SOME FURTHER RECORDS OF PELAGIC POLYCHAETA FROM THE NORTHEAST PACIFIC NORTH OF LATITUDE 40° N. AND EAST OF LONGITUDE 175° W., TOGETHER WITH RECORDS OF SIPHONOPHORA, MOLLUSCA, AND TUNICATA FROM THE SAME REGION
- 1 August 1960
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Zoology
- Vol. 38 (4), 787-799
- https://doi.org/10.1139/z60-083
Abstract
Seventeen species of pelagic Polychaeta from the northeastern Pacific are recorded. Of these, five (Sphaerosyllis pirifera Claparède, Dorvillea kefersteini McIntosh, Spiophanes cirrata Sars, Magelona sp., and Flabelligera affinis Sars) are species which, whilst not exclusively pelagic, are known to swim at some stage, particularly as larvae. One record (Pedinosoma curtum Reibisch) is new to the Pacific Ocean, two (Pontodora pelagica Greef and Callisona nasuta Greef) are new to the northeastern Pacific region, and four (Pelagobia longicirrata Greef, Lopadorhynchus uncinatus Fauvel, Sagitella kowalewskii Wagner, and Callizona angelini (Kinberg)) are records of northerly extensions of distribution. The first observation of a larval Cossura (probably of C. longocirrata Webster and Benedict) is recorded. Poeobius meseres Heath is recorded from a number of stations and the classification of Poeobiidae is discussed.Eight species of Siphonophora are listed, all of which constitute new records for the region covered by the present collections. Six species of Mollusca, comprising five Pteropoda and one Heteropoda, are recorded, none of which have been identified previously in northeastern Pacific plankton. Three of the genera of Pteropoda (Anopsia, Thliptodon, and Cliopsis) are characteristic of warmer seas, the other two, and the heteropod, are widely distributed. Of the two species of Tunicata listed one is new to the northeastern Pacific.Keywords
This publication has 7 references indexed in Scilit:
- The relationship of the distribution of the planktonic worm, Poeobius meseres Heath, to the water masses of the North PacificDeep Sea Research (1953), 1960
- Notes on Polychaeta from the East Coast of Vancouver Island and from Adjacent Waters, with a Description of a New Species of AricideaJournal of the Fisheries Research Board of Canada, 1956
- Marine polychaete worms from Point Barrow, Alaska, with additional records from the North Atlantic and North PacificProceedings of the United States National Museum, 1954
- Histological and histochemical observations upon an aberrant annelid, Poeobius meseres HeathJournal of Morphology, 1947
- Echiuroid worms of the North Pacific OceanProceedings of the United States National Museum, 1946
- A connecting link between the Annelida and the Echiuroidea (Gephyrea armata)Journal of Morphology, 1930
- Medusae and siphonophorae collected by the U. S. Fisheries steamer Albatross in the northwestern Pacific, 1906Proceedings of the United States National Museum, 1913