392 DRILONEREIS. 



St. Andrews Bay by E. M. in 1869. In this specimen the two globular papillae are situated 

 very close together. The condition of the feet is unsatisfactory, but the setigerous 

 region seemed to be bilobed and rather truncated at the tip. The simple winged bristles 

 appeared to be the same as in that from the stomach of the cod. The winged hooks had 

 shorter tips at the twentieth foot, and the first fang was hardly distinguishable in size 

 from the small hooks above it. No black spines existed in this example, but it was much 

 smaller than the other. The anterior hooks have a smaller main fang than in the 

 posterior segments, indeed, anteriorly it is scarcely to be distinguished from those 

 above it. 



Delle Chiaje * gives a figure of a greenish form with a head somewhat like Zygolobus, 

 but it has black specks at the bases of the feet. Its relationship with this form, however, 

 is uncertain. 



Grube's 2 example was 9 ins. long. He did not examine the proboscis, and his figures 

 of the bristle and hook are too small for accurate work, and, indeed, he appears to have 

 seen only the posterior hooks, since the contour of the terminal region is described and 

 figured as rounded. 



Claparede's Lumbriconereis Edwardsii (' Beobach. ii. Anat.,' 1863) approaches this 

 species very closely, only it has compound bristles, which this has not. 



The L. tingens of Keferstein, however, has simple bristles, but they differ from those 

 of the British species. 



From the remarks of Claparede in his ' Glanures,' 8 it would seem that the bristles 

 and hooks of Z. laurentianns, Grube, are simple, and the dental armature resembles that 

 of the author's Z. Edwardsii. In the other species, termed by Claparede Z. Grubianus, 

 which has similar coloration to the former, each segment, however, having transverse 

 brown stride, the inferior hooks are articulated. 



B. EUNICEA PEIONOGNATHA. 



B. 1. Eunice a prionognatha monocopa. 



Ehlers (1868) thus describes the group : Head naked, two segments without feet. 

 Foot devoid of dorsal and ventral cirri, with simple bristles, the broad terminal wing of 

 which is serrate. Upper jaw long and dagger-like. Five pairs of jaw-plates, accessory 

 jaws, the first pair with hook at tip. Mandible shorter than the foregoing, each half 

 being wide. 



Genus LX.V. — Drilonebeis, Claparede, 1870. 



Head and body as in Lumbriconereis. Proboscis with four pairs of symmetrical 

 teeth: tooth I hook-like; tooth II declining; two maxillas with long, slender, posterior 

 appendages, great dental plates denticulated ; mandibles wedge-shaped, and of the con- 



1 f Descriz./ Tav. 155, fig. 14, 1841. 



3 < Arch. f. Naturges./ 1863, p. 40, Taf. iv, fig. 3 and 3a. 



3 P. 115, pl.iv, fig. 2. 



