176 Leuckart: ßericht üb. d. Leistungen nn d. Naturgeschichte 



cowjfl Gr., Terebella ornnla n. sp , Torquea (n. gen.) eximia n. sp., 

 Cirralulus fragilis n. sp. , Lumbriconereis splendida Bl. , Eunice san- 

 guinea Mont., Glycera americana n. sp. , Siphonostomum affine n. sp., 

 Lepidonote armadillo (Ross ) Leidy (= L. punctata Oerst.) , Sigalion 

 Mathildae Aud. et Edw., Ophelia simplex n. sp. 



Die beiden neuen Geschlechter tragen folgende Charaktere : 

 \ Nar.ag'ansetu Leidy. Body cylindrical, narrowediposteri- 

 orly; no lateral pionae; Segments numerous; those anteriorly furnished 

 with a few , simple, cylindrical, lateral tenlaculae; anterior segments 

 with four rowsof simplesetae infascicles; succeeding . few segments 

 With two rows of simple setae and two rows of cochleariform po- 

 dal spines; posterior segments with four rows of cochleariform spi- 

 nes. Upper lip distinct, conical, eyes none. . ; wk 



Torquea Leidy. Body cylindrical, narrowed at the^^itremi. 

 ties. Tentaculae. numerous, attached laterally to the head, capable of 

 very great extension and contraction by the passage to and fro of 

 blood corpuscles frora..the cavity qf body,; , Eyes none. Set^e two 

 rows, three to twelve in a fasciculus, extremities lanceolate. Podal 

 hookf.iin. tWQüfOWS, ,ßhpyt,.from twelve to forty in each transverse 

 series supportseduat tjiöj^dger qf a.ls^ii^ar pi;p,pa£|s stiffened with^^pe, 

 simple setae. : , . , -. jo •- ; ;■ ,y ■;.;•;; , < ;,- ^ j,' , • ;;,, ;;,; ,i . : ; 



Von besonderem Wertbe «ind die genauen und delail- 

 lirlen , mit schönen Abbildungen erläuterten Beschreibungen, 

 die Sars über eine Anzahl meist neuer (theilweise auch 

 schön fruijer^ 'J^. T3.'XX.' S. 324, beächri(iberr6n:J Ahnelitli^h jiii 

 der Fauna littor.Nöyeglae II publicir,i hat^ über: Spi octiae^ 

 topterus^ O^tgefl-D MP^I^^^J^' sp^^^R^c^-T'?^:Tab^i[^%.^Ö3— ^1, 

 Notomastus, jateric^us Sars p. .9—13. Tab. II. fig, 8—17 , Cly- 

 mene Mülleri n. sj)., (?/. quadrilobata n. si^. , Cl. lumbricalis 

 (Fabr.) Sars p. 13— 18. PI. I. Fig. 1—7. PI. II. Fig. 18— 22, 

 Sabeftides crista'ta Sars^. 194^21^: Pl. IJ? Figl' t— 7J|'S:' oclo- 

 cirrata Sars ( 1835) , S. boreßUs ni , sp^^ ' 0.,^ octociirratä Sars 

 Iß^l), S. sea?cerrafa n. sp. 1',-. 



j.\ : Das neue, höchst, interessante Gen. Spir ochae ta, das den son- 

 derbaren Bau -von Chaetopterus auf das Unverkennbarste den Organisa- 

 tionsverhältnissen der Aricinen annähert, trägt folgende Charaktere*. 

 Corpus filiforme , antice truncatum^ ibique iufra et ad latera labium 

 Formans carnosum, spathulatum seu subinfundibuliforme , in cuius 

 fundo OS. Löl)us capitalis supra os parvus," rotundatus, oculis nul- 

 lis. Cirri tentaculares duo longissimi et sulcb longitudiniäli ornati. 

 Segmenta hovem antica corporis depressa, bfcvia, mamillis pedalibus 

 conicis seu pyramidalibus solüminödö dorsalibüs (ventraliBüs carenti- 

 bus), sctis instructis capillaribus apice subhastato.acuto non in fasci- 



