LUMBRICONEREIS G. 387 



The tenth foot (Plate LXXXII, fig. 6) is bi-papillose, a small conical papilla occurring 

 in front and a larger obliquely conical papilla behind. Between them the fascicle of 

 bristles projects. The tapering bristles have the usual wings, and the point is moderately 

 attenuate. The winged hooks are jointed and have comparatively broad wings on the 

 distal end of the shaft. In some a slight incurvation of the distal wings is evident, as in 

 the figure. The foot has two or three pale spines. 



In a mounted example dredged in Torbay, apparently referable to this species and 

 forwarded by Major Elwes, the posterior region of the head and every subsequent 

 segment is, in the transparent preparations, studded with large brownish-red, clearly 

 defined pigment-cells, so far as can be observed, lodged in the hypoderm. The entire 

 animal, with the exception of the anterior region of the snout, the segment- junctions, and 

 the last five segments, thus has the aspect of being studded with eye-spots. Even the 

 pygidium has a spot on each side at its anterior border. 



The jointed hooks continue to the fifteenth foot and then disappear, their place being 

 taken by simple winged hooks which at the thirtieth foot (Plate LXXXII, fig. 6 a) have a 

 stout shaft and rather broad wings, whilst the terminal hook in those best developed is 

 strong, the crown behind it having three or four erect spines in lateral view. Some of 

 the dorsal bristles (inferior dorsal) are very attenuate towards the tip, as shown in the 

 figure. Two pale spines occurred in the Norwegian example from which the thirtieth foot 

 was drawn. 



Several fragments, viz., from the deeper water off St. Andrews, from a depth of one 

 hundred fathoms in St. Magnus Bay, Shetland, and from the western coast of the Isle of 

 Man, approach this species. 



The L. coccinea of Renier, Xardo, and Grube comes near this species. 



Pruvot and Racovitza 1 term the maxilla of this and previous communications the 

 mandible, the great dental plate maxilla 1, and the two plates in front respectively 

 maxilla 2 and maxilla 3. The mandibles are called "labre." They give a careful 

 account of Lumbriconereis coccinea, a form which comes very near L. gracilis, and their 

 remarks on the dental apparatus are specially interesting. 



6. Lumbriooneeeis G. Fragment. Plate LXII, fig. 5— head ; Plate LXXIV, figs. 2 and 3 

 —feet ; Plate LXXXII, figs. 7 and 7 a— bristles. 



Specific Characters, — Head and body typical. The armature of the proboscis differs 

 from that of L. gracilis in the marked shoulder externally on the maxillae, and in the 

 broader posterior appendages. 



At the tenth foot the anterior border (seen in profile) forms a blunt cone, beyond 

 which the posterior lobe appears as an irregular flap. Bristles translucent simple winged 

 forms. Hooks, so far as the fragmentary example shows, with curved shafts dilated 

 distally to the commencement of the wings, then tapered to the neck, the tip having a 

 short main fang and a series of spikes above it. 



Habitat. Procured in Trawl 2, on board the 'Knight Errant' in 516 fathoms, 



August 24th, 1882. 



Arch. Zool. exper./ 3 e ser., t. iii, pp. 374—384. 



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