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Canadian Translation of Fisheries and Aquatic Sciences No. 5039 ISSN 0704-3716 Canadian Translation of Fisheries and Aquatic Sciences No. 5039 Ainudrilus oceanicus, a new genus and species of the family Tubificidae (Oligochaeta) N.P. Finogenova Original title: Ainudrilus oceanicus - novyi rod i vid semeistva Tubificidae (Oligochaeta) In: Zool. Zh. 61: 1255-1258, 1982 Original language: Russian Available from: Canada Institute for Scientific and Technical Information National Research Council Ottawa, Ontario, Canada R1A 0S2 1983 10 typescript pages Secretary Secrétariat I. of State d'État MULTILINGUAL SERVICES DIVISION — DIVISION DES SERVICES MULTILINGUES TRANSLATION BUREAU BUREAU DES TRADUCTIONS LIBRARY IDENTIFICATION - FICHE SIGNALÉTIQUE TP-4- 5 Translated from - Traduction de Into - En Russian English Author - Auteur N. P. Finogenova Title in English or French - Titre anglais ou français Ainudrilus oceanicus, a new genus and species of the family Tubificidae (Oligochaeta) Title in foreign language (Transliterate foreign characters) Titre en langue étrangère (Transcrire en caractères romains) Ainudrilus oceanicus - novyi rod i vid semeistva Tubificidae (Oligochaeta) Reference in foreign language (Name of book or publication) in full, transliterate foreign characters. Référence en langue étrangère (Nom du livre ou publication), au complet, transcrire en caractères romains. Zoologicheskii zhurnal Reference in English or French - Référence en anglais ou français Zoological Journal Publisher - Editeur Page Numbers in original DATE OF PUBLICATION Numéros des pages dans Academy of Sciences DATE DE PUBLICATION l'original of the USSR Year Issue No. 1255 —1258 Volume Place of Publication Année Numéro Number of typed pages Lieu de publication Nombre de pages dactylographiées Moscow (USSR) 1982 61 8 Requesting Department Translation Bureau No. Ministère-Client DFO Notre dossier no 1253741 Branch or Division Translation (Initials) Direction ou Division SIPB Traducteur (Initiales) J. N. Person requesting Demandé par R. O. Brinkhurst UNEDITED TRANSLATION For information only Your Number Votre dossier no TRADUCTION NON REV1SEE Information seulement Date of Request Date de la demande 13 October 1983 DEC - 2 1983 CanadW. SEC 5-111 (Rev. 82/11) • Secretary Secrétariat UNEDITED TRANSLATION of State d'État For information only NON REVISEE MULTILINGUAL SERVICES DIVISION — DIVISION DES SERVICES MU/MR(161PN Information TRANSLATION BUREAU BUREAU DES TRADUCTIONS seulement Clients No.—No du client Department — Ministère Division/Branch — Division/Direction City — Ville DFO SIPB Ottawa Bureau No,-1\1 0 du bureau Language — Langue Translator (Initials) — Traducteur (Initiales) 1253741 Russian ii • N. DEC - 2 1983 Zoologicheskii Zhurnal (Zoological Journal), 1982, vol. 61: pp. 1255-1258. UDC 595.142.3 Ainudrilus gen. et sp. n. Ainudrilus oceanicus - novyi rod i vid semeistva 1255. Tubificidae (Oligochaeta) Ainudrilus oceanicus, a new genus and species of the family Tubificidae (Oligochaeta) N. P. Finogenova In samples from the littoral zone of seas in the Far East we found some oligochaete worms with a distinctive mor- phology, for which we have established a new genus and species, described below. Ainudrilus Finogenova, gen. n. Setae only bifurcate crotchets; modified penial setae present in ventral fascicles on segment XI. Within the body * The numbers in the right-hand margin indicate the corres- ponding pages in the original text. (Tr.). SEC 5 - 25 (Rev. 82/11) Canaclâ 2 cavity there are many large coelomocytes. Nephridia with post- septal of the enchytraeid type. Integumentary flexus present. Testes in segment X, ovaries in XI. Male gonoduct with a very short but distinct vas deferens, a tubular and spirally twisted atrium (with ciliated epithelium), which passes distally into a large penial chamber with thick muscular walls and a long efferent duct, terminating in an external pore. There is no penis. Prostate glands absent, though individual prostate cells are deeply embedded in the epithelium of the wall of the atrium along the whole length of the tubular section. Genital openings raired, on segment XI. The openings of the seminal rece‘ptacles in segment X beside dissepiment 9/10 are paired. Spermatozeugmata absent. Egg funnels large, oviducts short, well developed. Ainudrilus oceanicus Finogenova, sp. n. (Figures 1, 2) Material. Kuril Islands: Urup Island, Pacific coast, Cape Temnyi, 18 September 1969, section 103, sample 131 (N. I. Kashin) - holotype No. 1/45672 (series of anatomical sections), paratypes 2 - 3/45673-74 (including 1 specimen in alcohol and 1 series of anatomical sections); Paramushir Is- 129 land, Severnyi Kuril'sk, 5 September 1967, section 27, collec- ted on Fucus+Balanus (V. M. Sukhanov) - 25 sexually mature specimens; Paramushir Island, Utesnyi settlement, section 22, collected on Fucus+Monostroma - 27 sexually mature specimens. Beringa Island, Cape Zabiyaka, 13 July 1964 (N. A. Kolotovkina) - 6 sexually mature specimens. 4. 3 o Z' `• • e.A5 12 . Pac. I. Ainudrilus oceunicus - gen. n., sp..n.: a— nealla.ibabze =maim, 6 — necIlmaidi XV cerateaTa, 8--cpe3- B obeacta nermaabaoll aamephr, —cpea. a o6oacra cemanpoanaa K rtigmalort qacTir aTpita; J — crunniaa aonactb RecP- , pa.zan, -2 — B BOJIHO npoToK nectepaamr, 3— 3HTa.lbHbi oTrtp,, arpHyf,-4 — uput.idiatiermie x.lerfui—, 5— sfecro anaaelnia TP3r6qaTorf qacTa aTpaa B newt- aabapo xamepy, 6 — nennanbnasi aamepa, 7— MWWIbZ neana..ibaoà aamepu„. 8— BEJ130,1H0 ilpOTOK aTpani 9 — ceoft angunx Tpy6qaTori qacra œrpaa, 10— cemeaaan aopoaan,....1/—cemanpnao,a, 12 — ,mccennmeirr Figure 1. Ainudrilus oceanicus gen. n., sp. n.: a - penial setae, b - nephridium of segment XV, v - section in region of penial chamber, g - section in region of vas deferens and tubular part of atrium; 1 - dorsal lobe of nephridium, 2 - efferent duct of nephridium; 3 — entai section of atrium, 4 — prostate cells, 5 — location of entry of tubular part of atrium into penial chamber, 6 — penial chamber, 7 — muscles muscle of penial chamber, e - effërent duct of atrium, 9 — layer of tubular part of atrium, 10 - sperm funnel, 11 - vas deferens, 12 - dissepiment. • édfuus_oceanicus_gen_m_sp_rt.:_a— my•cKoil rolioaywr (oTriperta- poaaH), — cemenpuemium; 1— cemettuaH soporiKa, 2— anecernimetr, 3 — Tpy6traTaft tiacrb arpini, 4 — rientubitag Kamepa, 5— Bbil301H011 npeyroh: atouR, 6— autioamori-nporoK cesteapHennuca, 7— amny.aa cemenonemaaxa Figure 2. Ainudrilus oceanicus gen. n., sp. n.: a - male gonoduct (dissected out), b - seminal receptacle; 1 - sperm funnel, 2 - dissepiaent, 3 - tubular part of atrium, - penial chamber, 5 efferent duct of atrium, 6 - effe- rent duct of seminal receptacle, 7 - ampulla eseminal re- ceptacle. le. • 5 Description. Setae with distal tooth shorter and thinner than lower tooth. In front of clitellum in fasci- cles of 2-4 setae, behind clitellum in fascicles of 1-2 setae. On segment XI in the ventral fascicles there are 7 bidentate penial setae,the distal tooth of which is smaller than in the limmalsetae. The fascicle of the penial setae is situated transversely to the body, the upper ends of the setae are con- vergent (Figure 1, a). Nodulus on normal setae at a distance of 1/3 of the way from the distal end, weakly expressed; on penial setae at a distance of 1/11 of the way from distal end. Length of normal setae 125-150 g, of penial setae 235 g. 1257 Openings of seminal receptacles in line with the ventral setae on segment X beside dissepiment 9/10. Male genital openings in line with the ventral setae on segment XI. Clitellum on last third of segment X to first third of segment XIII. Small pharyngeal glands present in segment III. Oeso- phageal glands present in segments IV-V. Cloragogen tissue commences from segment VI. Within the body cavity there are many large (7.5-12.5 g in diameter) coelomocytes of two kinds: strongly granular (few in number) and more homogeneous. Neph- ridia from segment VII, with a dorsal lobe and a narrow effe- rent duct (Figure 1, b). Body wall with a thick layer of muscles (20 - 110 g in thickness). Dissepiments strongly deve- loped. In the pre-clitellar segments they are up to 15 g in thickness. Sperm funnels large, festooned. Vasa deferentia very short (60 g) and wide (60 g). Atrium tubular in its proximal part, with a ciliated epithelium on the inner side, spirally twisted, with loops that aré closely adjacent to one another 0, 6 (Figure 1, g; 2, a). Prostate tissue, in the form of separate Prostate cells,developed along the whole length of the tubular section of the atrium along the outer margin of its rings. The prostate cells protrude past the margin of the wall of the at- 125e rium, creating an uneven surface of the loops. In sections they have a coarsely-granular structure. Penial chamber of an egg-shaped form, with muscular walls and Amml a narrow efferent duct, terminating in an exter- nal pore. The entai tubular section of the atrium runs into the penial chamber subapically (Figure 1, v). Dimensions of atrium: width of tubular section of atrium 45-70 g, width of lumen of tubular section of atrium 12.5-25 g, width of penial chamber 135 g, length 160 g, width of efferent duct 50 g, length of efferent duct 175 g. Seminal receptacles with very short efferent ducts, their ampullae of a characteristic mushroom- shaped form (Figure 2, b). Orenings of seminal receptacles close to dissepiment 9/10. The seminal receptacles were full of sperm. Dimensions of seminal receptacles diameter of am- pulla in its widest part 325-345 g, height of ampulla 160-175 g, width of efferent duct 90-95 g, its length 60-85 g. Egg funnels large (100 g in diameter), attached on dissepiment 11/12. Width of oviduct 25 g. There are 2 seminal vesicles: anterior (extending to segment VIII) and posterior (to segment XV). Body length of sexually mature specimens 8.5-20 mm, thickness in region of clitellum 500-600 g. Number of seg- ments 50-70. e . ' 7 Remarks • A very distinctive feature of this genus is the arrangement of the prostate cells, not on the surface of the atrium but rather embedded deeply in its walls.
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