Volume 10 Number 1

January 1999
pages 1-96, 63 figs., 13 tabs.

Weitzman, Stanley H. and Luiz R. Malabarba: Systematics of Spintherobolus (Teleostei: Characidae: Cheirodontinae) from eastern Brazil (p. 1)

Reis, Roberto E. and Edson H. L. Pereira: Hemipsilichthys nudulus, a new, uniquely-plated species of loricariid catfish from the rio Araranguá basin, Brazil (Teleostei: Siluriformes) (p. 45)

Armbruster, Jonathan W. and Michael Hardman: Redescription of Pseudorinelepis genibarbis (Loricariidae: Hypostominae) with comments on behavior as it relates to air-holding (p. 53)

Soares-Porto, Luisa Maria, Stephen J. Walsh, Leo G. Nico and Joaquim Maia Netto: A new species of Gelanoglanis from the Orinoco and Amazon river basins, with comments on miniaturization within the genus (Siluriformes: Auchenipteridae: Centromochlinae) (p. 63)

Oliveira, José Carlos de and Osvaldo Takeshi Oyakawa: Two new species of Hemipsilichthys (Teleostei: Loricariidae) from Serra do Espinhaço, Minas Gerais, Brazil (p. 73)

Chang, Fonchii and Edgardo Castro: Crossoloricaria bahuaja, a new loricariid fish from Madre de Dios, southeastern Peru (p. 81)

Watson, Ronald E.: Stiphodon hydoreibatus, a new species of freshwater goby from Samoa (Teleostei: Gobiidae) (p. 89)

Book reviews (p. 96)

Volume 10 Number 2

April 1999
pages 97-200, 47 figs., 14 tabs.

Seegers, Lothar and Herbert Tichy: The Oreochromis alcalicus flock (Teleostei: Cichlidae) from lakes Natron and Magadi, Tanzania and Kenya, with descriptions of two new species (p. 97)

Tichy, Herbert and Lothar Seegers: The Oreochromis alcalicus flock (Teleostei: Cichlidae) from lakes Natron and Magadi, Tanzania and Kenya: a model for the evolution of “new” species flocks in historical times? (p. 147)

Seegers, Lothar, Rainer Sonnenberg and Raina Yamamoto: Molecular analysis of the Alcolapia flock from lakes Natron and Magadi, Tanzania and Kenya (Teleostei: Cichlidae), and implications for their systematics and evolution (p. 175)

Volume 10 Number 3

November 1999
pages 201-296, 65 figs., 11 tabs.

Miquelarena, Amalia M. and Roberto C. Menni: Rhamdella aymarae, a new species from the Itiyuro River, northern Argentina (Siluriformes: Pimelodidae) (p. 201)

Pavanelli, Carla Simone and Heraldo Antônio Britski: Description of a new species of Steindachnerina (Teleostei: Characiformes: Curimatidae) from the upper Rio Paraná basin, Brazil (p. 211)

Sabaj, Mark H., Jonathan W. Armbruster and Lawrence M. Page: Spawning in Ancistrus (Siluriformes: Loricariidae) with comments on the evolution of snout tentacles as a novel reproductive strategy: larval mimicry (p. 217)

Lucena, Zilda Margarete S. de and Carlos Alberto S. de Lucena: Moenkhausia tergimacula, a new species from the upper rio Tocantins, Brazil (Osteichthyes: Characidae) (p. 231)

Allen, Gerald R. and Aaron P. Jenkins: Two new species of Mogurnda (Osteichthyes: Eleotrididae) from the Etna Bay Region, Irian Jaya, Indonesia (p. 237)

Hartz, Sandra Maria, Alberto Carvalho Peret and Geraldo Barbieri: Reproduction of Gymnogeophagus lacustris, a cichlid endemic to southern Brazil (p. 247)

Toledo-Piza, Mônica, Naércio A. Menezes and Geraldo Mendes dos Santos: Revision of the neotropical fish genus Hydrolycus (Ostariophysi: Cynodontinae) with the description of two new species (p. 255)

Fang Fang and Maurice Kottelat: Danio species from northern Laos, with descriptions of three new species (Teleostei: Cyprinidae) (p. 281)

Volume 10 Number 4

December 1999
pages 297-392, 62 figs., 9 tabs.

Costa, Wilson J. E. M.: Cynolebias periodicus, a new annual fish from the rio Ibicuí drainage, southern Brazil (Cyprinodontiformes: Rivulidae) (p. 297)

Doi, Atsushi, Ryoichi Arai and Huan-Zhang Liu: Acheilognathus macromandibularis, a new bitterling (Cyprinidae) from the lower Changjiang basin, China (p. 303)

Sabino, José and Ivan Sazima: Association between fruit-eating fish and foraging monkeys in western Brazil (p. 309)

Retzer, Michael E., Leo G. Nico and Francisco Provenzano R.: Two new species of Acestridium (Siluriformes: Loricariidae) from southern Venezuela, with observations on camouflage and color change (p. 313)

Britz, Ralf and Maurice Kottelat: Two new species of gasterosteiform fishes of the genus Indostomus (Teleostei: Indostomidae) (p. 327)

Britz, Ralf and Maurice Kottelat: Sundasalanx mekongensis, a new species of clupeiform fish from the Mekong basin (Teleostei: Sundasalangidae) (p. 337)

Tan Heok Hui: A new species of Carinotetraodon from Sumatra and Borneo and validity of C. borneensis (Teleostei: Tetraodontidae) (p. 345)

Chernoff, Barry and Antonio Machado-Allison: Bryconops colaroja and B. colanegra, two new species from the Cuyuní and Caroní drainages of South America (Teleostei: Characiformes) (p. 355)

Ng, H. H.: Pterocryptis inusitata, a new species of silurid catfish from Laos (Teleostei: Siluriformes) (p. 371)

Ng, H. H. and M. Kottelat: Oreoglanis hypsiurus, a new species of glyptosternine catfish (Teleostei: Sisoridae) from Laos (p. 375)

Ng, H. H.: Laides longibarbis, a valid species of schilbeid catfish from Indochina (Teleostei: Siluriformes) (p. 381)

Kottelat, Maurice and Ng Heok Hee: Belodontichthys truncatus, a new species of silurid catfish from Indochina (Teleostei: Siluridae) (p. 387)