Adrianichthys poptae Parenti, 2008

Parenti, Lynne R., 2008, A phylogenetic analysis and taxonomic revision of ricefishes, Oryzias and relatives (Beloniformes, Adrianichthyidae), Zoological Journal of the Linnean Society 154 (3), pp. 494-610 : 541

TYPE GENUS ADRIANICHTHYS WEBER, 1913

Adrianichthyidae Weber, 1913 (type genus Adrianichthys Weber, 1913 ).

Oryziatini Myers, 1938 (type genus Oryzias Jordan & Snyder, 1906, as tribe in the subfamily Fundulinae , family Cyprinodontidae ).

Horaichthyidae Kulkarni, 1940 (type genus Horaichthys Kulkarni, 1940).

Oryziatinae Myers, 1955 (type genus Oryzias Jordan & Snyder, 1906, as subfamily of Cyprinodontidae ).

Oryziatidae Rosen, 1964 (type genus Oryzias Jordan & Snyder, 1906; objective synonym of Oryziatini Myers).

Oryziidae .- Steyskal, 1980 (modified spelling of family-group name based on Oryzias ).

Diagnosis: The family Adrianichthyidae is diagnosed as monophyletic by 17 unambiguous synapomorphic characters: vomer absent, articular surface of the fourth epibranchial bone greatly expanded; ceratobranchial epiphysis represented by complex, branched cartilages; ceratobranchial 4 edentulous; palatine bone articulates with the maxilla (or premaxilla) via a dense ligament; rostral cartilage absent; Meckel’s cartilage one-half length of the dentary and articular bone orientated dorsally relative to the body axis; cartilaginous symphysis between the left and right dentary; metapterygoid absent; pterygoquadrate cartilage enlarged dorsally; no mandibulo-lacrimal ligament; dermosphenotic lateral or posterior to sphenotic; supracleithrum absent; posttemporal bone simple, with no ventral arm; anterior ramus of coracoid relatively broad, particularly at point of articulation with the cleithrum, and without cartilage; ventral accessory bone in the caudal skeleton; and ventral branch of the posterior lateral line nerve in adults without pored lateral line scales. An additional nine synapomorphies are reversed at internal nodes on the consensus cladogram ( Figs 30 , 31 and Discussion): scales in a lateral series number 70 or more; ventral hypohyal has an elongate blade-like ramus along ventral face of anterior ceratohyal; five branchiostegal rays; posteriormost branchiostegal ray articulates with truncated posterior ceratohyal; dorsal fin rays number 11–13; hooked procurrent caudal-fin rays; 44 or fewer diploid chromosomes; metacentric chromosomes (biarmed); and extremely large metacentric (fused) chromosomes present.

Composition: Two Recent genera, Adrianichthys Weber, 1913 , with four species A. kruyti Weber, 1913 , A. poptae ( Weber & de Beaufort, 1922) comb. nov., A. oophorus ( Kottelat, 1990a) comb. nov., and A. roseni Parenti & Soeroto, 2004 , and Oryzias Jordan & Snyder, 1906, with 24 species, O. carnaticus ( Jerdon, 1849) , O. celebensis ( Weber, 1894) , O. curvinotus ( Nichols & Pope, 1927) , O. dancena ( Hamilton, 1822) , O. bonneorum sp. nov., O. haugiangensis Roberts, 1998 , O. hubbsi Roberts, 1998 , O. javanicus ( Bleeker, 1854) , O. latipes ( Temminck & Schlegel, 1846) , O. sinensis Chen et al., 1989 , O. luzonensis ( Herre & Ablan, 1934) , O. marmoratus ( Aurich, 1935) , O. matanensis ( Aurich, 1935) , O. mekongensis Uwa & Magtoon, 1986 , O. minutillus Smith, 1945 , O. nebulosus Parenti & Soeroto, 2004 , O. nigrimas Kottelat, 1990a , O. orthognathus Kottelat, 1990a , O. pectoralis Roberts, 1998 , O. profundicola Kottelat, 1990b , O. sarasinorum ( Popta, 1905) comb. nov., O. setnai ( Kulkarni, 1940) comb. nov., O. timorensis ( Weber & de Beaufort, 1922) , and O. uwai Roberts, 1998 . A fossil genus and species, † Lithopoecilus brouweri de Beaufort, 1934 , from the Miocene of Sulawesi, is included tentatively here.

Remarks: Authorship of the family-group name based on the genus Oryzias has been attributed to Rosen (1964: 225) who used the phrase ‘ Oryziatidae , new family’ apparently unaware that Myers (1938: 137) authored the tribe Oryziatini . Spelling of the family-group name was modified subsequently to Oryziidae by Steyskal (1980).

Figures

Figure 30. Cladogram of relationships among ricefish species, classified herein in two monophyletic genera, Adrianichthys and Oryzias. Character states at each lettered node are described and discussed in the text. Nodes marked by solid circles are supported by at least one synapomorphy; those marked by an open circle are supported only by homoplasies under a fast character state optimization. Character support at each node is discussed in the Phylogenetic analysis.

Figure 31. Cladogram of relationships among ricefish species and outgroup taxa with character states recovered at each node under a fast character state optimization as inferred using WinClada and NONA. See text for discussion.