KEY TO SPECIES
1a Total GR on 1st arch 22-25; body depth 3.7-4.3 in
SL ........... ............. ... .. .. ............................. ... S. m. mizolepis
1b Total GR 28-30; body depth 3.2-3.8 in
SL ...... ... ... ........ ... ... ................ ... ....... .... ............ .... S. beanii
133.12 Scopelogadus beanii
(Gunther, 1887)
Plectromus crassiceps (non Gunther): Bean, 1885: 73 (western N.
Atlantic). Melamphaes beanii Gunther, 1887: 29 (substitute name for preoccupied P. crassiceps Bean). Melamphaes mizolepis (non Gunther):
Smith, SFSA No. 280 (on Gilchrist's record , probably misidentified).
Scopelogadus beanii: Ebeling, 1962: 18; Ebeling & Weed , 1963: 24*.
D 11,10-11; A 1,7-9; GR (8-10)+(18-22); vertebrae 25-27. Head 2.6-3.0,
length of C peduncle 2.6-3.0 in SL.
Attains 122 mm SL. Trawled below 600 m in Atlantic,
southern Indian and western South Pacific oceans.
133.12 Scopelogadus bean;;: 8 em SL (after Ebeling & Weed, 1963).
133.13 Scopelogadus mizolepis mizolepis
(Gunther, 1878)
Scopelus mizolepis Gunther, 1878: 185 (S. of New Guinea) . Melamphaes mizolepis: Smith, SFSA No. 280*, Scopelogadus mizolepis
mizolepis: Ebeling & Weed, 1963*.
D 11,10-12; A 1,8-9; GR (6-8)+(15-18) ; vertebrae 24-26. Head 2.4-2.9 ,
length of C peduncle 2.7-3.3 in SL.
Attains 94 mm SL. Trawled below 300 m in tropical Atlantic and Indian oceans to 20-30 0 S, and in western and
central tropical Pacific, where it intergrades with S.
mizoiepis bispinosus, its eastern Pacific counterpart (Ebeling & Weed, 1963).
133.13 Scopelogadus mizolepis mizolepis: 8.5 em SL (after Ebeling & Weed,
1963).
133a: STEPHANOBERYCIDAE (PRICKLEFISHES)
Monotypic.
Genus Sio Moss, 1962
133.14 Sio nordenskjoldii
(Lonnberg, 1905)
Melamphaes nordenskjoldii L6nnberg, 1905: 58 (NW of Falkland Ids.).
Sio nordenskjoldii: Moss, 1962: 5*; Grindley & Penrith, 1965: 284.
D III,9; A 1,8-9; GR (6-9)+(18-20); LS 25-30. Upper jaw not extending
past eye , 6.7-7.7; C peduncle 3.1-4.0 in SL. Lower edge of preopercle
finely serrate.
Attains 115 mm SL. Trawled below 200 m in South Atlantic and Indian oceans south of 30°; several records off South
Africa; 1 record from North Pacific.
133.14 Sionordenskjoldii: 7 em SL(after Moss, 1962).
Family No. 133a: STEPHANOBERYCIDAE
by p.e. Heemstra
Pricklefishes
Stekelvisse
Body oblong; dorsal and anal fins opposite and of similar
size; pelvic fins small, inserted well behind pectorals, with 5
soft-rays and no spine; head bones with strongly serrated
ridges (except in Maiacosarcus, which is known only from
the Pacific); lateral line papillate; no teeth on vomer or
palatines; vertebrae 30-33; orbitosphenoid bone absent.
Three monotypic genera of small bathypelagic or abyssal
benthic fishes (Ebeling & Weed, 1973). Stephanoberyx
monae Gill, 1883 is known only from the western North
Atlantic, Caribbean Sea and Gulf of Mexico; it has the
pelvic fins inserted nearer to vertical at base of pectorals
than to anal fin origin and 1-3 weakly developed dorsal fin
spines .
Genus Acanthochaenus Gill, 1884
No D spines; V nearer A origin than vertical at base of P;
scales with 1-3 large spines at their centres.
133a.1 Acanthochaenus lutkenii
GiII,1884
Acanthochaenus lutkenii Gill , 1884: 433 (37°12'N, 69"39'W ; offYirginia,
(U .S.A .); Ebeling & Weed, 1973: 420*.
431
1a Total GR on 1st arch 22-25; body depth 3.7-4.3 in
SL ........... ............. ... .. .. ............................. ... S. m. mizolepis
1b Total GR 28-30; body depth 3.2-3.8 in
SL ...... ... ... ........ ... ... ................ ... ....... .... ............ .... S. beanii
133.12 Scopelogadus beanii
(Gunther, 1887)
Plectromus crassiceps (non Gunther): Bean, 1885: 73 (western N.
Atlantic). Melamphaes beanii Gunther, 1887: 29 (substitute name for preoccupied P. crassiceps Bean). Melamphaes mizolepis (non Gunther):
Smith, SFSA No. 280 (on Gilchrist's record , probably misidentified).
Scopelogadus beanii: Ebeling, 1962: 18; Ebeling & Weed , 1963: 24*.
D 11,10-11; A 1,7-9; GR (8-10)+(18-22); vertebrae 25-27. Head 2.6-3.0,
length of C peduncle 2.6-3.0 in SL.
Attains 122 mm SL. Trawled below 600 m in Atlantic,
southern Indian and western South Pacific oceans.
133.12 Scopelogadus bean;;: 8 em SL (after Ebeling & Weed, 1963).
133.13 Scopelogadus mizolepis mizolepis
(Gunther, 1878)
Scopelus mizolepis Gunther, 1878: 185 (S. of New Guinea) . Melamphaes mizolepis: Smith, SFSA No. 280*, Scopelogadus mizolepis
mizolepis: Ebeling & Weed, 1963*.
D 11,10-12; A 1,8-9; GR (6-8)+(15-18) ; vertebrae 24-26. Head 2.4-2.9 ,
length of C peduncle 2.7-3.3 in SL.
Attains 94 mm SL. Trawled below 300 m in tropical Atlantic and Indian oceans to 20-30 0 S, and in western and
central tropical Pacific, where it intergrades with S.
mizoiepis bispinosus, its eastern Pacific counterpart (Ebeling & Weed, 1963).
133.13 Scopelogadus mizolepis mizolepis: 8.5 em SL (after Ebeling & Weed,
1963).
133a: STEPHANOBERYCIDAE (PRICKLEFISHES)
Monotypic.
Genus Sio Moss, 1962
133.14 Sio nordenskjoldii
(Lonnberg, 1905)
Melamphaes nordenskjoldii L6nnberg, 1905: 58 (NW of Falkland Ids.).
Sio nordenskjoldii: Moss, 1962: 5*; Grindley & Penrith, 1965: 284.
D III,9; A 1,8-9; GR (6-9)+(18-20); LS 25-30. Upper jaw not extending
past eye , 6.7-7.7; C peduncle 3.1-4.0 in SL. Lower edge of preopercle
finely serrate.
Attains 115 mm SL. Trawled below 200 m in South Atlantic and Indian oceans south of 30°; several records off South
Africa; 1 record from North Pacific.
133.14 Sionordenskjoldii: 7 em SL(after Moss, 1962).
Family No. 133a: STEPHANOBERYCIDAE
by p.e. Heemstra
Pricklefishes
Stekelvisse
Body oblong; dorsal and anal fins opposite and of similar
size; pelvic fins small, inserted well behind pectorals, with 5
soft-rays and no spine; head bones with strongly serrated
ridges (except in Maiacosarcus, which is known only from
the Pacific); lateral line papillate; no teeth on vomer or
palatines; vertebrae 30-33; orbitosphenoid bone absent.
Three monotypic genera of small bathypelagic or abyssal
benthic fishes (Ebeling & Weed, 1973). Stephanoberyx
monae Gill, 1883 is known only from the western North
Atlantic, Caribbean Sea and Gulf of Mexico; it has the
pelvic fins inserted nearer to vertical at base of pectorals
than to anal fin origin and 1-3 weakly developed dorsal fin
spines .
Genus Acanthochaenus Gill, 1884
No D spines; V nearer A origin than vertical at base of P;
scales with 1-3 large spines at their centres.
133a.1 Acanthochaenus lutkenii
GiII,1884
Acanthochaenus lutkenii Gill , 1884: 433 (37°12'N, 69"39'W ; offYirginia,
(U .S.A .); Ebeling & Weed, 1973: 420*.
431