86.63 Hygophum reinhardtii
(Uitken, 1892)
Scopelus reinhardtii Liitken, 1892: 256, Fig. 16 (in part) (34°22'N,
18°1O'W). ?Myctophum reinhardti: Smith, SFSA No. 199 (in part).
Hygophum reinhardti: Bekker, 1965: 89'. Hygophum reinhardtii: Hulley,
1981: 72*.
D 13-15; A 21-25; P 13-16; GR (3-5)+(12-16); AO (5-9)+(6-8). Mature
males with single, supracaudalluminous gland; mature females with 3-4
coalesced, luminous patches infracaudally, sometimes separate.
Attains 61 mm. High-oceanic, mesopelagic; 600 - 850 m
(day); from surface to 200 m at night. Has not yet been
recorded in our area with certainty. Atlantic (40° -Ol°N and
05°N-Subtropical Convergence, but west of Benguela
Upwelling Region), southern Indian Ocean and North and
South Pacific (but absent in equatorial waters).
86.63 Hygophum reinhardtii: 3.5 em SL.
Genus Krefftichthys Hulley, 1981
Maxilla greatly expanded posteriorly, extending to or a
little behind vertical through rear margin of orbit; A base
longer than base ofD. Dn absent; Vn poorly developed; 5
PO; 4 VO; 2 SAO, almost horizontal. One species; probably in our area.
86.64 Krefftichthys anderssoni
(Lonnberg, 1905)
Myctophum anderssoni L6nnberg, 1905: 763 (48°54'S, 51°40'W); 1905:
61; Norman, 1930: 320. Protomyctophum (Protomyctophum) anderssoni:
Andriashev, 1962: 226'; Hulley, 1972: 217; Krefft, 1974: 232. Krefftichthys anderssoni: Hulley, 1981: 10'.
D 12-14; A 17-20; P 14-16; GR (6-8)+(19-22); AO 12-13. Mature males
with 5-8 separate, individually-complex, supracaudal luminous glands;
mature females with 2-4 separate, luminous glands infracaudally.
86.64 Krefftichthys anderssoni: 5.5 em SL.
86: MYCfOPHIDAE (LANTERNFISHES)
Attains 71 mm. High-oceanic, mesopelagic; upper 100 m
(night) south of Antarctic Polar Front, but deeper than
1 000 m at Subtropical Convergence. Taken at 43°17'S,
48°55'E, but not yet recorded from our area. Circumglobal
between Subtropical Convergence and Antarctic Divergence.
Genus Lampadena Goode & Bean, 1896
Maxilla not or slightly expanded posteriorly, extending
well behind orbit; A base subequal in length to or slightly
shorter than Dbase. Dn absent; Vn present; 5 or 6 PO; 3-6
VO; SAO series weakly angulate; AO series divided into
AOa and AOp; 1 Pol; 2+ 1 Prc. Both sexes with single supracaudal and single infracaudal luminous glands. Eight
species; 4 (possibly 7) in our area.
KEY TO SPECIES
1a P04 abruptly and highly elevated, about over POJ ...... L. luminosa
1b None of PO series abruptly and highly elevated ....................... 2
2a VO plus SAO 5-6; 3-4 AOa; Pol more than its
diameter below LL ............................................... L. anomala
2b VO plus SAO 7-9; 5-7 AOa; Pol its diameter or less
below LL ........................................................................ 3
3a Prc,-Prc2 interspace equal to or greater than 3 times the
diameter of a photophore of this series ................................... 4
3b Prc,-Prc2 interspace much shorter than 3 times diameter
of a photophore of this series ............................................... 5
4a Last 2 or 3 AOa entirely behind A base; 2 AOp;
infracaudal gland length at least 1.5 times CPD;
pterotic spine directed posteriorly; crescent of
whitish tissue on dorsal Yz of iris ................................. L. chavesi
4b No AOa behind A base; 4-5 (rarely 3) AOp;
infracaudal gland less than 1.5 times CPD;
pterotic spine directed downward and forward;
no crescent of whitish tissue on dorsal Yz of iris ................... L. dea
5a Distance between vertical at rear margin of
orbit and end of maxilla subequal to or longer
than horizontal diameter of eye ................................ L. pontifex
5b Distance between vertical at rear margin of orbit and
end of maxilla about Yz eye diameter ...................................... 6
6a Distance between A base and anterior margin
of infracaudal gland equal to or slightly greater
than length of infra caudal gland; photophores
small; AOp' (and usually AOp2) in front of
infracaudal gland; AOa level; GR 19-23 ................. L. specu/igera
6b Distance between A base and anterior margin of
infracaudal gland about equal to \-4 length of
infracaudal gland; photophores large; all AOp
well over infracaudal gland; last AOa usually
distinctly raised or elevated above level of rest
of AOa series; GR 24-26 .......................................... L. notialis
86.65 Lampadena anomala
Parr, 1928
Lampadena anomala Parr, 1928: 150, Fig. 35 (32OZ4'N, 64OZ9'W); Nafpaktitis & Nafpaktitis, 1969: 38*; Krefft, 1970: 280'; Hulley, 1981: 170*.
303
(Uitken, 1892)
Scopelus reinhardtii Liitken, 1892: 256, Fig. 16 (in part) (34°22'N,
18°1O'W). ?Myctophum reinhardti: Smith, SFSA No. 199 (in part).
Hygophum reinhardti: Bekker, 1965: 89'. Hygophum reinhardtii: Hulley,
1981: 72*.
D 13-15; A 21-25; P 13-16; GR (3-5)+(12-16); AO (5-9)+(6-8). Mature
males with single, supracaudalluminous gland; mature females with 3-4
coalesced, luminous patches infracaudally, sometimes separate.
Attains 61 mm. High-oceanic, mesopelagic; 600 - 850 m
(day); from surface to 200 m at night. Has not yet been
recorded in our area with certainty. Atlantic (40° -Ol°N and
05°N-Subtropical Convergence, but west of Benguela
Upwelling Region), southern Indian Ocean and North and
South Pacific (but absent in equatorial waters).
86.63 Hygophum reinhardtii: 3.5 em SL.
Genus Krefftichthys Hulley, 1981
Maxilla greatly expanded posteriorly, extending to or a
little behind vertical through rear margin of orbit; A base
longer than base ofD. Dn absent; Vn poorly developed; 5
PO; 4 VO; 2 SAO, almost horizontal. One species; probably in our area.
86.64 Krefftichthys anderssoni
(Lonnberg, 1905)
Myctophum anderssoni L6nnberg, 1905: 763 (48°54'S, 51°40'W); 1905:
61; Norman, 1930: 320. Protomyctophum (Protomyctophum) anderssoni:
Andriashev, 1962: 226'; Hulley, 1972: 217; Krefft, 1974: 232. Krefftichthys anderssoni: Hulley, 1981: 10'.
D 12-14; A 17-20; P 14-16; GR (6-8)+(19-22); AO 12-13. Mature males
with 5-8 separate, individually-complex, supracaudal luminous glands;
mature females with 2-4 separate, luminous glands infracaudally.
86.64 Krefftichthys anderssoni: 5.5 em SL.
86: MYCfOPHIDAE (LANTERNFISHES)
Attains 71 mm. High-oceanic, mesopelagic; upper 100 m
(night) south of Antarctic Polar Front, but deeper than
1 000 m at Subtropical Convergence. Taken at 43°17'S,
48°55'E, but not yet recorded from our area. Circumglobal
between Subtropical Convergence and Antarctic Divergence.
Genus Lampadena Goode & Bean, 1896
Maxilla not or slightly expanded posteriorly, extending
well behind orbit; A base subequal in length to or slightly
shorter than Dbase. Dn absent; Vn present; 5 or 6 PO; 3-6
VO; SAO series weakly angulate; AO series divided into
AOa and AOp; 1 Pol; 2+ 1 Prc. Both sexes with single supracaudal and single infracaudal luminous glands. Eight
species; 4 (possibly 7) in our area.
KEY TO SPECIES
1a P04 abruptly and highly elevated, about over POJ ...... L. luminosa
1b None of PO series abruptly and highly elevated ....................... 2
2a VO plus SAO 5-6; 3-4 AOa; Pol more than its
diameter below LL ............................................... L. anomala
2b VO plus SAO 7-9; 5-7 AOa; Pol its diameter or less
below LL ........................................................................ 3
3a Prc,-Prc2 interspace equal to or greater than 3 times the
diameter of a photophore of this series ................................... 4
3b Prc,-Prc2 interspace much shorter than 3 times diameter
of a photophore of this series ............................................... 5
4a Last 2 or 3 AOa entirely behind A base; 2 AOp;
infracaudal gland length at least 1.5 times CPD;
pterotic spine directed posteriorly; crescent of
whitish tissue on dorsal Yz of iris ................................. L. chavesi
4b No AOa behind A base; 4-5 (rarely 3) AOp;
infracaudal gland less than 1.5 times CPD;
pterotic spine directed downward and forward;
no crescent of whitish tissue on dorsal Yz of iris ................... L. dea
5a Distance between vertical at rear margin of
orbit and end of maxilla subequal to or longer
than horizontal diameter of eye ................................ L. pontifex
5b Distance between vertical at rear margin of orbit and
end of maxilla about Yz eye diameter ...................................... 6
6a Distance between A base and anterior margin
of infracaudal gland equal to or slightly greater
than length of infra caudal gland; photophores
small; AOp' (and usually AOp2) in front of
infracaudal gland; AOa level; GR 19-23 ................. L. specu/igera
6b Distance between A base and anterior margin of
infracaudal gland about equal to \-4 length of
infracaudal gland; photophores large; all AOp
well over infracaudal gland; last AOa usually
distinctly raised or elevated above level of rest
of AOa series; GR 24-26 .......................................... L. notialis
86.65 Lampadena anomala
Parr, 1928
Lampadena anomala Parr, 1928: 150, Fig. 35 (32OZ4'N, 64OZ9'W); Nafpaktitis & Nafpaktitis, 1969: 38*; Krefft, 1970: 280'; Hulley, 1981: 170*.
303