266 DR. A. WILLET ON LITTORAL POLYCH.'ETA 



26. CiREATrLA CAPENSis, Schmarda. 



Cirratulus capensis, Scbmarda, 1861, Neue wirbellose Thiere, ii. p. 56 ; Mcintosh, 1885, ' Challenger' 

 Polvchteta, vol. xii. p. 383; Marenzeller, 1888, Polychaten der Aiigra Pequena-Bucht. 



Segments lst-3rd achsetoiis, 4tli-28th with capillary setae only, 29tli ventral aciculae 

 commence, 41st dorsal aciculae commence ; on the dorsum of segments 6 and 7 on each 

 side an acervus of about 20 branchial filaments with slender insertions and thickened 

 extremities ; then for about 20-25 segments branchise occur in eacli segment, 

 afterwards becoming more and more irregular, reaj)pearing in greater numbers and with 

 more dorsad insertion towards the posterior end ; ventral aciculae 5, sometimes 3, in a 

 fascicle ; a few capillary setae occur throughout the length of the body in the ventral 

 fiiscicles; the ventral aciculae are stout and strongly curved; dorsal aciculae slender 

 and nearly straight ; eye-spots on sides of head; length 114 mm., width 5-8 mm.; 

 colour in life, orange. 



Numerous examples off Woodstock beach, Table Bay. 



27. Flabelligera luctator, Stirapson. 

 Cf. Marenzeller, 1888, op. cit. p. 15. 



Large pro-eminent brown hooks {festucce), one to each segment, with one in reserve ; 

 setae of fiabellum numerous ; dorsal surface convex, smooth, about 46 segments without 

 the fiabellum, attenuate behind ; length 33 mm., maximum width nearly 5 mra. 



I cannot properly distinguish this species from the northern F. affinis, M. Sars. 

 It is evidently the Cape form of the species, and I think the name should read F. affinis 

 luctator. Of course, F. affinis capensis would be the more appropriate designation, but 

 it would probably introduce confusion, as the name luctator has been applied to the 

 Cape members of this race of Flabelligeridae. 



Seven specimens among roots of sea-bamboo off Woodstock beach ; five specimens 

 from St. James, False Bay. 



28. Lipobeanchus capensis, sp. n. (Plate 13. figs. 23 & 24 and Plate 14. fig. 14.) 



A single specimen of a small black Scalibregmid with white transverse head was 

 collected between tide-marks amongst rocks at St. James, False Bay, by Mr. W. F. 

 Purcell. 



I submitted this worm to Dr. J. H. Ashworth *, who pronounced it to be unlike any 

 of the Scalibregmidae known to him. 



There are 4 fascicles of setae in all segments commencing immediately behind the 

 head ; setae of two kinds — simple, smooth, capillary setje and furcate setae ; a fringe of 

 papillae surrounds the terminal anus ; branchiae absent ; more than 60 segments. 



The collection also contains a Capitellid (tube No. 87) from roots of sea-bamboo off 

 Woodstock beach, which I was unable to identify. 



* Ashworth, J. H., " The Anatomy of Scalihrei/ma injlatum. Kathke," Quart. Journ. Micr. Sci. vol. xlv. pp. 237- 

 309 ; see p. 297, on the family Scahhregiaidae. 



