H. Ota, 2004. Notes on reproduction and variation in the blue-tailed lizard, Eumeces elegans (Reptilia: Scincidae), on Kita-kojima Island of the Senkaku Group, Ryukyu Archipelago. Cur. Herpetol. 23: 37-41.

H. Ota, 2004. Field observations on a highly endangered snake, Opisthotropis kikuzatoi (Squamata: Colubridae), endemic to Kumejima Island, Japan. Cur. Herpetol. 23: 73-80.

H. Ota, Mi. Toda, G. Masunaga, A. Kikukawa, and Ma. Toda, 2004. Feral populations of amphibians and reptiles in the Ryukyu Archipelago, Japan. Global Envir. Res. 8: 120-132.

Werner, Y. L., H. Takahashi, Y.Yasukawa, and H. Ota, 2004. The varied foraging mode of the subtropical eublepharid gecko Goniurosaurus kuroiwae orientalis. J. Nat. Hist. 38: 119-134.

太田英利, 2004. リンネ協会主催シンポジウム "Squamate Evolution and Systematics: A Conference to Mark the Passing of Garth Underwood FLS" に参加して. 爬虫両棲類学会報 2004: 92-102.

太田英利・増永元, 2004. 慶良間列島の爬虫・両生類相. みどりいし 15: 29-35.

太田英利・小原祐二, 2004. 沖縄島南部におけるイボイモリの分布. 爬虫両棲 類学会報 2004: 113-115.

太田英利・藤井亮・岡本卓・疋田努, 2004. 八重山諸島波照間島の外来性爬虫 類に関する新知見およびこれまでに同島から報告された爬虫類の記録 に関するコメント．爬虫両棲類学会報 2004: 128-137.

城間恒宏・太田英利, 2004. 宮古諸島における外来性の両生・爬虫類の分布と 生息状況. 平良市総合博物館紀要 9: 57-66.

松井正文・疋田努・太田英利, 2004. 小学館の図鑑 NEO. 両生類 はちゅう類. 小 学館, 東京. 167 pp.

N. Nakada, H. Nyunoy, M. Nakamura, A. Hara, T. Iguchi, H. Takada, 2004. Identification of estrogenic compounds in wastewater effluent. Environ Toxic Chem, 23(12): 2807-2815

M. Mita, T. Uehara, and M. Nakamura, 2004. Speciation in four closely related species of sea urchins (genous Echinemetra) with special reference to acrosome reaction. Invert. Reprod. Devel. 45:3 169-174

Y. Kobayashi, T. Kobayashi, M. Nakamura, T. Sunobe, Craig E. Morrey, N. Suzuki and Y. Nagahama, 2004. Characterization of two types of cytochrome P450 aromatase in the serial-sex changing gobiid fish, Trimma okinawae. Zool. Sci., 21: 417-425

Ramji. K.B, M. Higa, S. Nakamura, and M. Nakamura, 2004. Aromatase inhibitor induces complete sex change in the protogynous honeycomb groupe (Epinephelus merra). Mol. Repro. Devel. 67: 303-307

Y. Nagahama, M. Nakamura, T. Kitano, and T. Tokumoto, 2004. Sexual plastucity in fish: a possible target of endocrine disruptor action. Envir. Sci.11,1: 73-82

Ramji. K.B, H. Komuro, M. Higa, and M. Nakamura, 2004. Sex inversion of sexually immature honeycomb grouper (Epinephelus merra) by aromatase inhibitor. Zool. Sci. 21: 305-310

Denda, T. and M. Yokota, 2004. Cytogeography of Ixeris nakazonei (Asteraceae: Lactuceae) in the Ryukyu Archipelago, Japan. J. Pl. Res. 117: 3-11.

仲松綾乃・傳田哲郎・横田昌嗣, 2004．ミタニクラマゴケ（イワヒバ科）は沖縄島に産するのか？　沖縄生物学会誌，42：39-45．
（英訳）Nakamatsu, A., Denda, T. & Yokota, M. 2004. Is Selaginelladavidii (Selaginellaceae) distributed on Okinawa-jima Island? Biol.Mag. Okinawa 42: 39-45.

Ohta, I. and K. Tachihara, 2004. Larval development and food habits of the marbled　parrotfish, Leptoscurus vaigiensis, associated with drifting algae. Ichthyol. Res. 51(1): 63-69.

Maeda, K. and K. Tachihara, 2004. Instream distributions and feeding habits of two species of sleeper, Eleotris acanthopoma and Eleotris fusca, in the Teima River, Okinawa Island. Ichthyol. Res. 51(3): 233-240

Hirose, E., and M. Akahor, 2004. Comparative morphology of the stolonic vessel in a didemnid ascidian and some related tissues in colonial ascidians. Zool. Sci., 21: 445-455.

Hirose, E., K. Ohtsuka, M. Ishikura, and T. Maruyama, 2004. Ultraviolet absorption in ascidian tunic and ascidian-Prochloron symbiosis. J. Mar. Biol. Ass. UK., 84: 789-794.

Hirose, E., M. Akahori, A. T. Oka, and A. Kurabayash, 2004. Some Prochloron-bearing didemnid ascidians collected from the reef shores of Iriomote Island (Okinawa, Japan). Biol. Mag. Okinawa, 42: 7-15.

Hirose, E. and T. Maruyama, 2004. What are the benefits in the ascidian-Prochloron symbiosis? Endocytobiosis Cell Res., 15: 51-62.

Nakano, K., A. Takemura, S. Nakamura, Y. Nakano, and G.K. Iwama, 2004. Changes in the cellular and organismal stress responses of the subtropical fish, the Indo-Pacific sergant (Abudefduf vaigiensis), due to the 1997-98 El Nino/Southern Oscillation. Environ. Biol. Fish. 70: 321-329

Morita, M., A. Takemura, and M. Okuno, 2004. Acclimation of sperm motility apparatus in seawater-acclimated euryhaline tilapia (Oreochromis mossambicus). J. Exp. Biol. 207: 337-345

Gwo, J.C., W.T. Yang, M.C. Kuo, A. Takemura, and H.Y. Cheng, 2004. Spermatozoal ultrastructures of two marine perciform teleost fishes, the goatfish, Paraupeneus spilurus (Mullidae) and the rabbitfish, Siganus fuscescens (Siganidae) from Taiwan. Tissue Cell, 36: 63-69

Rahman, M.S., B.H. Kim, A. Takemura, C.B. Park, and Y.D. Lee, 2004. Effects of moonlight exposure on plasma melatonin rhythms in the seagrass rabbitfish, Siganus canaliculatus. J. Biol. Rhythm. 19: 325-334

Rahman, M.S., B.H. Kim, A. Takemura, C.B. Park, and Y.D. Lee, 2004. Influence of light-dark and lunar cycles on the ocular melatonin rhythms in the seagrass rabbitfish, a lunar-synchronized spawner. J. Pineal Res. 37: 122-128

Takemura, A., E.S. Susilo, M.S. Rahman, and M. Morita, 2004. Perception and possible utilization of moonlight intensity for reproductive activities in a lunar-synchronized spawner, the golden rabbitfish. J. Exp. Zool. 301A: 844- 851

Dominguez, M., A. Takemura, M. Tsuchiya, and S. Nakamura, 2004. Impact of different environmental factors on immunoglobulin (IgM) levels in the Nile tilapia Oreochromis niloticus. Aquaculture 241: 491-500

Yakovleva I., R. Bhagooli, A. Takemura, and M. Hidaka, 2004. Differential susceptibility to oxidative stress of two scleractinian corals: role of antioxidant functioning of mycosporine-glycine. Comp Biochem. Physiol. 139B(4): 721-730

Takemura, A., M.S. Rahman, S. Nakamura, Y.J. Park, and K. Takano, 2004. Lunar cycles and reproductive activity in reef fishes with particular attention to rabbitfishes. Fisheries Sci. 5: 317-328

Kim, B.H., M.S. Rahman, S.J. Kim, Y.D. Lee, and A. Takemura, 2004. Alcohol treatment promotes conversion of testosterone to estradiol-17b in female tilapia, Oreochromis mossambicus. Fish Physiol. Biochem. in press.

Allingham, J. S., J. Tanaka, G. Marriott, and I. Rayment, 2004. Absolute stereochemistry of ulapualide A. Org. Lett. 6: 597-599.

Tanaka, C., Y. Yamamoto, M. Otsuka, J. Tanaka, T. Ichiba, G. Marriott, R. Rachmat, and T. Higa, 2004. Briarane diterpenes from two species of octocorals, Ellisella sp. and Pteroeides sp. J. Nat. Prod. 67: 1368-1373.

Ikeda Y., Y. Ueta, I. Sakurazawa, G. Matsumoto, 2004. Transport of the oval squid Sepioteuthis lessoniana Ferussac, 1831 in Lesson 1830-1831 (Cephalopoda: Loliginidae) for up to 24 hours and subsequent transfer to an aquarium. Fisheries Sci. 70: 21-27.

Ikeda Y., Y. Sakurai, 2004. Note on fertilizing capacity of spermatozoa stored in spermatangium: a possible extra sperm storage site in the Japanese common squid Todarodes pacificus. Suisanzoshoku, 51: 101-102.

Kasugai T., S. Shigeno, Y. Ikeda, 2004. Feeding and external digestion in the Japanese pygmy squid Idiosepius paradoxus (Cephalopoda : Idiosepiidae). J. Mollus. St. 70: 231-236.

Ikeda Y., K. Ito, G. Matsumoto, 2004. Does light intensity affect embryonic development of squid (Heterololigo bleekeri)? J. Mar. Biol. Ass. UK, 84: 1215- 1219.

Ikeda Y., R. Uji, H. Kidokoro, 2004. Notes on an exhausted Japanese common squid, Todarodes pacificus (Cephalopoda: Ommastrephidae), with an unusually short arm. Bull. Fac. Sci. Univ. Rykyus 77: 143-147.

池田　譲, 2004. 頭足類の社会性と知性基盤. 日本水産学会誌, 70: 783-784.

Matsuura, K. and T. Yoshino, 2004. A new triggerfish of the genus Abalistes (Tetraodontiformes, Balistidae) from the Western Pacific. Rec. Aust. Mus. 56(2): 189-194.

昆　健志・桜井　雄・吉野哲夫, 2004. 沖縄島中城湾で採集された頭索綱ナメク ジウオ科動物の一種. 沖縄生物学会誌 (42): 47-52.

本村浩之・吉野哲夫・高村直人, 2004. 日本産フサカサゴ科オニカサゴ属魚類 (Scorpaenidae: Scorpaenopsis) の分類学的検討. 魚類学雑誌51(2): 89- 115.

岩槻幸雄・上林大介・三國清士・吉野哲夫, 2004. チカメタカサゴPinjalo pinjalo の日本水域からの初記録. 魚類学雑誌 51(2): 163-167.

吉郷英範・佐々木興・吉野哲夫, 2004. メガネツバクロ（軟骨魚綱：トビエイ 目：ツバクロエイ科）はツバクロエイの新参異名．ホシザキグリーン 財団研究報告 (7): 155-167.

吉郷英範・吉野哲夫, 2004. 西表島で採集された日本初記録のヒルギヌメリテ ンジクダイ（新称）．I. O. P. Div. News 15(5): 2-4.

吉郷英範・市川真幸・吉野哲夫, 2004.　沖縄島で採集された日本初記録のハゼ 科魚類ヨミノハゼ（新称）. I. O. P. Div. News 15(11): 2-4.

Imai, H., J.-H. Cheng, K. Hamasaki and K. Numachi, 2004. Identification of four mud crab species (genus Scylla) using ITS-1 and 16S rDNA markers. Aquat. Living Resour. 17(1), 31-34, 2004.

Hamasaki, K., H. Imai, N. Akiyama and K. Fukunaga, 2004. Ovarian development and induced oviposition of the overwintering swimming crab Portunus trituberculatus (Brachyura: Portunidae) reared in the laboratory. Fisheries Sci., 70(6), 988-995, 2004.

Matsumura, S., Y. Tateishi, J. Yokoyama, and M. Maki, 2004. Expansion of Distribution Range and its Pollinators of Canavalia rosea (Leguminosae) in the Ryukyu Archipelago, Subtropical Eastern Asia. Acta Phytotax. Geobot. 55: 207-212.

立石庸一・松村俊一・山城考・新城和治, 2004. 琉球列島植物分布資料17. 沖縄 生物学会誌42: 61-68.

Komai, T. and M. Osawa, 2004. A new hermit crab species of Pylopaguropsis (Crustacea: Decapoda: Anomura: Paguridae) from the western Pacific, and supplemental note on P. laevispinosa McLaughlin and Haig. Zool. Sci. 21: 93- 104.

Osawa, M. and M. Takeda, 2004. Hermit crabs (Crustacea: Decapoda: Anomura: Paguroidea) from submarine caves in the Ryukyu Islands, south-western Japan. J. Nat. Hist. 38: 1097-1132.

Osawa, M., and J. Okuno, 2004. Lauriea siagiani Baba, 1994 (Crustacea: Decapoda: Anomura: Galatheidae), from Hachijo-jima Island, Izu Islands, Japan. Biogeography 6: 57-62.

Osawa, M., M. Mitsuhashi, and M. Takeda, 2004. Discovery of the type specimen of Lysiosquilla crassispinosa Fukuda, 1909 (Crustacea: Stomatopoda) and some Fukuda's stomatopod specimens. Benthos Res. 59: 1-10.

Osawa. M., 2004. A new shallow-water species of the genus Galathea (Decapoda: Anomura: Galatheidae) from the Ryukyu and Izu Islands, Japan. Crust. Res. 33: 92-102.

大澤正幸・藤田喜久, 2004. カニ類幼生に関する最近の話題. 海洋と生物 152 [26(3)]: 210-220. 生物研究社．