| Family | Scientific Name | Author | Year | Common Name |
| Stomiidae | Chauliodus danae | Regan & Trewavas | 1929 | Dana Viperfish |
Family Chauliodontidae (genus Chauliodus) – Body long, slender, covered by a gelatinous membrane, maximum depth of body at back of head. Chin barbel short and simple, becoming reduced or absent during development. Dorsal fin near head, its origin about half way between that of pectoral and pelvic fins. First dorsal-fin ray prolonged. Dorsal and ventral adipose fins present. Five longitudinal rows of scales covering body, delineated by a hexagonal pigmentation pattern (FAO 2002).
All Chauliodus Species: Body with scales or with hexagonal scale pockets. First dorsal fin located near head; anal fin located near caudal fin (FAO 2002).
Chauliodus danae
Unique Characteristics: Dorsal-fin origin over 9th-12th OVphotophore. Barbel not enlarged at end (FAO 2020).
Similar Species:
Chauliodus sloani, Manylight Viperfish
Manylight Viperfish, Chauliodus sloani. Dorsal-fin origin over 5th-8th OV photophore. Total IC photophores 64-72 (FAO 2020).
References:
FAO. 2002. The living marine resources of the Western Central Atlantic. Volumes 1-3. K.E. Carpenter (ed.). Food and Agriculture Organization of the United Nations, Rome, Italy. 4099 pp. http://www.fao.org/3/y4160e/y4160e00.htm.
(FAO 2020) Sutton, T.T., P.A. Hulley, R. Wienerroither, D. Zaera-Perez, and J.R. Paxton. 2020. Identification guide to the mesopelagic fishes of the central and south east Atlantic Ocean. FAO Species Identification Guide for Fishery Purposes. Rome, FAO. 327 pp. https://doi.org/10.4060/cb0365en.