Pseudoambassis macleayi Castelnau

Gill, Anthony C., Russell, Barry C. & Nelson, Gary, 2018, F. L. de Castelnau’s Norman River fishes housed in the Macleay Museum, University of Sydney, Zootaxa 4459 (3), pp. 565-574: 567-568

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Pseudoambassis macleayi Castelnau


Pseudoambassis macleayi Castelnau  [= Ambassis macleayi  ]

Figure 2 View Figure

Pseudoambassis macleayi Castelnau 1878b: 43  (type locality, Norman River). Castelnau (1878b: 43) described Pseudoambassis macleayi  from “numerous specimens, the largest being under two inches and a half long” from the Norman River. Macleay (1881) simply listed the species in his catalogue of Australian fishes. McCulloch (1929b) considered it as a valid species of Ambassis  , but did not indicate whether he had seen any type specimens. Whitley (1935: 358) noted: “There are three specimens of macleayi  in the Macleay Museum for the Norman River, and the largest, 52 mm. in standard length, is selected as the lectotype of the species.” He mistakenly believed that Pseudoambassis Castelnau (1878b)  was preoccupied by Pseudambassis Bleeker (1874)  , and erected a replacement name, Austrochanda  , for P. macleayi  . Allen & Burgess (1990) considered P. macleayi  as a valid species of Ambassis  , and noted (p. 171): “Whitley (1935) designated a specimen, 52 mm SL, from the Norman River as lectotype. It was part of the Macleay Museum collection that was eventually transferred to the Australian Museum. However, this specimen is apparently lost, as it could not be located during the present study.”

Eschmeyer et al. (2018) noted that the lectotype of P. macleayi  is in MAMUAbout MAMU, but also listed a specimen in the Queensland Museum (QM I.5332) as a paralectotype, and further remarked that two specimens had been exchanged to the AMS from the QM. However, J. Johnson (pers. comm.) confirmed there are eight specimens of an original 10 in QM I.5332; the two missing specimens were exchanged to the AMS (AMS IA.6057–58). The hand-written label for the jar says “ Pseudoambassis convexus De Vis  Queensland cotypes”. The original registry entry for the jar says “ Austrochanda macleayi  ” in the identification column, and in the remarks column says “ paratype of Pseudoambassis convexus, De Vis  ” followed by “ 2 specimens exchanged to Aust. Mus. April 10, 1934 ”. These details are consistent with Whitley’s (1935) treatment of Pseudoambassis convexus De Vis (1884)  , which he considered to be a synonym of Austroambassis macleayi