World Polychaeta Database

Polychaeta source details

Name

Izuka, A. (1903). Observations on the Japanese Palolo, Ceratocephale osawai, n. sp. Journal of the College of Science, Imperial University of Tokyo, Japan. 17(11): 1-37, plates I-II.

SourceID

50513

Authors

Izuka, A.

Year

1903

Title

Observations on the Japanese Palolo, <i>Ceratocephale osawai</i>, n. sp

Journal

Journal of the College of Science, Imperial University of Tokyo, Japan

Suffix

17(11): 1-37, plates I-II

Type

Publication

Link

https://www.biodiversitylibrary.org/page/7253893

Note

World Polychaeta Database (WPolyDb)
Publication date: 1 July 1903

Abstract

[None. Work starts as:]
The investigation, the results of which are embodied in the following pages, was begun in the summer of 1896 and carried on at intervals during the three following years, partly in the Laboratory of the Zoological Institute and partly in a room hired for the purpose of facilitating the collection of fresh materials.
The subject was taken up at the suggestion of Professor Ijima, who has also kindly undertaken the work of revising the manuscript. To him and also to Professor Mitsukuri I beg to express my sincere thanks for the help and advice which they have frequently extended to me in connection with my work. Further I am under deep obligation to Professor K. Osawa of the medical college, who, being himself much interested in observing the breeding and swarming habits of the worm described in this paper, has favored me with valuable information and suggestions.

Geographical term

Japan

Bibliographical terms

Reproduction
Systematics, Taxonomy

Taxonomic terms

Annelida
Polychaeta

Export

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Sessions

Date

action

2013-01-12 18:30:12Z

created

db_admin

2016-05-20 13:46:08Z

changed

Gil, João

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Ceratocephale osawai Izuka, 1903 accepted as Tylorrhynchus osawai (Izuka, 1903) (original description)

Syntype UMUTZ Ann-Pc-130, geounit Tokyo, identified as Ceratocephale osawai Izuka, 1903
Syntype UMUTZ Ann-Pc-133, geounit Tokyo, identified as Ceratocephale osawai Izuka, 1903
Syntype UMUTZ Ann-Pc-51, geounit Boso Peninsula, identified as Ceratocephale osawai Izuka, 1903

Japanese bachi [epitokous stage] [from synonym] for Ceratocephale osawai Izuka, 1903
Japanese itome [atokous stage] [from synonym] for Ceratocephale osawai Izuka, 1903

Ceratocephale osawai Izuka, 1903

Depth range

for Ceratocephale osawai Izuka, 1903

Littoral, between tide marks. [details]

Diet

for Ceratocephale osawai Izuka, 1903

''They are [...] very active and voracious, feeding on various aquatic animals and plants.'' (Izuka, 1903: 5). [details]

Distribution

for Ceratocephale osawai Izuka, 1903

NW Pacific Ocean: Honshu Island, Japan. Along the Sumida River, Tokyo, for a distance along six miles from its ... [details]

Etymology

for Ceratocephale osawai Izuka, 1903

The specific epithet osawai is given ''in honour of Professor K. Osawa, whose interest in the study of the worm I ... [details]

Habitat

for Ceratocephale osawai Izuka, 1903

Atokous specimens live in the littoral, between tide marks, burrowing in the mud or sand to a depth of a foot or ... [details]

Human impact

for Ceratocephale osawai Izuka, 1903

''Ceratocephale osawai is one of the most common littoral Annelids in Tokyo and vicinity, where it is extensively ... [details]

Reproduction

for Ceratocephale osawai Izuka, 1903

Swarms during the nights closely following the new and full moon in October and November (Sumida River, Tokyo, ... [details]

Type locality

for Ceratocephale osawai Izuka, 1903

Honshu Island, Japan, NW Pacific Ocean. The species was described with base on material collected mainly in Tokyo ... [details]

Type material

for Ceratocephale osawai Izuka, 1903

Specimens from Izuka's collection deposited at the University Museum of the University of Tokyo with the numbers ... [details]