{
  "taxon_key": "worms:158836",
  "slug": "worms-158836",
  "scientific_name": "Argyropelecus lychnus",
  "common_name": "Tropical hatchetfish",
  "rank": "Species",
  "rank_order": 43,
  "taxonomic_status": "accepted",
  "status_checked": "2026-08-05",
  "parent_taxon_key": "worms:126196",
  "lineage": {
    "kingdom": "Animalia",
    "phylum": "Chordata",
    "class": "Teleostei",
    "order": "Stomiiformes",
    "family": "Sternoptychidae"
  },
  "ids": {
    "worms_id": 158836,
    "itis_id": 162214,
    "gbif_id": 2347575,
    "ncbi_id": null,
    "inat_id": null
  },
  "groups": [],
  "notes": "2026-08-05: itis_id 162214 via WoRMS external link",
  "direct": {
    "n_obs": 204,
    "n_samples": 204,
    "n_datasets": 2,
    "year_min": 1963,
    "year_max": 2023,
    "life_stages": [
      "larva"
    ]
  },
  "rollup": {
    "n_obs": 204,
    "n_taxa": 1,
    "n_species": 1,
    "n_datasets": 2,
    "year_min": 1963,
    "year_max": 2023
  },
  "datasets": [
    {
      "dataset_key": "swfsc_ichthyo",
      "n_obs": 191,
      "n_samples": 191,
      "year_min": 1963,
      "year_max": 2023,
      "life_stages": [
        "larva"
      ],
      "years": {
        "1963": 1,
        "1964": 3,
        "1966": 3,
        "1967": 1,
        "1968": 3,
        "1969": 3,
        "1972": 3,
        "1974": 3,
        "1975": 7,
        "1978": 6,
        "1983": 3,
        "1984": 7,
        "1985": 3,
        "1986": 6,
        "1987": 8,
        "1988": 4,
        "1989": 3,
        "1990": 4,
        "1991": 3,
        "1992": 2,
        "1993": 3,
        "1995": 4,
        "1996": 1,
        "1997": 4,
        "1998": 22,
        "1999": 2,
        "2000": 3,
        "2001": 4,
        "2002": 14,
        "2003": 6,
        "2004": 2,
        "2005": 6,
        "2006": 4,
        "2007": 3,
        "2008": 1,
        "2009": 5,
        "2010": 8,
        "2011": 4,
        "2012": 3,
        "2013": 5,
        "2014": 1,
        "2015": 2,
        "2016": 5,
        "2022": 1,
        "2023": 2
      },
      "sources": [
        {
          "name": "Argyropelecus lychnus",
          "common_name": "Tropical hatchetfish",
          "code": "102",
          "ids": {
            "worms_id": 158836,
            "itis_id": 162214,
            "gbif_id": 2347575
          },
          "flags": []
        }
      ]
    },
    {
      "dataset_key": "sio_mesopelagic-fish",
      "n_obs": 13,
      "n_samples": 13,
      "year_min": 2010,
      "year_max": 2012,
      "life_stages": [],
      "years": {
        "2010": 6,
        "2011": 5,
        "2012": 2
      },
      "sources": [
        {
          "name": "Argyropelecus lychnus",
          "common_name": null,
          "code": "Argyropelecus lychnus",
          "ids": {
            "worms_id": 158836,
            "itis_id": null,
            "gbif_id": null
          },
          "flags": []
        }
      ]
    }
  ]
}