No.1
The Marquess Hachisuka, Ph.D. 15 Feb 1941
Description of a new species of bird from the Philippine Islands.
Bulletin of the Biogeographical Society of Japan, 11: 1-4.
No.2
The Marquess Hachisuka, Ph.D. 15 Mar 1941
Description of a new genus and species of sunbird from the Philippine Islands.
Bulletin of the Biogeographical Society of Japan, 11: 5-8.
No.3
The Marquess Hachisuka, Ph.D. 20 Mar 1941
Note on Hainan mammals.
Bulletin of the Biogeographical Society of Japan, 11: 9-14.
No.4
鈴木 正將 20 Apr 1941
満州及び北支那の盲蛛類（I）.
Bulletin of the Biogeographical Society of Japan, 11: 15-22.
No.5
Hatai, Kotora 25 Apr 1941
On a new fossil brachiopod from Mndoro Island.
Bulletin of the Biogeographical Society of Japan, 11: 23-25.
No.6
Hatai, Kotora & Yôzi Kitagawa 25 Apr 1941
On two species of fossil Lingula from the pliocene of Monô-Gun, Miyagi-Ken, Japan.
Bulletin of the Biogeographical Society of Japan, 11: 27-30.
No.7
Hatai, Kotora & Sinzi Yosida 20 May 1941
On the occurrence of Dosinia tatunokutiensis Nomura from Hokkaidô.
Bulletin of the Biogeographical Society of Japan, 11: 31-35.
No.8
Kuronuma, Katsuzo 30 May 1941
Notes on rare fishes taken off the Pacific Coast of Japan.
Bulletin of the Biogeographical Society of Japan, 11: 37-67, pls.1-2
No.9
Fukui, Tamao & Toji Ogata 31 May 1941
A new species of trematode from a Manchurian bat.
Bulletin of the Biogeographical Society of Japan, 11: 69-76.
No.10
Ogata, Toji 31 May 1941
Contribution à la connaissance de la faune helminthologique coréenne. II. Deux espèces nouvelles
de trématodes d'une chauve-souris Eptesicus serotinus parvus.
Bulletin of the Biogeographical Society of Japan, 11: 77-96.
No.11
Nakamura, Morizumi 10 Jun 1941
Notes on three species of Japanese bitterings spawn in autumn.
Bulletin of the Biogeographical Society of Japan, 11: 97-100.
No.12
Yabe, Hisakatsu & Motoki Eguchi 15 Jun 1941
Corals of Toyama Bay.
Bulletin of the Biogeographical Society of Japan, 11: 101-104.
No.13
Hatai, Kotora 20 Jun 1941
Additional fossils from certain miocene formations.
Bulletin of the Biogeographical Society of Japan, 11: 105-112, pl.3.
No.14
Marquis Kuroda, Nagamichi, D.Sc. 20 Nov 1941
Descriptions of two apparently new forms of mammals from Saghalien and S.W. Hondo, Japan.
Bulletin of the Biogeographical Society of Japan, 11: 113-115.
No.15
Uchida, Tohru 29 Dec 1941
Water mites from Manchoukuo.
Bulletin of the Biogeographical Society of Japan, 11: 117-119.