EUNICE V1TTATA. 431 



the terminal piece is serrated and so is the edge of the enlarged end of the shaft. A 

 small process appears at the tip of the ventral cirrus at the twentieth and a larger at the 

 thirtieth and fiftieth, so that this may be a question of degree. The spines are yellow, as 

 in E. fasciata. 



A similar form comes from the ' Porcupine ' Expedition of 1870, sixty-five miles 

 W. of Valentia, S.W. Ireland, at a depth of 160 fathoms. The branchiae had only eight 

 branches as the maximum number, but the specimen is smaller. 



The same form with eight branches to the branchiae comes from an area twenty-five 

 miles N.N.E. from Unst, Shetland, in ninety-five fathoms, 1868 (Dr. Gwyn Jeffreys). 



A Norwegian Eunicid dredged by Canon Norman approaches E. fasciata in some 

 respects, the branchiae commencing on the fourth foot and extending to the thirty- 

 seventh foot or thereabout. The number of pinnae on the larger branchiae appear to be 

 much less than in E. fasciata, being only six to eight, generally six. 1 



So far as known E. fasciata does not harbour the crustacean entoparasites (Eunicicola 

 Clausii, Kurz.) found for instance in E. Glajjaredii. 



2. Eunice vittata, Belle Ghiaje, 1829. Plate LXIII, figs. 3 and 3 a— teeth ; Plate LXXIV, 

 figs. 10-10 b— feet ; Plate LXXXIII, figs. 7-7 £— bristles. 



Specific Characters. — Head pale, with an evenly rounded anterior margin of the fused 

 palpi, which, however, show a deep ventral furrow. Five long smooth tentacles. Eyes 

 large and black, in the normal position. Body slender, 2 — 3 ins. long. First segment 

 about thrice the breadth of the succeeding. The second bears two slender tentacular cirri 

 at its anterior border. Each in life has a white spot at its base. The anterior third or 

 fourth of the dorsum is pale brown, posteriorly it is pale fawn. The pale madder-brown 

 aspect anteriorly is due to the pigmentation of the general surface, and also to brownish 

 belts which cross the segment at the anterior border. A dark spot occurs at the base of 

 each foot. Branchiae commence on the third foot as a simple filament or two. On the 

 tenth foot there are four divisions, on the twentieth five, the same number being on the 

 thirtieth. The fortieth has four, the fiftieth two, and the sixtieth one, and so to the 

 eighty- seventh, the branchiae ceasing only on the last seventeen or eighteen segments. 

 Tenth foot has dorsally the cirrus with its supporting spines, the tips of which pass 

 into the cirrus beyond the origin of the branchiae, which show four nearly equal divisions. 

 Setigerous region bluntly conical, the points of two yellow spines projecting at the tip. 

 Superiorly are simple bristles slightly dilated at the commencement of the tapered, 

 serrated tip so as to give the organ the advantage of wings. Beneath the spines is a 

 dense tuft of compound bristles, the shafts being translucent, bevelled at the tip, and 

 marked by striae directed downward and backward. The terminal piece is rather broad 

 and short, is bifid, and has wings. Posteriorly the chief changes in the foot are the less 

 prominent condition of the setigerous region, the diminution in the number of the bristles, 

 and the presence of the powerful hook, the crown of which (above the fang) is often bifid. 



1 Marenzeller's remarks show that considerable confusion exists between this species and 

 E. torquata, E. Claparedii, and allied forms (' Sitzb. k. Akad. Wiss. Wien/ Bd. lxix, p. 57). 



