• gimantopus mexicanus,
• bimantopus mexicanus,
• nimantopus mexicanus,
• jimantopus mexicanus,
• uimantopus mexicanus,
• yimantopus mexicanus,
• humantopus mexicanus,
• hjmantopus mexicanus,
• hkmantopus mexicanus,
• homantopus mexicanus,
• h9mantopus mexicanus,
• h8mantopus mexicanus,
• hinantopus mexicanus,
• hikantopus mexicanus,
• hijantopus mexicanus,
• himzntopus mexicanus,
• himsntopus mexicanus,
• himwntopus mexicanus,
• himqntopus mexicanus,
• himabtopus mexicanus

The adjective form of the word "Himantopus Mexicanus" is "Mexican".

The plural form of the word "Himantopus Mexicanus" is "Himantopus Mexicanus" since it is a Latin scientific binomial name, commonly known as the scientific name for the black-necked stilt. In scientific nomenclature, the plural form remains the same as the singular form.

The singular form of the word "Himantopus Mexicanus" is "Himantopus Mexicanus" itself. This term refers to a specific species of bird called the "black-necked stilt". The singular and plural forms of the scientific name remain the same.