HAEMOTHOE FRASER-THOMSONL 337 



cirrus is somewhat enlarged at the base, filiform at the tip, and with rather long papillae 

 sparsely distributed. 



Synonyms. 



1876. Harmothoe Haliaeti, Mcintosh. Trans. Zool. Soc, ix, p. 384, pi. lxix, f. 7 — 10. 



1885. „ ,, idem (partim). ' Challenger 3 Annel., p. 96. 



1886. ,, „ Harvey-Gibson. Yerm. Liverp., 149. 



1891. Polynoe (Harmothoe) Haliaeti, Hornell. Op. cit., 232, pi. xiii, f. 5. 



Habitat. — The first specimen was procured in the Minch in July by Dr. G-wyn 

 Jeffreys, who did so much in dredging examples of the British Annelids. 



In a posterior foot the dorsal branch bears a series of rather long, slender, slightly 

 curved, bristles with conspicuous rows of spines (Plate XXXVIII, fig. 27). Such y / 

 bristles, when viewed antero-posteriorly, present a much narrower aspect than when /> /C <■ 



seen in profile. The arrangement of the spinous rows is alternate, as in the ventral 

 bristles. Only a very small portion of the tip is smooth — a feature of moment when it 

 is contrasted with the larger and longer tip of H. Fraser-Thomsoni. The dorsal bristles 

 are often coated with a brownish granular substance and algoid growths. The superior 

 ventral bristles have elongate spinous portions and slender tips (Plate XXXIX, fig. 1). 

 At first the bifid tips are almost straight or very slightly curved, but they soon become 

 more characteristic (Plate XXXIX, fig. 2). The fades of the tip is even more 

 diagnostic in the inferior series (Plate XXXIX, fig. 3), where the spinous region is 

 distinctly curved. In the superior group the secondary process is nearly straight, but 

 in the others it bends outwards at the tip, which has a distinct hook. 



The inferior cirrus is enlarged at the base, slender and filiform distally, and 

 furnished with rather long papillae sparsely distributed. 



Hornell found an allied form at Port Erin, Isle of Man, in fifteen fathoms. He 

 describes the scales as densely fimbriated round the border after the manner of 

 Lepidonotus squamatus, so that there is need for further investigation as to the condition 

 in this respect. Unfortunately this specimen could not be found in the collection at 

 Liverpool, and the others are incomplete. 



7. Haemothoe Feasee-Thomsoni, 1 Mcintosh, 1396. 



Specific Characters. — Head somewhat resembles that of Lagisca, having a pair of 

 widely separated eyes posteriorly, and a larger pair on the lateral eminence. Median 

 tentacle absent. Palpi of moderate length, with rows of minute papillae. Body of 

 considerable length and breadth ; bristled segments thirty-nine to forty. Dorsum has 

 touches of brown pigment posteriorly as in Lagisca. The lateral segmental eminences 

 are prominent, but there is no process. Scales mottled brown, fifteen pairs, covering 

 the dorsum; first small and rounded, rest more or less ovoid; border smooth, anterior 



1 Named after my early and valued friend, the late Dr. Fraser Thomson,, of Perth. 



