Two New Species of the Genus Anonyx (Amphipoda: Gammaridea: Lysianassoidea) from Onagawa Bay, Northeastern Japan
- A. Takekawa, S. Ishimaru
- Biology
- 1 April 2001
Two new species of lysianassoid amphipods are described from shallow waters of Onagawa Bay, northeastern Japan, belonging to the genus Anonyx, which has been divided into five informal groups by the morphological characters of the uropod 2.
A New Species of the Genus Scopelocheirus (Crustacea: Amphipoda: Gammaridea) from Onagawa Bay, Northeastern Japan
- A. Takekawa, S. Ishimaru
- Biology
- 1 July 2000
A new species of scopelocheirid amphipod was found during an ecological study of the marine scavenging amphipods in Onagawa Bay, Northeastern Japan and is closely similar to S. hopei and S. Aroui, but clearly distinguished from them by lateral cephalic lobe, maxilla 2, pereopod 6, epimeron 2 and uropods 1-3.
Diel activity and vertical distribution of Lysianassoid amphipods dominant in Onagawa Bay, north-eastern Japan
- A. Takekawa, K. Sasaki, M. Omori
- Environmental Science
- 1 December 2004
Baited traps were used over 24 h to reveal the diel activity and vertical distribution of three dominant lysianassoid amphipods in Onagawa Bay, north-eastern Japan, suggesting that these scavengers rely on the food supply from bottom deposits.
A new species of the genus scopelocheirus (crustacea: amphipoda: gammaridea) from onagawa bay, northeastern Japan.
- A. Takekawa, S. Ishimaru
- BiologyZoological Science
- 2000
A new species of scopelocheirid amphipod was found during an ecological study of the marine scavenging amphipods in Onagawa Bay, Northeastern Japan, and some taxonomic commentary on the generic identity of the genus Scopel Rocheirus and a related genus Aroui is described.