134 EUNICE. 



5. E. gigantea. 



Dr. Williams mentions this as a native of the south coast of 

 England, — "a worm which probably attains less gigantic propor- 

 tions in this comitry than in the southern parts of the coast of 

 France." — Rep. Biit. Assoc. 1851, 184. Dr. Williams afterwards 

 informs us that he had never found an example of the species on 

 our coasts ! — Ibid. 209. It is well figured by Blainville in the 

 *Faune Fran9aise,' Chetopodes, pi. 14. 



** No tentacular cirri on the second segment. 



6. E. sangninea, head bilobed in front ; antennae smooth ; bran- 

 chiae commencing about the 20th, and ceasing about the 155th 

 segment, with four or five pectinations ; dorsal cirrus scarcely 

 reaching beyond the setigerous foot ; ventral cirrus bulged at the 

 base, and rounded at the apex. Length 15" or even 24" ; as thick 

 as a man's finger. 



Nereis sanguinea, Montagu in Linn. Trans, xi. 20. tab. 3. f. 1. 

 Nereidonta sanguinea, Blainv. in Diet, des Sc. nat. Ivii. 477, Atlas, 



pi. fig. 2. 

 Leodice sanguinea. Lam. An. s. Vert. v. 323 ; 2nde edit. v. 563. Stark, 



Elem. ii. 137. 

 Leodice opalina, Savign. Syst. Annel. 51. 

 Eunice sanguinea, Aud. Sf M.-Edw. Litt. de la France, ii. 147. Fleming 



in Encyclop. Brit. edit. 7- xi. 219. 



Hab. South coast of England, near low-water mark. 



Attains the length of 15" or even 24", with the thickness of a 

 man's thumb ; and from its bright colouring when alive, and the 

 highly margaritaceous iridescence which even dead specimens retain, 

 the worm is certainly the Saul of its tribe. The head is small, 

 formed of two globular lobes. Antennae five, setaceous, subequal, 

 smooth. Mouth inferior, powerfully armed. Post-occipital segment 

 twice as long as the follovdng, smooth, plaited on the ventral side. 

 Second segment narrow, apodous. The eight succeeding segments 

 have small lobular feet, which become larger on the next twenty, 

 and these are all abranchial. The branchiae are at first small, and 

 gradually attain their maximum development about two-thirds of the 

 entire length of the body, when they again diminish in size as they 

 approach the tail, the segments of which are ebranchial. Anal seg- 

 ment with two styles. The body is depressed, and nearly equally 

 convex on both surfaces. The segments are narrow, smooth, or 

 somewhat rugose transversely, which may be owing to the action of 

 the preservative fluid ; and the nacred skin glows with green, blue, 

 and yellowish reflexions. 



Desc. "Body long, slightly depressed beneath, and acuminated 

 towards each end, but much more so at the posterior extremity ; the 



