40 



Cirratulus abyssorum, n. sp. 



Stat. 87. 



3 Exemplarer, alle ufuldstændige. uden Bagende. Det 

 mindste Exemplar har ingen Branchier; at' de to andre 

 har det største fortiden paa forreste Led ogsaa enkelte 

 Branchier fasthængende paa de bagenforliggende Led. saa 

 langt som til 30te Led. Hovedlappen konisk ; ingen borste- 

 lose Segmenter bag samme (T. Vil, Fig. 33). Leddene 

 ere meget smale og bære paa hver Side 2 Bundter temlig 

 lange og meget tynde Haarborster, der sidde i to meget 

 smaa Knuder (T. VII, Fig. 34). Farven er ved den gjen. 

 nemskinnende Tarmkanal gronlig; Huden selv er farvelos. 



Cirratulus (?) abranchiatus, n. sp. 



Stat, 31. 



3 Exemplarer. 1 4*" m lang. 3""" bred. Kroppen aflang, 

 tilspidset i begge Ender, sammensat af smale Led med 

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

 afstumpet Kegle unden Tilhreng og Øine; bag dette et 

 bredt og 2 smale borstelose Segmenter, der sammen med 

 Hovedet danne en konisk Fremragning paa de bagenfor 

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

 Munden paa Undersiden af Hovedet, Hvert borsteforende 

 Segment bærer paa hver Side en langagtig Fremragning 

 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 Svrelg; Tarmen gaar hge gjennem Krop- 

 pen, fastheftet med tynde Dissepimenter. Blodkar kunde 

 ei opdages, heller ikke Segmental-Organer. 



Trods den fuldstændinge Mangel paa de for Oirratu- 

 liderne karakteristiske Branchier. synes dette Dyr dog ved 

 sin Bygning forresten at staa denne Slægt nærmest. 



Clymene Koreni, n. sp. 



Stat. 87. 



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

 bærende Segmenter, ingen nogne anteanale Segmenter. 

 Hovedet hvælvet. med en smal paa begge Sider indskaaret 



Cirratulus abyssorum, n. sp. 



Stat. 87. 



Three defective specimens, the posterior extremity 

 gone in each. The smallest specimen has no branchiæ; 

 in the largest of the two other examples, a few branchiæ 

 are still attached to the segments, as far as the 30th seg- 

 ment. The lobe of the head conical; no naked segments 

 behind it (PI. VII. tig. 33). The segments exceedingly 

 slender, bearing on either side 2 fascicles of comparatively 

 long and exceedingly delicate capilliform bristles, arranged in 

 two very small protuberances (PI. VII. fig. 34). Colour 

 greenish white, the intestinal canal shining through the 

 skin; the skin itself is colourless. 



Cirratulus (?) 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. fig. 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 ati elongate projection, fur- 

 nished with a small mammilliform 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 (PI. 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 structure nevertheless brings it nearest to the 

 Cirrutiilidæ. 



Clymene Koreni, n. sp. 



Stat. 87. 



One specimen, a trifle over 2"" in length and 1""" 

 in thickness. Furnished with 18 bristle-bearing segments; 

 no naked pre-anal segments. Head convex, with a narrow 



