240: GOBIIDAE (GOBlES)
240.16 8athygobius /addi
(Fowler, 1931)
Brownboy goby
Bruin dikkop
Rhinogobius laddi Fowler, 1931: 362, Fig. 6 (Fiji). Bathygobius fuscus:
Smith, 1959: 212 (in part); Winterbottom , 1976: 8 (in part).
D VI+I,9; A 1,8; P21-24; LS 28-32; TRB 9-11; PD9-13. Upper 5 or6 P
rays partly free from membranes; head distinctly depressed; mental frenum curved, with' long lateral lobes; prepelvic area largely naked.
Males: head and body uniformly dark brown; fins dusky
to black. Females: body light brown with 3-4 irregular
crossbars; crescentic dark bar at C base; D and C mottled;
other fins clear. Attains 5 cm. Common in our area from Inhaca to Coffee Bay, also known from tropical Indo-West
Pacific.
240.16 Bathygobius /addi: 3 em SL (Inhaea Id.).
240.17 8athygobius niger
(Smith, 1960)
Black minigoby
Swart dikkoppie
Pyosicus niger Smith, 1960: 312, Fig. 13 (Bizana coast, Pondoland) ;
1961: 570, No. 910c. Bathygobius niger: Winterbottom, 1976: 8*'
D VI+ 1,10; A 1,8; P 22-23; LS 48-50; TRB 23-24; PD 14-18.Upper 6 or
7 P rays free from membrane, with 4-7 branches; head very depressed ;
upper jaw (distinctly) protrudes ; mental frenum usually with a straight or
slightly curved margin; V frenum with a smooth margin; prepelvic area
naked.
Attains 6 cm. Known from Transkei to Natal, also India
and Sri Lanka.
240.17 Bathygobius niger: 4 em holotype (Transkei).
240.18 8athygobius sp. 9
Brownlined goby
Bruinstreep-dikkop
Bathygobius fuscus: Smith, 1959: 212 (in part).
D VI+I,9; A 1,8; P 19-21; LS 29-35; TRB 12-13; PD 12-17. Upper40r 5
P rays partly free from membranes; mental frenum broad, with short laterallobes, rarely curved; prepelvic area naked in front.
782
Body with numerous brown longitudinal lines; 2-3 brown
saddles under D; fins and lower surface of head dark brown
in male; D, C and P spotted in female. Attains 6.5 cm. IndoWest Pacific (common in Mozambique), sputh to Xora.
240.18 Bathygobius sp. 9: 4 em SL (Inhaea Id.).
Genus Caffrogobius Smitt, 1899
Cheek papillae pattern transverse; head pores Type A;
lips thick; V a disc; gill opening to just below P base; upper
P rays free in some species; mental frenum variably developed. D VI+I,9-14; A 1,9-12; P 17-23; LS 33-63. Vertebrae 27. Temperate and subtropical species found in estuaries, tide pools and subtidally. Seven species, 6 in our
area.
KEY TO SPECIES
la Head depressed; anterior nostrils with an elongate
flap; 1st D often with a black spot at rear of fin;
a broad truncate mental frenum .......................... .. .. .. .. .. .. ..... 2
I b Head rounded , anterior nostrils without flap or
with a short broad flap ; 1st D with stripes;
mental frenum low , usually triangular (except
in C. nudiceps) ................................................. .. .... .... ...... 3
2a Second D usually 1,11; A usually 1,10; LS 36-45;
prepelvic area naked; oblique comma-shaped
mark ventrally at C base; body with 3-5 elongate
dark bars laterally ...................... .................... .... C. agulhensis
2b Second D usually 1,10; A usually 1,9; LS 33-37;
prepelvic area with some scales; no oblique bar on
C base; body with small spots often forming
longitudinal stripes and ventral bars ......................... C. saldanha
3a D VI+I,12-14 (rarely 12); A usually I,ll ; LS 53-63;
pale vertical bar at P base , interrupted dorsally by
a longitudinal dark stripe ........................................... C. caffer
3b D VI+I,10-12 (rarely 12); A usually 1,9-10; LS 39-52 ;
P base with complete pale vertical bar or no vertical bar ............. 4
4a PD (5-16) to above front of opercle (midline
with few scales in fish from Cape region); vertical
stripes on body often interrupted along midside ;
head of adult with numerous dark spots ............ C. multifasciatus
4b PD (0-7) naked or with a few scales before 1st D;
vertical bars if present not interrupted; no small
dark spots on head ............................................... ..... .. ...... 5
5a D VI+I ,9-1O; A usually 1,9; P 18-20; P base
usually with 2 dark stripes .............................. .. ..... C. natalensis
5b D VI + 1,11-12; A 1,10-11; P 19-23; P base with
a pale vertical bar .......................................... .. ..... C. nudiceps
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