26 OUGOCHAETA. 



If this species would not correspond to Tubifex Bonnetii, 

 Clap., which, with regard to the succinct description given by 

 this author, I am not able to d.ecide, indeed the name »papil- 

 losus» ought to have priority; but as I cannot confidently iden- 

 tify this species with an other marine one, described by Cla- 

 parede 186r3 (o. cit.) by name of Tubif. papillosus, I have con- 

 ditionally subjoined the name s^ verrucosus*. 



Tubifex papillosus, Clap., probably is identical to Tubifex 

 Benedii, dTTdek., except that the warts in the former stand 

 close to each other, in the later thinly (Vide: the figures given 

 by dT^dekem 1855 and the description given by Claparede). 



B. Setae uncinatae 1, furcatae ; rami vasovum digitati 1. pianati. 



Lliinbriculiis, d'Udek. [Lum])ricillus, Uerstedj Fasciculi so-tarum setts 

 fureatis, abhrpciafis ferine rectis; rcmii vasonmn sacculis coecis contrae- 

 Ulibiis ienninuti. corda vera nulla. 



L. Yarieg'atus, d'Udek. et Ratzel. Lobits ceplmUeus secjmento buccali 

 conthmus non prolonfjatiis, Os Inferimi., snbierminale. Tractiis intesti- 

 nalis oesophago constat (segg. ijij antioau intestinn appeiidir-ihus pinnato 

 (segg ■ xlvj) pjarteqve indistincte pminata ij-xxrlj): am/s fenninftlls. Vas 

 clorsale ramulis dictincfe fri — 1. quadrijiartitis : coeca la.teralia in seg- 

 mentis XV — ultimo, m/iniine cuin rasr rcutrali anastomotica usqiie ad 

 quina dena, ex quoque latere: praeterea /// quoquc sec/meiito ansa reperitur 

 vasis dorsalis cum, rentrati anaxtimiotim : coecn Interalia in strct,tum, in- 

 testini glaud-uJosum, penetrant. Oeuti nnlli. Cutis pellucida., except is 

 tantum seifinpnti^ aliquot anteriorihus (rj — x) <[uurum strata externa pig- 

 mento viridi impellucida reddita s/tut. Ciugulvm nullum. Segmenta 

 xe — Gxx, quorum latiiiido longitudinem, supterat. Seine interdmn indi- 

 stincte furcatae-subtdatae. Long. circ. 80 m. m. 



Sgn. Lumbricus variegatus, (». F. Miiller I. 11. 26; Linue S. Nat 



XIII, 3084. 

 Lumbricus rivalis? Fabvicius F. <TroeiiI. 2(8. 

 Lumljiiculus variegatus, rVrube in Wiegmans Ardiiv 1844 y. 210; 



it. Grube 101 et 144: dlJdekem 1859 p 10; Claparede 1862; 



Ratzel 1868. 

 Lumbrieulus limosus. Leidy sec. d'Udekeai 1859 p. 10. 



Hahitat in aquis dulcibus, ubique baud frequens. — Abo, 

 Helsingfors, Inga, Mantsala. 



Xota. Tubificiuorum in familiam, generi autem incerto 

 refero Enchi/fmeun/ Jul if or mem, Kessler p. 105: Corpus »regu- 

 lariter cylindricum, segmentis constat circ iter 1, aegre conspi- 

 cuis; setae apicera versus paulluhmi compressae, per paria dis- 

 positae, in seriebus jv longitudinalibus. Aperturae genitales in 

 XIV segraento. Long. 10 — 12 m. m., latit. 0,6 — 0,7 m. m.» — 



