D V ,27-30; A II + 27-29; P 14-15; GR rudimentary; 29 spines along base
of D, 26-27 along A base; vertebrae 36-37. Depth 0.8-1.2, head 2.9-3.7 in
SL; eye 2.0-2.5 in head (for specimens 5-12 em SL).
Body silvery, with round black spots; anterior V rays and
end of C black. Attains 15 cm. Walvis Bay to Natal; Atlantic
and Indo-West Pacific oceans.
/'
/
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/
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140.2 Xeno/epidichthys da/g/eishi: 5 em (off Port Alfred).
Family No. 141: ZENIONTID AE
by P.C. Heemstra
Zeniontids
Zeniontiede
Body elongate oval, depth subequal to head length,
about 2.5 in SL. Upper jaw extremely protrusible, its length
subequal to eye diameter; minute teeth on jaws. Vertebrae
25-27; branchiostegal rays 7 or 8; pelvic fins 1,6, broadly
separated.
Fairly deep-water fishes (300 - 600 m). Two or 3 genera
with a total of 7 species; 1 genus and 2 species in our area.
Head length is measured with upper jaw retracted.
Genus Zenion Jordan & Evermann, 1896
Four species have been described, but Z. japonicum
Kamohara, 1934 and Z. longipinnis Kotthaus, 1970 are
apparently synonyms of Z. hololepis.
141: ZENIONTIDAE (ZENIONTIDS)
KEY TO SPECIES
la A 1+ 28-32 ............ .. ... .......... .. ... ... .. .................... Z. leptolepis
Ib A 1+23-28 ....................... ........ .. ... ........... .. ........ Z. hololepis
141.1 Zenion hololepis
(Goode & Bean, 1896)
Cyttus hololepis Goode & Bean, 1896: 225, Fig. 233 (Caribbean). Zenion hololepis: Smith, SFSA No. 272* .
D VI-VII,25-28; A 1+23-28; P 16; lower GR 14-16. Depth 2.5, head 2.7
in SL; eye 1.9-2.1 in head. Second D spine longest, equals eye diameter,
serrate on front margin; a row of small seutes along base of soft D & A.
Body reddish. Attains 10 cm. Caribbean and eastern
Atlantic; reported from 440 m off Delagoa Bay by Gilchrist
& von Bonde (1924: 17). Data taken from Goode & Bean,
1896; Poll, 1954, and 2 specimens from off Tanzania.
141.1 Zenion h%/epis: ea. 8 em (after Goode & Bean, 1896).
141.2 Zenion leptolepis
(Gilchrist & von Bonde, 1924)
Cyttus leptolepis Gilchrist & von Bonde, 1924: 17 (Natal & off Delagoa
Bay). Zenion leptolepis: Smith, SFSA No. 273.
D VI-VII,28-31; A 1+28-32; P 15-17; GRi+ 13-15 plus 1 or2rudiments.
Depth 2.5-2.8, head 2.8 in SL; eye 2.0-2.3 in head .
Attains 16 cm. Natal, Delagoa Bay and Kenya in 330 -
700m.
141.2 Zenion /epto/epis: 7 em Sl (Kenya).
441
of D, 26-27 along A base; vertebrae 36-37. Depth 0.8-1.2, head 2.9-3.7 in
SL; eye 2.0-2.5 in head (for specimens 5-12 em SL).
Body silvery, with round black spots; anterior V rays and
end of C black. Attains 15 cm. Walvis Bay to Natal; Atlantic
and Indo-West Pacific oceans.
/'
/
(
\
/
\
!
I I
\
.....
140.2 Xeno/epidichthys da/g/eishi: 5 em (off Port Alfred).
Family No. 141: ZENIONTID AE
by P.C. Heemstra
Zeniontids
Zeniontiede
Body elongate oval, depth subequal to head length,
about 2.5 in SL. Upper jaw extremely protrusible, its length
subequal to eye diameter; minute teeth on jaws. Vertebrae
25-27; branchiostegal rays 7 or 8; pelvic fins 1,6, broadly
separated.
Fairly deep-water fishes (300 - 600 m). Two or 3 genera
with a total of 7 species; 1 genus and 2 species in our area.
Head length is measured with upper jaw retracted.
Genus Zenion Jordan & Evermann, 1896
Four species have been described, but Z. japonicum
Kamohara, 1934 and Z. longipinnis Kotthaus, 1970 are
apparently synonyms of Z. hololepis.
141: ZENIONTIDAE (ZENIONTIDS)
KEY TO SPECIES
la A 1+ 28-32 ............ .. ... .......... .. ... ... .. .................... Z. leptolepis
Ib A 1+23-28 ....................... ........ .. ... ........... .. ........ Z. hololepis
141.1 Zenion hololepis
(Goode & Bean, 1896)
Cyttus hololepis Goode & Bean, 1896: 225, Fig. 233 (Caribbean). Zenion hololepis: Smith, SFSA No. 272* .
D VI-VII,25-28; A 1+23-28; P 16; lower GR 14-16. Depth 2.5, head 2.7
in SL; eye 1.9-2.1 in head. Second D spine longest, equals eye diameter,
serrate on front margin; a row of small seutes along base of soft D & A.
Body reddish. Attains 10 cm. Caribbean and eastern
Atlantic; reported from 440 m off Delagoa Bay by Gilchrist
& von Bonde (1924: 17). Data taken from Goode & Bean,
1896; Poll, 1954, and 2 specimens from off Tanzania.
141.1 Zenion h%/epis: ea. 8 em (after Goode & Bean, 1896).
141.2 Zenion leptolepis
(Gilchrist & von Bonde, 1924)
Cyttus leptolepis Gilchrist & von Bonde, 1924: 17 (Natal & off Delagoa
Bay). Zenion leptolepis: Smith, SFSA No. 273.
D VI-VII,28-31; A 1+28-32; P 15-17; GRi+ 13-15 plus 1 or2rudiments.
Depth 2.5-2.8, head 2.8 in SL; eye 2.0-2.3 in head .
Attains 16 cm. Natal, Delagoa Bay and Kenya in 330 -
700m.
141.2 Zenion /epto/epis: 7 em Sl (Kenya).
441