67 : STOMIIDAE (SeALY DRAGON FISHES)
67.2 Stomias boa boa
(Risso, 1810)
Esox boa Risso, 1810: 330, PI. 10, Fig. 34 (Mediterranean Sea). Stomias
boa: Cuvier, 1816: 184; Smith , SFSA No. 131*. Stomias boa boa: Ege,
1934: 14* ; Gibbs, 1969: 4; Hulley, 1972: 210; Shcherbachev & Novikova,
1976: 104*.
017-22 ; A 18-22 ; P 6; V 5; PV 44-50 , OV 44-49 ; vertebrae 74-82.
Body iridescent silver. Attains more than 30 cm . Taken
offshore throughout the area. Circumglobal between about
20° and 4SoS; a separate population in Mediterranean Sea
and off northwest Africa.
67.3 Stomias nebulosus
Alcock, 1889
Stomias nebulosus Alcock , 1889: 451 (off Ceylon) ; Ege, 1934: 39 ,
Gibbs , 1969: 7; Shcherbachev & Novikova, 1976: 99 *
015-20; A 18-26; P 6-7; V 5; PV 33-38, OV 32-38; vertebrae 59-65.
Body iridescent silver. Attains almost 18 cm. Two specimens taken off Delagoa Bay (2S036'S, 3S 0 21'E) in 730 m.
Tropical waters of Indian and Pacific oceans.
67.3 Stomias nebulosus: 8.5-12 em SL composite? (after Brauer, 1906).
Family No. 68: CHAULIODONTIDAE
by R.H. Gibbs, Jr.
Viperfishes
Addervisse
Body long, slender, with hexagonal areas ("scales") on
sides, covered by a gelatinous membrane in life; 2 rows of
prominent photophores on ventral part of body on each
side; hexagonal areas with 1 or more smaller photophores;
jaws with enormous fangs ; dorsal fin close to head, the first
ray prolonged; anal fin close to tail; dorsal and ventral
adipose fins present; chin barbel short and simple, becoming smaller or disappearing as fish grows.
Occurring in mid-depths of open oceans around the
world; juveniles often migrating to near-surface waters at
night. One genus, Chauliodus Schneider, 1801, with 8
species. Recently revised by Parin & Novikova (1974).
230
KEY TO SPECIES
1a Predorsallength 19-26% SL in specimens 3-9 cm SL,
20-23% SL in specimens over 9 cm; 0 origin over 4th to
8th OV photophore (specimens from Atlantic
and south of 34°S) or 6th to 10th OV photophore
(specimens from tropical Indian Ocean) ; barbel lost at
10-14 cm SL; maximum SL greater than 30 cm .... ........... C. sloani
1b Predorsallength 26-32% SL in specimens 3-9 cm SL,
23-30% SL in specimens over 9 cm; 0 origin over
8th to 11th OV photophore ; barbel lost at 4-9 cm SL;
maximum SL 145 mm .......... ........ ......................... C. minimus
68.1 Chauliodus minimus
Parin & Novikova, 1974
Chauliodus danae (non Regan & Trewavas): Norman, 1930: 308 ; Ege,
1948: 54. Chauliodus minimus Parin & Novikova, 1974: 295, Fig. 17
(South Atlantic).
06-7; A 11-13; P 11-14; V 7; IC 63-67; OA 42-45; vertebrae 56-57
(includes un ossified anterior centra).
Body iridescent silver. Attains 14.S cm. Taken offshore
in the Atlantic; South Atlantic between 7° and 40 0 S.
68.1 Chauliodus minimus: 6 em SL holotype and mental barbel (drawn after
Parin & Novikova, 1974).
68.2 Chauliodus sloani
Schneider, 1801
Chauliodus sloani Schneider, in Bloch & Schneider, 1801 ; 430; Smith ,
SFSA No. 145; Morrow, 1964: 281 ; Grindley & Penrith, 1965: 282 ; Hulley ,
1972: 210; Parin & Novikova, 1974: 275; Gibbs, 1984: 337*.
o 5-8; A 10-13; P 9-14; V 7; IC 62-72 ; OA 41-49; vertebrae 53-62
(includes un ossified anterior centra).
Body iridescent silver. Attains more than 30 cm. Taken
offshore throughout the area . Circumglobal between SOON
and SooS.
68.2 Chauliodus sloani: ca. 16 em SL composite (after Morrow, 1964); head
(after Regan & Trewavas, 1929).
67.2 Stomias boa boa
(Risso, 1810)
Esox boa Risso, 1810: 330, PI. 10, Fig. 34 (Mediterranean Sea). Stomias
boa: Cuvier, 1816: 184; Smith , SFSA No. 131*. Stomias boa boa: Ege,
1934: 14* ; Gibbs, 1969: 4; Hulley, 1972: 210; Shcherbachev & Novikova,
1976: 104*.
017-22 ; A 18-22 ; P 6; V 5; PV 44-50 , OV 44-49 ; vertebrae 74-82.
Body iridescent silver. Attains more than 30 cm . Taken
offshore throughout the area. Circumglobal between about
20° and 4SoS; a separate population in Mediterranean Sea
and off northwest Africa.
67.3 Stomias nebulosus
Alcock, 1889
Stomias nebulosus Alcock , 1889: 451 (off Ceylon) ; Ege, 1934: 39 ,
Gibbs , 1969: 7; Shcherbachev & Novikova, 1976: 99 *
015-20; A 18-26; P 6-7; V 5; PV 33-38, OV 32-38; vertebrae 59-65.
Body iridescent silver. Attains almost 18 cm. Two specimens taken off Delagoa Bay (2S036'S, 3S 0 21'E) in 730 m.
Tropical waters of Indian and Pacific oceans.
67.3 Stomias nebulosus: 8.5-12 em SL composite? (after Brauer, 1906).
Family No. 68: CHAULIODONTIDAE
by R.H. Gibbs, Jr.
Viperfishes
Addervisse
Body long, slender, with hexagonal areas ("scales") on
sides, covered by a gelatinous membrane in life; 2 rows of
prominent photophores on ventral part of body on each
side; hexagonal areas with 1 or more smaller photophores;
jaws with enormous fangs ; dorsal fin close to head, the first
ray prolonged; anal fin close to tail; dorsal and ventral
adipose fins present; chin barbel short and simple, becoming smaller or disappearing as fish grows.
Occurring in mid-depths of open oceans around the
world; juveniles often migrating to near-surface waters at
night. One genus, Chauliodus Schneider, 1801, with 8
species. Recently revised by Parin & Novikova (1974).
230
KEY TO SPECIES
1a Predorsallength 19-26% SL in specimens 3-9 cm SL,
20-23% SL in specimens over 9 cm; 0 origin over 4th to
8th OV photophore (specimens from Atlantic
and south of 34°S) or 6th to 10th OV photophore
(specimens from tropical Indian Ocean) ; barbel lost at
10-14 cm SL; maximum SL greater than 30 cm .... ........... C. sloani
1b Predorsallength 26-32% SL in specimens 3-9 cm SL,
23-30% SL in specimens over 9 cm; 0 origin over
8th to 11th OV photophore ; barbel lost at 4-9 cm SL;
maximum SL 145 mm .......... ........ ......................... C. minimus
68.1 Chauliodus minimus
Parin & Novikova, 1974
Chauliodus danae (non Regan & Trewavas): Norman, 1930: 308 ; Ege,
1948: 54. Chauliodus minimus Parin & Novikova, 1974: 295, Fig. 17
(South Atlantic).
06-7; A 11-13; P 11-14; V 7; IC 63-67; OA 42-45; vertebrae 56-57
(includes un ossified anterior centra).
Body iridescent silver. Attains 14.S cm. Taken offshore
in the Atlantic; South Atlantic between 7° and 40 0 S.
68.1 Chauliodus minimus: 6 em SL holotype and mental barbel (drawn after
Parin & Novikova, 1974).
68.2 Chauliodus sloani
Schneider, 1801
Chauliodus sloani Schneider, in Bloch & Schneider, 1801 ; 430; Smith ,
SFSA No. 145; Morrow, 1964: 281 ; Grindley & Penrith, 1965: 282 ; Hulley ,
1972: 210; Parin & Novikova, 1974: 275; Gibbs, 1984: 337*.
o 5-8; A 10-13; P 9-14; V 7; IC 62-72 ; OA 41-49; vertebrae 53-62
(includes un ossified anterior centra).
Body iridescent silver. Attains more than 30 cm. Taken
offshore throughout the area . Circumglobal between SOON
and SooS.
68.2 Chauliodus sloani: ca. 16 em SL composite (after Morrow, 1964); head
(after Regan & Trewavas, 1929).