Parasicydium Bandama

📖 Overview

Amphidromous freshwater species . Found around rocks in fast-flowing freshwaters; often found in the same habitat as Sicydium crenilabrum and, like Sicydium crenilabrum, it seems evasive and difficult to catch, and may be more widely distributed than is presently documented; maximum standard length reported 44.9 mm .

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 9 - 10; Anal spines: 1; Anal soft rays: 10. Diagnosis: upper lip with median notch, but otherwise usually smooth, and lacking a median tubercle just posterior to the median notch; posterior tip of upper jaw extends to level of anterior 1/3 or 1/2 of eye; each side of upper jaw with single row of 16-26 slender, tricuspid teeth; anterior teeth, attached to opposite halves of upper jaw, narrowly separated from each other; in male fish posterolateral part of upper jaw with 1-6 caniniform teeth; each half of lower jaw with 2-7 caniniform teeth and 22-26 labial teeth; in adults, anterior labial teeth, attached to opposite lower jaws, narrowly separated by a small projection of soft tissue at dentary symphysis; 50-57 scales in longitudinal series (including 2 scales on caudal fin base), 11-13 in rearward transverse series . Scales on dorsal and ventral parts of body not extending anteriorly beyond origin of 2nd dorsal and anal fins respectively, and scales adjacent to these fins cycloid; anterior scales on flanks (at level of pectoral fin) cycloid and slightly subdermal; scales on posterior part of flanks strongly ctenoid with the exception of last 2 rows, and scales on dorsal and ventral surfaces of caudal peduncle, which are cycloid . 1st dorsal fin: VI; 2nd dorsal fin: I,10 (rarely I,9); anal fin: I,10; pectoral fins: 16-18 (perhaps 15 in rare cases); caudal fin usually squarish with 17 segmented rays, 13 of which are branched; preopercular canal incorporating 3 pores . Urogenital papilla small and rounded . Coloration: Preserved specimens: head and flanks mottled dark brown, particularly on snout and upper lip which is entirely brown, except at angles of mouth; dark spot below center of eye, another anterior to operculum; flanks with 5-6 transverse bands of brown spots between posterior of pectoral fin base and caudal peduncle; these bands mostly dorsal to lateral midline, but darkest at midline and extend just ventral to this; ventral area of body pale; 1st dorsal fin with small black spots on rays, 2nd dorsal with brownish black speckling at base, middle, and tip of each ray; anal fin speckled brownish black with a diffuse longitudinal band of spots near distal margin; pectoral fins dark, with a spot at base and sometimes another one at tips; caudal fin with dark patch at base and fin speckled with brown, except on dorsal and ventral posterior tips of fin; sometimes with diffuse, horse-shoe-shaped band of denser pigmentation, curving from dorsal anterior to ventral anterior margin of fin .: elongated.

🌀 Behaviour

Behavioural data for Parasicydium Bandama is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Freshwater; benthopelagic; amphidromous . Tropical

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🌐 Names & Taxonomy

Scientific Synonyms

🦠 Common Diseases

The following diseases are known to affect Parasicydium Bandama.

🔍 Similar Species

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 6 records indexed .

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