Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis Author Linnaeus, Carolus text 1758 Laurentius Salvius Stockholm https://archive.org/download/mobot31753000798865/mobot31753000798865.pdf book 2C6327E1-5560-4DB4-B9CA-76A0FA03D975 https://doi.org/10.5962/bhl.title.542 3922206 Buceros bicornis [ spec. nov. ] B. fronte ossea plana antrorsum bicorni. Amoen. acad. 4. p ... Calao Pet. gaz. 43. t. 28. f. 6. & t. 31. f. 1. Will. Ornith. t. 17. f. 1. Habitat in China. Corpus magnitudine Gallinae, nigrum ; subtus pectore, abdomine, femoribus album. Macula alba in remigibus alarum. Cauda longiuscula. Rectrices 10, nigrae, extimis utrinque albis. Pedes virescentes: digitis 3 anticis ; 1 postico.