186 PROCLEA GRAFFI. 



considerable distance behind these. Sixteen setigerous processes with bristles. Second, 

 third and fourth segments have side-lobes, the second and third best developed. 



First bristle-tuft is on the fourth segment. The anterior bristles in two series, the 

 longer with straight shafts, which at the commencement of the wings have a slight 

 curvature. The shorter series show translucent, flattened tips, not differentiated into 

 wings. The succeeding bristles have only the flattened, translucent tapering tip — some- 

 times with a longitudinal streak. In the last eight the shorter tufts show pectinate 

 tips. The outline of the hook approaches that of Lessna, the crown being large, with 

 about seven distinct teeth above the main fang. The prow is minute and conical, and 

 a similar small conical process exists posteriorly with a deep notch above it. The 

 posterior border is convex. All the rows of hooks behind the bristles are single. 

 JNTephridia in the third, sixth, seventh and eighth segments. 



Synonyms. 



1884. Lesena Grafjii, Langerhans. Zeitsclir. f. w. ZooL, Bd. xl, p. 262, Taf. xv, fig. 21. 



1894. Proelea „ Be St.- Joseph. Ann. Sc. nat. ; 7 e ser., t. xvii, p. 180. 



1899. Solowetia Malmgreni, Ssolowiew. Ann. Mus. Acad. Imp. St. Petersburg, t. iv, p. 195. 

 1912. „ „ Wollebgek. Skrift.'Selsk. Krist., Bd. ii, p. 74. 



1914. Proelea Graffi, Southern. Proc. Roy. Irish. Acad., vol. xxxi, No. 47, p. 120. 

 1917. „ „ Hessle, Zool. Bidr. Uppsala, Bd. y, p. 199, Text-fig. 53. 



Habitat. — Dredged in Clew Bay in 10 — 11 fathoms on a sandy bottom (Southern). 



Abroad it has been met with in the White Sea and Franz Joseph Land (Ssolowiew) ; 

 shores of France (De St. Joseph) ; Norway (Wollebaek) ; Swedish West Coast (Malm) ; 

 Finmark (Hessle). 



The cephalic region presents ventrally two frilled lamellae — one on each side of the 

 mouth instead of the usual continuous lamella, though a rupture of the base may have 

 taken place. Above this is the flattened surface from which the grooved tentacles arise. 

 The buccal segment has behind the mouth a small semicircular lamella split in the 

 middle. 



The body is about an inch in length, enlarged anteriorly and tapering to the posterior 

 end, which is imperfect, and has a characteristic Terebellid aspect. It is rounded dorsally, 

 slightly flattened ventrally, on which surface is a median groove. Anteriorly the ventral 

 surface has about ten scutes, the first four being, however, very narrow, almost 

 linear. To the exterior of these are the rows of hooks, which are of considerable 

 breadth, and at the dorsal edge are the sixteen setigerous processes with the bristles. 

 Smaller scutes occur in the median groove a considerable distance backward. Behind 

 the anterior region the uncinigerous lamellae and the setigerous processes are separated 

 by considerable intervals, the former continuing as prominent papillae to the posterior 

 end (fragmentary). 



The first bristle-tuft commences on the fourth segment (Southern). The pale golden 

 anterior bristles (first eight) consist of a longer series with nearly cylindrical straight 

 shafts, which at the commencement of the wings have a slight curvature and taper to a 

 fine, hair-like tip (Plate CXXVI, figs. 10 and 10'). A shorter series projecting little 

 beyond the surface shows translucent, flattened and slightly curved tips, which are not 



