"lesser siren" meaning in English

{
  "forms": [
    {
      "form": "lesser sirens",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lesser siren (plural lesser sirens)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
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          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Salamanders",
          "orig": "en:Salamanders",
          "parents": [
            "Amphibians",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A species of aquatic salamander native to the eastern United States and northern Mexico, Siren intermedia, which has an elongated body possessing only two limbs: a pair of four-toed legs located behind the base of the head."
      ],
      "hyponyms": [
        {
          "word": "eastern lesser siren"
        },
        {
          "word": "western lesser siren"
        },
        {
          "word": "Rio Grande lesser siren"
        }
      ],
      "id": "en-lesser_siren-en-noun-01ul7TVL",
      "links": [
        [
          "salamander",
          "salamander"
        ],
        [
          "elongated",
          "elongated"
        ],
        [
          "limb",
          "limb"
        ],
        [
          "leg",
          "leg"
        ]
      ],
      "synonyms": [
        {
          "word": "two-legged eel"
        },
        {
          "word": "dwarf siren"
        },
        {
          "word": "mud eel"
        }
      ]
    }
  ],
  "word": "lesser siren"
}

{
  "forms": [
    {
      "form": "lesser sirens",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lesser siren (plural lesser sirens)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries missing English vernacular names of taxa",
        "Entries using missing taxonomic name (species)",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Salamanders"
      ],
      "glosses": [
        "A species of aquatic salamander native to the eastern United States and northern Mexico, Siren intermedia, which has an elongated body possessing only two limbs: a pair of four-toed legs located behind the base of the head."
      ],
      "hyponyms": [
        {
          "word": "eastern lesser siren"
        },
        {
          "word": "western lesser siren"
        },
        {
          "word": "Rio Grande lesser siren"
        }
      ],
      "links": [
        [
          "salamander",
          "salamander"
        ],
        [
          "elongated",
          "elongated"
        ],
        [
          "limb",
          "limb"
        ],
        [
          "leg",
          "leg"
        ]
      ],
      "synonyms": [
        {
          "word": "two-legged eel"
        },
        {
          "word": "dwarf siren"
        },
        {
          "word": "mud eel"
        }
      ]
    }
  ],
  "word": "lesser siren"
}