ctenoid


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Synonyms for ctenoid

resembling a comb

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References in periodicals archive ?
The main part of the body is covered with cycloid scales, but unlike females, males have also ctenoid scales on the head on the eye-side and on the trunk behind the head and close to dorsal and anal fins.
Scales on body progressively larger posteriorly, scale rows irregular, especially anteriorly; cheek fully covered with small scales; opercle naked except three scales at upper anterior corner; scales cycloid on head and anterodorsally on body, ctenoid posteriorly; scales ventrally on abdomen and chest cycloid; cycloid scales on pectoral-fin base; no scales on fins except for about three rows at base of caudal fin, smaller than last row on caudal peduncle.
Then ridged scales, the functional-morphologically analogous forms of ctenoid scales, appeared on the posterior trunk, and eventually the smooth scales were replaced by ridged, species-specific scales, except on the head and leading edges of fins, where smooth scales persist; the posterior part of the head carried scales of transitional type.
Heavy pigmentation appears at the base of the anal and caudal fins during the pre-juvenile stage, while silver ctenoid scales forming over the body cover the pre and post-anal pigments.
96) ctenoid, with 4-8 primary radii in anterior field only; radii deeply cleft at scale margin; focus located on posterior third of scale (Daniels 1996).
Maxillary, and mandible covered with small ctenoid scales but not on branchiostegals.
Scales of head, predorsal region, breast, belly, uppermost part of back and bases of caudal and pectoral fins cycloid, remainder of body scales ctenoid.
Dorsal-fin rays 11-12; anal-fin rays 10-12, rarely 12; total caudal-fin rays 42; configuration of caudal-fin rays in all specimens examined: 12 dorsal procurrent caudal rays + 10 segmented dorsal rays + 9 segmented ventral rays + 11 ventral procurrent rays; pectoral-fin rays 12-14; pelvic-fin rays 8; total vertebrae 56-60, modally 59; predorsal vertebrae 15-18; scales ctenoid, lateral-line scales 57-60, modally 60; predorsal scales 23-25; scales above the lateral-line to dorsal-fin base 5.
The introduction of scanning electron microscopy allowed its use for detailed study of fish scales, such as that by Roberts (1993) on ctenoid scales of Teleostei, revealing their microstructure and variety.
Scales small for the genus, progressively smaller anteriorly, extending on side of nape to above middle of opercle, but none in median predorsal zone or prepectoral area (if embedded scales are present in these two apparently naked areas, none could be dislodged); scales ctenoid posteriorly on body, becoming cycloid anterior to origin of second dorsal fin; small cycloid scales present on chest; no scales on fins except basal fourth to fifth of caudal fin.
Morphology of the scale: the scales of Anisotremus interruptus are ctenoid, big, hard and in a rectangular shape (the length is contained around 1.
Bryaninops earlei differs from all congeners in having large ctenoid scales (22-25 in longitudinal series); it is similar to B.
They found that, despite superficial similarities, the ctenial spines on the ctenoid scales of the cichlid Cichlasoma have a laminated construction and develop from the external layer of the elasmoid scale, whereas the dermal denticles on the head of the clupeomorph Denticeps have pulp cavities and develop like oral teeth.
Most of the body of the juvenile has very small ctenoid scales; each scale has a single denticle; the swim bladder, pectoral fins, and the conical appendix are no longer visible; and head length is 25% of the BL.