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In this paper, we first reported the complete mitogenomes of Psittacula derbiana and Psittacula eupatria. Respectively, P. derbiana and P. eupatria mitogenomes are 16,887 and 17,139 bp base pairs l...

A nestling Derbyan parrot (Psittacula derbiana) was presented with unusual subcutaneous swellings of the thigh regions, and poor growth. Histological examination revealed actinomycetous bacteria associated with multifocal systemic granulomas. The clinical and pathological findings of the case are presented, and some relevant aspects of actinomycetous bacterial infections in mammals and birds are discussed. Although granulomatous disease is encountered at times in avian species, the actinomycetous bacteria (Nocardia and Actinomyces spp.) have rarely been reported in association with multifocal granulomatous disease in birds.

Neopsittaconirmus palaeornis was originally described by Eichler (1943: 114; as Pflegeriella palaeornis) based on a single male from the Derbyan Parakeet, Psittacula derbiana (Fraser). Eichler (1943: 114) also examined a female, which appears to belong to the same species, found on a Blue Magpie Urocissa erythrorhyncha (Boddaert), almost certainly an accidental host. In his review of the genus Neopsittaconirmus, Guimarães (1974: 186) placed Pflegeriella palaeornis in that genus, and wrote: “Eichler’s description of this species is too deficient, and I had no specimens from the type-host.” Therefore, Guimarães was not able to describe it and compare it against the remaining species of Neopsittaconirmus.