40 



Cirratulus abyssorum, n. sp. 



Stat. XI. 



3 Exemplarcr. alle iitiildstæiulij!;i'. lulcii Bafit-iuK'. Det 

 iiiindste Exemplar har ingen Branchier: at" de to andiv 

 liar det største foruden paa forreste Led ogsaa enkelte 

 Branchier fastha>ngende ])aa de bagenforligpiende Led. saa 

 langt som til .Snte Led. Hi)vedla])])en konisk; ingen hor.ste- 



lose Segmenter bag 



(T. YIT. Pig. 33). Leddene 



ere meget smale og bære jjaa hver Side 2 Bundter temlig 

 lange og meget tynde Haarborster. der sidde i to meget 

 sniaa Knuder (T. VII. Fig. 34). Farven er ved den gjeu. 

 iiemskinnende Tarmkanal tiinnlig; Huden selv er farvelos. 



Cirratulus (?) abranchiatus, n. sp. 



Stat. 31. 



3 Exemplarer. 1 4""" lang. 3""" bred. Krojipen aflang, 

 tilspidset i begge Ender, sammensat af smale Led med 

 lange, tynde Borster (T. VII. Fig. 1). Hovedet en liden 

 afstumpet Kegle unden Tilhæng og Øine; bag dette et 

 bredt og 2 smale børstelose Segmenter, der sammen med 

 Hovedet danne en konisk Fremragning paa de bagenfor 

 liggende bredere, borsteforende Segmenter (T. VII. Fig. 2). 

 Munden paa Undersiden af Hovedet. Hvert borsteforende 

 Segment bærer paa hver Side en langagtig Freim-agning 

 med en liden Mamille paa den ovre og nedre Ende. i hvilke 

 sidde de to Bundter meget lange og tynde. fuldkomment 

 glatte Kapillærbørster (T. VII, Fig. 4). Der er intet 

 særligt afgrændset Svælg ; Tarmen gaar lige gjennem Krop- 

 pen, fastheftet med tynde Dissepimenter. Blodkar kunde 

 ei opdages, heller ikke Segmeutal-Organer. 



Trods den fuldstændinge Mangel paa de for Uiiratu- 

 JiiJvniv karakteristiske Branchier, synes dette Dyr dog ved 

 sin Bygning forresten at staa denne Slægt nærmest. 



Clymene Koreni, n. sp. 



Stat. ST. 



1 Exemplar, vel 2 ctm. langt og 1""" tykt. 18 borste- 

 bærende Segmenter, ingen nogne anteanale Segmenter. 

 Hovedet hvælvet. med en smal paa Ilegge Sider indskaaret 



Cirratulus abyssorum. ". sp. 



Stat. S7. 



Thi-ee defective sjiecimens. the posterior exti-emity 

 gone in eacli. The smallest specimen has no branchiæ; 

 in the largest of the two other exanij)les. a, few branchiæ 

 ai'e still attached to the segments, as far as the 3(>th seg- 

 ment. The lol)e of the head conical: no naked segments 

 behind it (Pl. A'11. tig. 3.'»). The segments exceedingly 

 slender, bearing on either side 2 fascicles of comparatively 

 long and exceedingly delicate capilliform bristles, arranged in 

 two very small ])rotuberances (PI. VII. fig. 34). Colour 

 greenish white, the intestinal canal shining through the 

 skin: the skin itself is colourless. 



Cirratulus i?) abranchiatus. n. sp. 

 Stat. 31. 



Three specimens, measuring 14""" in length and •'"'" in 

 breadth. Body, oblong and pointed at the extremities, 

 built up of slender segments, bearing long, delicate bristles 

 (PL VII. tig. 1). The head a small obtuse cone, without 

 either eyes or appendages; posterior to the head. 1 broad 

 and 2 narrow, naked segments, which, along with the head, 

 constitute an acuminate projection on the posterior broader 

 bristle -bearing segments (PI. VII. fig. 2). The buccal 

 aperture on under surface of head. Each bristle-bearing 

 segment having on either side an elongate projection, fur- 

 nished w ith a small mammillifoiin tubercle both at the upper 

 and the lower extremity, in which are seen the two fasci- 

 cles of exceedingly long, slender, and perfectly smooth cap- 

 illary bristles (PL VII. fig. 4). There is no separate 

 pharynx; the intestine passes straight through the body, 

 to which it is attached by slender membranous filaments. 

 No blood-vessels were detected, or segmental organs. 



Of the branchiæ distinguishing this genus, there is 

 indeed not a trace in the animal here described; but its 

 general sti'ucture nevertheless l)rings it nearest to the 

 CirraMidæ. 



Clymene Koreni, 



Stat. M. 



n. sp, 



in length and l"" 



2 - r 



One specimen, a trifle over 2'' 



in thickness. Furnished with 1^ ])ristle-bearing segments; 



no naked i)re-anal segments. Head convex, with a narrow 



