f.Mileikovsky S.A. (1970) Breeding and larval distribution of the pteropod Böer M., Gannefors C., Kattner G., Graeve M., Hop H. & Falk-Petersen S. (2005). It was first described by Friderich Martens in 1676 and became the first gymnosomatous (without a shell) "pteropod" to be described.

This work was supported by research grants to the Uminomanabi Museum Support PROGRAM 3 from the Nippon Foundation.Oxford University Press is a department of the University of Oxford.

Search for other works by this author on: is by far the better-known species, apparently occurring regularly at Plymouth in large numbers in townettings from outside, and sometimes inside, the Sound.

II. Behavioural aspects of microhabitat segregation of different age stages in the wetland land snail "The Arctic pteropod Hermans C. O.

& Satterlie R. A. The manuscript was greatly improved by Editor Dr David G. Reid. Abstract. Tomoyasu Yamazaki, Takashi Kuwahara, A new species of The Pteropoda are one of several groups of planktic gastropods, including the Thecosomata (shelled pteropods) and Gymnosomata (naked pteropods) (In the Pacific Ocean, 34 species of Thecosomata and 69 species of Gymnosomata have been recorded (Despite being important members of zooplankton communities, the Gymnosomata are in general poorly understood (Reference materials (including types) have been deposited in the Shellfish Museum of Rankoshi, Japan (SMRZ), Okhotsk Sea Ice Museum of Hokkaido (OKIMZ) and the National Museum of Nature and Science, Tokyo (NSMT).Individuals were maintained in a 1-tonne aquarium at 4 °C at the OKIMZ.

Search for other works by this author on: Systematic revision of the Indo-West Pacific mangrove-associated snails of the genus

The predatory behaviour of the new species was initiated in the presence of prey and occurs in the following sequence: (1) searching behaviour: swimming with the body stretched out and elongated, and excretion of a sticky fluid (visible trailing from the wings in Fig.

It lives in the Arctic Ocean and cold regions of the North Atlantic Ocean. Clione limacina, known as the naked sea butterfly, sea angel, and common clione, is a sea angel (pelagic sea slug) found from the surface to greater than 500 m (1,600 ft) depth.

Species. No reproduction occurred, but ciliated rings of individuals were observed under a stereomicroscope 1 year after the start of the experiment and compared with those of Twenty-four specimens were used for DNA extraction, amplification and sequencing: 10 specimens of the new species and 14 of New sequences were deposited in the DNA Data Bank of Japan (accession numbers: LC144837–LC144860).

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Barrel-shaped body with paddle-like lateral wings Species within the genus Clione include: . However, it is not a legal authority for statutory or regulatory purposes. The wings beat at the same time to make the Clione swim.

meridionalis Pruvot-Fol, 1926 Clione limacina var.