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Archiv Für Naturgeschichte ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Archiv für Naturgeschichte Jahr/Year: 1902 Band/Volume: 68-2_3 Autor(en)/Author(s): Krumbach Thilo Artikel/Article: Hydroidea und Acalephae (mit Ausschluss der Siphonophora) für 1904. 1-68 © Biodiversity Heritage Library, http://www.biodiversitylibrary.org/; www.zobodat.at Hydroidea und Acalepiiae (mit Ausschluss der Siphonophora) für 1904. Von Thilo Krumbach (Breslau). Inhaltsverzeichniss siehe am Schlüsse des Berichtes. Vorbemerkungen. Der Bericht erscheint von jetzt ab in der Anordnung, die dem Grundplan dieses Archivs entspricht. Wie in den früheren Jahren, so ist auch jetzt wieder darauf gesehen worden, dass durch Nachträge möglichste Vollständigkeit erzielt werde. Zeichenerklärung. A bedeutet: ,, Siehe unter Artenkunde (Neue Arten)", B = Biblio- graphisches, E = Entwicklungsmechanik (Physiologie des Wachs- thums), F = Faunistik, K = Klassifikation, L = Literaturver- zeichniss, = Oekologie, Ethologie, P = Physiologie, S = Sinnes- physiologie, Psychologische Physiologie, T = Technisches, V = Ver- gleichende Anatomie, Z = Zootomie, Allgemeine Anatomie. Die mit * versehenen Titel sind dem Referenten nicht zugänglich gewesen. Verzeichniss der Publikationen mit Inhaltsangaben. Abbot, James Francis. Preliminary Notes on Coeloplana. — Anno- tationes zoolog. japon. Vol. 4 (Part 4) Tokyo 1902. Material von Misaki Marine Biological Station. 2 Species. Littoral in its habits and apparently wholly unfitted for life on the open sea. It possesses no vibratile plates or swimming cilia and cannot swim,tho in captivity it floats frequently on the surface of the water. It is found principally on encrusting algae. Very sluggish, the ventral surface is heavely ciliated, the dorsal not at all . Two long chalky white ten- tacles; contractile, und an den secondary branches battaries of nettle cells. A network anastomosing digestive canals, das den ganzen Körper durchzieht. Mund direkt unter dem Sinnesorgan. It opens into a Aa-b. f. Natiirgejch. 63. Jahrg. 1902. Bd. U. H.3. (XVI. d.) 1 © Biodiversity Heritage Library, http://www.biodiversitylibrary.org/; www.zobodat.at 2 XVI. Coeleuterata. Hydioidea und Acalephae rather thin - walled pharynx, which apparently is roughly four lobed. Otolith very small. Two semicircular bands of yellow cells probably glandulär, Surround the otolith at the base. K. Abric, Paul (1). Sur le fonctionnement des nematocystes des Coelenteres. — C. R. Soc. Biol. Vol. 56 p. 1008—1010. Die Ausschnellung des Nesselfadens der Actinien ist weder durch die Wirkung des Meerwassers auf eine Masse im Innern der Nessel- kapsel, die dadurch aufgebläht würde, noch durch Druck oder Con- traction der Nesselzelle oder besonderer Fäden auf der Kapsel bedingt. Es handelt sich um eine chemische Wirkung: die Nesselzelle produzirt bei der Erregung ein Sekret, das die Membran der Kapsel entweder angreift oder osmotisch durchdringt und dann die Explosion her- vorruft. [Neapl. Ber.] — (2). Sur les nematoblastes et les nematocystes des Eolidiens. — C. R. Soc. Biol. Vol. 57 (1904) p. 7—9. Siehe zuvor Grosvenor. ,,Eine Facelina coronata enthielt 4 Typen von Nematocysten, oft in einem einzigen Nematoblasten zusammen; alle anderen Exemplare besassen nur den kleinsten der 4 Typen. In Wimereux fand sich indessen kein Coelenterat, dessen Nematocysten mit diesem Typus genau übereinstimmten. Nous n'avons aucune idee du role des nematocystes chez les Nudibranches". [Neapl. Ber. Moll. p. 36]. — (3). Les cellules agglutinantes des Eolidiens. — C. R. Acad. Sc. Paris Tome 139 (1904) p. 611—613. Uebereinstimmung und Vervollständigung von Crosvenor 1903. La plupart des especes d'Actinies possedent plusieurs especes de nemato- cystes, et en plus des spirocystes (cnidae cochleatae , Gosse 1856) filaments spirales pleins et non devaginables, contenus ä l'interieur d'une capsule analogue ä celle du nematocyste. Der Bau ist noch nicht aufgeklärt. Les nematocystes passes dans les Eolidiens s'accolent d'abord sur les faces des ,, nematoblastes", cellules agglutinantes . ., s'invaginent dans ces cellules et changent alors de reactions . A cet etat ils sont fonctionnels. Or . ils ne l'etaient pas ä la fin du printemps, quoique etant charges. Ils subissent donc, dans la cellule agglutinante, des variations dans le temps. [Anonymus]. Classification. — Natural Canad. Vol. 31, p. 210—218. Coeleuterata p. 216—218, 4 Fig. Aunandalc, .\elson (Calcutta). Siehe .ishworth & Annandale. Arnesen, Eniily. Spongier fra den norske kyst. I. Calcarea. Systematisk katalog med bemerkninger og bestemmelsestabel. Med 1 planche. 46 Seiten. — Bergens Museums Aarbog 1900. No. 5. Bergen 1901. p. 30—31. Ascandra armata. Paa sertulariastokke. — ,,Anm. 1): I lighed med, hvadfroken Bonnevie hargj ort for den norske Nordhavs Exp.s hydroiders ved kommende, har ogsaa jeg opstillet en dybdeoversigt for svampenes ved kommende efter dr. Hjorts 3 dybderegioner. l. De periodiske vekslingers region. — 2. De konstante Atlanterhavs- © Biodiversity Heritage Library, http://www.biodiversitylibrary.org/; www.zobodat.at (mit Ausschluss der Siphonophora) für 1904. 3 forholds region. — 3. Ishavsvandets region. — (Se Naturen 1897), hvortil jeg ligeledes har feiet en littoralzone, som jeg har sat til 40 m". AshwortJi, J. H. Coelentereata [nur Anthozoa incl. Hydrocorallia]. — Zoologischer Jahresbericht für 1904. Herausgegeben von der Zoo- logischen Station zu Neapel. Berlin, Friedländer & Sohn, 1905. Ashworth, J. H. and .Annandale, Nelson. Observations on some Aged Specimens of Sagartia troglodytes, and on the Duration of life in Coelenterates. — Proc. Roy. Soc. Edinburgh, Session 1903— 1904, Vol. 25 (Part 4) 14 p. Edinburgh 1904. 16 Sagartien . have lived in captivity for about fifty years, u. a. Beispiele, p. 9— 10: Hydrozoa: 1. Hincks 1868 p. XLIII. 2. One of US has observed off the coast of the Malay Peninsula hydroid colonies (Obelia, sp.) several inches in lenghth attached to the cast skins of sea snakes (Enhydrina valakadien and others). These therefore had grown upon the skins before the latter had time to disintegrate, for such colonies were not present on any of the hundreds of living sea snakes examined. 3. Hincks 1868 p. XLIV. 4. Weismann 1883 p. 102. 5. All- man 1871 p. 403. 6. Van Beneden 1867 p. 101. — p. 3: Fussnote: Nesselkapseln der Hydroiden können unentladen durch einen Theil des Verdauungskanals von Aeolis gehen, entladen sich aber im Seewasser. Grosvenor: Proc. R. S. L. vol. 72 (1903) p. 478—479. Avebury, P. €. Lord. Essays and Adresses, 1900—1903. Pp. 296. London : Macmillan and Co., Ltd., 1903. Price 7 s. 6 d. net. Enthält u. a. eine kurze Studie über Leben und Werk Th. H. Huxleys. Baucroft, F. W.j Note on the galvanotropic reactions of the medusa Polyorchis penicillata A. Agassiz. — Journal of Experimental Zoology Vol. 1 (1904) p. 289—292, 4 fig. Auch in Univ. Cahfornia Publ. Phys. Vol. 2 (1904) p. 43—46, 4 fig. B. hat aus der Polyorchis meridionale Streifen herausgeschnitten, vom Schirmrand durch das Zentrum nebst Manubrium und wieder herunter zur anderen Seite, und hat dann durch das Seewasser einen Strom mit nicht polarisirbaren Elektroden geleitet. Von 25'^' an ist die Reaktion wahrnehmbar. Geht der Strom quer hindurch (trans- versal), so drehen sich Tentakel und Manubrium nach der Kathode; bei ITmkehr des Stromes drehen sich auch diese Organe wieder herum. Geht der Strom in der Richtung des Streifens selbst (meridional), so drehen sich die Tentakel am Anodenende nach der Kathode ; die am Kathodenende drängen sich pinselförmig zusammen. Das Manubrium reagirt in beiden Fällen wie die Tentakel, nur schwächer, und ermattet leichter. Auch isolirte Tentakel reagiren . Die Reaktion des See- wassers ist ohne Einfluss, so lange die Tentakel nicht zu sehr geschädigt sind. [Nach Maas (4) p. 11.] Benhain, Blaxland W. The Coelomic Fluid in Acanthodrihds. — Quart. Journ. Micr. Soc. Vol. 44 (N S) p. 565—590, t. 41. London 1901. Verwirft p. 586 den Terminus ,,nematocysts", den Eisen für die thread-containing cells der Oligochaeten verwendet, a term which I think is not altogether suitable, in view of the familiär ,,nematocyst" of the Cnidaria. 1* :: © Biodiversity Heritage Library, http://www.biodiversitylibrary.org/; www.zobodat.at 4 XVI. Coelenterata. Hydroidea und Acalephae Bigelow, Maurice, .4. Siehe College-Entrance Option in Zoology. Bigelow, Henry B. Medusae from the Maldive Islands. — Bull. Mus. Zool. Harvard College (1904) Vol. 39 No. 9 p. 245—269, 9 t. [Siehe Maas (4) bei Browne.] „Amra", Dec.—Jan. in den Maldiven. Die Medusen in den Lagunen und in der offenen See. 19Hydromedu8en (II Lepto-, 8 Trachylinae) aus 16 Genera. 2 Gen. Scyphomedusen. Siphono- und Ctenophoren. Die Verbreitung der 15 neueren Species. Considered from the Standpoint of morphology, many of the new species are of interest, since they differ from their nearest allies in important structural characters . The Maldive Islands form in every respeet a typical tropical coral reef region, and a comparison of their Medusa fauna whith that of similiar regions in the Pacific and Atlantic is therefore of interest: Fiji, Tortugas, Mediterranean. General Con- clusions. List of Species. Description of the Species. Billard, Armand (I). Contribution ä l'etude des Hydroides (multi- pUcation, regeneration, greffes, variations). — Theses, Paris, 1904 et Ann. Sei. nat. Zool. (8) Vol. 20 (1904) p. 1—251, 6 1, 89 fig. Plan der Arbeit. Methodes generales (Appareil employe pour la conservation des
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