A PROVISIONAL REVIEW OF THE GENUS STENOGOBIUS WITH DESCRIPTIONS OF A NEW SUBGENUS AND THIRTEEN NEW SPECIES. (PISCES TELEOSTEI GOBIIDAE).

WA Museum Records and Supplements | Updated 1 decade ago

Abstract: The gobiid genus Stenogobius Bleeker of the tropical Indo-Pacific is reviewed. the genus includes two subgenera of which one is described as new. and 23 species. 13 arc described as new. The subgenus Stenogobius Bleeker is of the Indian Ocean region and extreme western Pacific consisting of eight species included in two species groups: Insularigobius, subgen. nov. is known only from islands and consists of 15 species within two species groups. The subgenus Stenogobius is represented by S. gymnopomus (Bleeker). S. kenyae Smith and S. macropterus (Duncker) of Indian Ocean drainages and S. ingeri sp. nov. and S. mekongensis, sp. nov, of South China Sea drainages all of which form one species group: S. laterisquamatus (Weber). S. ophthalmoporus (Bleeker) and S. psilosinionus, sp, nov. from the extreme western Pacific form the second species group. The subgenus Insularigobius is represented by Stenogobius caudimaculosus, sp, nov., S. genivittatus (Valenciennes). S, hawaiiensis sp, nov., S. marqueti, sp. nov.. S randalli, sp. nov, and S. squamosus, sp, nov, from the central Pacific and S. alleni, sp. nov., S. blokzeyli (Bleeker). Sjch/lI1anni. sp, nov., S. hoeis. sp. nov.. S. kyphosus, sp, nov., S. marinus, sp, nov, and S. zurstrasseni (Popta) of the western Pacific form one species group: S. polyzona (Bleeker) from the western Indian Ocean and S. beauforti (Weber) from northern coastal streams of New Guinea form another distinctive group. The subgenus Stenogobius differs from Insularigobius by a combination of features which include coloration, counts of fin rays, rows of teeth, scales, color pattern on juveniles, sexual dimorphic and sexual dichromatic differences. Endemism is frequent in Stenogobiuss with species occuring within particular island groups, on particular islands or within discrete geographical regions.