172 Mr. W. Small on Annelida PolyclicBta 



Among the present examples there is a considerable 

 diversity of colour. Several forms are almost black in 

 jieneral appearance, while others are of a pale pink colour. 

 These differences occur indiscriminately amons^ normal 

 forms and examples of the variety, and are probably due to 

 the length of time the annelid has been in the preserving 

 fluid (formalin). 



Though it is conjectured that the breeding-season of 

 L.floccosa is in the winter, none of the specimens taken in 

 November have ova. The "parasitic granular growth '' 

 mentioned by M'Intosh is always present, especially on tiie 

 dorsal bristles. 



Lagisca elisahethce, M'Intosh, 1900. 



Of this species only one anterior fragment, 7 mm. long, 

 occurred. It was taken in the same haul as Eunoa nodosa. 

 It has hitherto been recorded only from St. Andrews. 



Tiie markings of the head described by M'Intosh (1900, 

 p. 303) are not found in their entirety in the specimen. 

 The pale band occurring posteriorly and defined by the collar 

 is absent, while the median band of the same shade is 

 indistinct. The median tentacle is of the same length as the 

 dorsal tentacular cirrus and has a filiform tip and cilia, long 

 and clavate, like those of the tentacular cirri. Its base is 

 expanded and fits closely between the lateral peaked parts of 

 the head. The palps are sparsely supplied with minute 

 papillae and have massive bases and elongated filiform tips. 

 In the present specimen the tentacular cirri are relatively 

 larger than they are shown to be in the drawing of the head 

 of this species in Prof. M*Intosh's monograph (1900, pi. xxvii. 

 tig. 3). The same remark applies to the tips of the cirri, 

 lateral tentacles, and palps. 



The markings on the dorsum of the fragment are indis- 

 tinguishable. 



When, however, the feet, cirri, and setae are examined, 

 there can be no hesitation in identifying the specimen as a 

 fragment of Lagisca elisahethw, M'l. The dorsal cirri have 

 two kinds of cilia, the shorter and proximally placed, and the 

 larger with expanded tips. The dorsal setae occur in a mass, 

 are pale and slightly curved, while the ventral have fairly 

 long shafts with characteristic terminations. 



The present form corresponds to the Lagisca elisahethce of 

 M'Intosh (1900, p. 303) and to the Polynoe aspera of Hansen, 

 described by Theel (1879, p. 10). It differs from both in the 

 condition of the palps. These, in the form from St. Andrews, 



