168 Mr. W. Small on Annelida Polijcliceta 



Genus LjiTMATONiCE, Kinberg, 1854. 

 LcBtmatonice JiUcornis, Kinberg, 1865. 



This species has been found on the western shores of tlie 

 British Isles and on the eastern coasts of Nortli America. It 

 lias been shown to inhabit tiie Faroe Chatniel and to extend 

 along tlie coasts of Norway, and it has been recorded from 

 Guernsey. All the localities from which the present speci- 

 mens have been taken are to the north of the Siietland 

 Islands. L. filicornis has therefore still to be recorded from 

 the North Sea south o£ the Pentiand Firth. 



In no example is the number of segments more than 30. 

 Marenzeller (1902, p. 5) gives as the number 32, " with 3 

 smaller ones." 



The palpi are in every case much longer than the median 

 tentacle. In no case are the palpi and median tentacle equal, 

 as Kinberg asserted. The palpi in many cases extend to the 

 tip of the extruded proboscis. They taper gently and regu- 

 larly to a point, except for a dilated portion near the tip. 

 They are clearly spinose, the sharp spines becoming smaller 

 near the tip of the organ. 



Many oi the present examples are small, from 5 mm. 

 upwards iti length, and these have sometimes pale bristles 

 and spines. The smallest forms were taken in May, and 

 were probably spawned in the previous season, most likely 

 during late autumn or winter. One specimen, taken in 

 September, had ova. 



Family Polynoidae. 



Genus Lepidonotus, Leach, 1816, char, emend. 

 M'lntosh, 1900. 



Lepidonottis squamatus, Linnaeus, 1766. 



This annelid was found in company with Aphrodita acii- 

 leata, Lagiscafloccosa, Savigny, Halosydna gelatinosa, M. Sars, 

 Gattyana cirrosa, Pallas, Evarne impar, Johnston, Nephthyds, 

 Glycerids, Terebellids, Glycinde nordmanni^ Mgrn., and 

 other annelids at different times. It is commonly distributed 

 around these shores, and it extends from between tide-marks 

 to deeper water than that from which any of the present 

 specimens have been dredged. 



The average length of the specimens is 2^ mm., and the 

 segments number 25. 



Professor M'Intosh (1000, p. 279) says it is probable that 



