LYCIDICE. LUMBRINERIS. 141 



2. L. rufa, head obtuse, bilobed ; the fourth segment pellucid- 

 white, slightly swollen, forming a sort of collar, which appears in 

 some degree to sheath those before it, in contraction. Length 

 H-2"; breadth 1'". 



Lycidice rufa, Gosse in Ann. Sf- Mag. Nat. Hist. ser. 2. xii. 385. 



Hab. " Found on an oyster dredged off Lee, near Ilfracombe." — 

 P. H. Gosse. 



Desc. "Length 1^ in. to 2 in. ; width ^ in. Segments seventy. 

 Body subcylindrical, almost equal in thickness throughout, and not 

 at all diminishing posteriorly. Head of two rounded lobes, notched 

 rather than divided. Eyes two, round, black. Antennae three, of 

 the same form and size, rounded and constricted at the base, conical, 

 pointed, white ; the central one in advance of the others, without 

 any accessory tubercle. First segment about half as long again as 

 the following. The feet commence on the third segment. The 

 fourth segment is pellucid-white, slightly swollen, and appears in 

 some degree to sheath those before it, in contraction. Feet rounded 

 and obtuse. Superior cirri conical, reaching just beyond the foot ; 

 inferior cirri small. Bristles white ; aciculi black : they continue 

 to the very last segment, which is as large as the rest, truncate, with 

 a central depression, with no terminal styles or tubercles. Jaws 

 deep black, visible through the rings, but often protruded, and 

 widely expanded. Colour above indian-red, each segment studded with 

 numerous white round dots ; some of these begin, about the fifteenth 

 segment, to arrange themselves in a line across the middle, and this 

 transverse line becomes more conspicuous on the following segments, 

 and forms a ridge. The crimson contents of the dorsal vessel are 

 visible as a medial dark red line down the body. Head whitish, 

 dotted with brown. Under-parts pearly, mottled with purplish-red 

 on the anterior half. 



" The bristles of the ventral bundle are of the form which MM. 

 Audouin and Milne-Edwards have called 'poils en serpe,' the staff 

 of which is dilated at the extremity and very obliquely truncate, 

 and the accessory piece knife-shaped, with the tip and the keel pro- 

 jecting, and a small but well-marked straight tooth near the tip ; a 

 slender lamina just embracing all. This form differs specifically 

 from that figured by them as belonging to Lycidice ninetta." — 

 " Others are simple lancets," " except that the dilated head has but 

 one curvature, and that the point is drawn out to much greater 

 length and fineness." — Gosse. 



(a) Falmouth. 



10. LUMBRINERIS. 



Lumbrineris, Blainv. in Diet, des Sc. nat. Ivii. 486. Aud. Sf M.-Edw. 



Litt. de la France, ii. 164. 

 Lumbrinereis, Edwards in Lam. An. s. Vert. 2ude edit. v. 566. 

 Lumbriconereis, Grube, Fatn. Annel. 45. 



Char. Body elongate, cylindrical, with numerous narrow segments, 

 the first and sometimes the second apodous : head exposed, in the 



