Tanaka, S., Ishihara, H. and others. (1998).  Adaptability and

  conservation of  freshwater Elasmobranches.  Report of

  research project, grant- in- aid for international scietntific

  research in the financial year of 1996 and 1997, 119 pp.

Ishihara, H.  (1998).  Survey of freshwater stingrays in the River

   Ganges.  River Biodiversity, (39): 9-13.

Homma, K. Maruyama, T., Itoh, T. Ishihara, H. and Uchida, S.(1999).  Biology of the  manta ray, Manta birostirs Walbaum in the

   Indo-Pacific.  CYBIUM, Proceedings of  the 5^th Indo-Pacific Fish

   Conference, 209-216.

McCoy, M.A., Ishihara, H. (1999).  The socioeconomic importance

  of sharks in the U.S. flag areas of the western and central

  Pacific.  U.S. Dept. of Commerce, 119  pp.

Ishihara, H. (2000).  Aquaculture development  in Vietnam,

  Document, 24 pp.

Ishihara, H. and Sugiyama, H. (2001).  Fishes of the River Mekong.  River  Biodiversity, (67): 7-15.

Ishihara, H., Homma, K. and Nakamura, R. (2001).  The occurrence

  of albinism in  individuals of the manta ray and Japanese

  common skate found in the western  north Pacific. I.O.P. Diving

  News, 12(7): 2-5.

Ishihara, H. (2001).  The relationships between the marine oil

  pollution and  Marine fishery resources-the pollution problems

  caused by Russian Tanker  Nakhotka. Aquanet, 2001(6): 42-46.

Ishihara, H. (2001).  The marine aquaculture sites in Vietnam.

  Aquanet, 2001 (9):  4-9..

Ishihara, H., Taniuchi, T., Mochizuki, T. and Homma, K. (2002).

  Reproductive strategy of the Japanese common skate, Raja

 kenojei Muller and Henle. Proceedings of the Sabah workshop

 on the conservation and biodiversity of the elasmobranchs. 

 Occasional paper, IUCN SSC (25) : 236-240.

Ishihara, H. (2003). Occurrence of Red Colossoma in the Sumatra Island, Indonesia, a threat to the biodiversity of the island, Biodiversity, (92): 12-15.

Yang, H-C and Ishihara, H. (2003). Grouping of sharks based on the location of gill slits- systematics position of the family Alopiidae. Rep. Jap. Soc. Elasm. Stud.  (38): 7-13.

Tanaka, S., Ishihara, H. and others. (2003).  Evolution, adaptability 

  and conservation of freshwater Elasmobranches in the

  southeastern part of Africa.  Report of research project, grant- in-

 aid for international scietntific research in the financial year of 

 2000 and 2002, 100 pp.

Taniuchi, T., Ishihara, H., Tanaka, S., Hyodo S., Murakami, M. and  

  Seret, B. (2003).   Occurrence of two species of   

  elasmobranches,  Carcharhinus leucus and Pristis microdon, in 

  the Betziboka River Basin, West Madagascar. CYBIUM, 27(3):

  237-241.

Ishihara, H., Senou, H., Morinaka, K. and Homma, K.  (2004). First record of the porcupine ray, Urogymnus asperrimus (Bloch et Schneider, 1801) from Japan, I.O.P. Diving News 15(8): 2-7.

Ishihara, H.(2004). International Plan of Action for the Conservation and Management of Sharks (IPOA-Sharks) is considered to be a Significant Element of the Codes of  the Conduct for Responsible Fisheries.  Book of Abstracts, IIFET, 2004 Japan, 187p.

Simpfendorfer, A.C., Cavanagh, R.D., Tanaka, S..and Ishihara, H.  (2005). Shark fisheries in the western north Pacicif.in Pages 11-11, Sharks, rays and chimaeras: the status of the Chondrichthyan fishes, 461 pp, IUCN Special Publication, Switzerland.

Ishihara, H.(2005). Assessment of Aetobatis narinari. In Pages354-355, Sharks, rays and chimaeras: the status of the Chondrichthyan fishes, 461 pp, IUCN Special Publication, Switzerland.

Ishihara, H.(2005). Assessment of Manta birostris. In Pages356-357, Sharks, rays and chimaeras: the status of the Chondrichthyan fishes, 461 pp, IUCN Special Publication, Switzerkand.

Ishihara, H., Himma, K. and Jeong, C.H. (2005). Comparative morphological study of the egg capsules of skates.  Journal of Driftological Society, (3): 31-41.

Chimura, Y. Ishihara, H. and Homma, K. (2006). Six-gill stingray collected from the Ensyu-nada, Japan.  Kaiyo Gougai, (45): 23-31.

Ishihara, H. and Kimoto, H. (2006). Elasmobranchs collected in the Fisheries Resourcse Survey in Ghana.  Kaiyo Gougai, (45): 37-45.

Ishihara, H. Suzuki, K. and Jeong, C.H. (2006). Various attempts to minimize by-catch of sharks in the fisheries activity.  Kaiyo Gougai, (45): 121-127.

Ishihara, H. Treloar, M. Bor, P. and Jeong, C.H. (in press). Comparative morphological study of the egg capsules of skates. Zootaxa.

Cheng, J-L, Ishihara, H. Zhang, E. (in press). Pseudobagrus brachyrhabdion, a new catfish (Teleostei: Bagridae) from the middle Yangtze River drainage, South China. Ichthyological Research.