahellaria alveolata, Leprcea textrix 

 Sabella saxicava, Protula, and Filigrana between tide-marks! 

 The great preponderance of Polynoe floccosa in the south is 

 also an interesting feature. 



Amongst the annelids that, besides other very commun 

 forms, abound at St. Andrews, and therefore most cliaracteristic 

 ot It, are Sigalion Mathildoi, Sthenelais limicola, Phyllodoce 

 laminosa, P. granlandica, Nereis cullrifera,Alittavirens, Auto- 

 lytus pictus, Aricia Cuvieri, Ophelia limacina, Trophonia plu- 

 mosa, Nerine foliosa, Polydora ciliata, Capitella capitata 

 Sahellaria spinulosa, Pectinaria helgica, Lanice conchilega, 

 Sabella pavonia, and Branchiomma vesiculosum. 



Some of the phosphorescent forms at St. Andrews have 



