Morphology Data of Epiplatys cashneri
Identification keys
Abnormalities
Main Ref. Pezold, F., K. Ford and R.C. Schmidt, 2021
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Diagnosis: This species is distinguished from other Epiplatys species by its distinctive colouration: an orange body with red spots in males, body yellow with red spots in females; no longitudinal dark band or broad dark crossbars on the trunk, metallic blue highlights limited to head, nape and trunk above pectoral fins in males; yellow median fins with red spots in females, reddish orange median fins in males with dark red spots and dark red margins; preopercular canal with five pores; anterior supraocular sensory canals open grooves, closely approaching frontal canal, but not contiguous (Ref. 123813).

Description: A small species of Epiplatys with a rounded, ovate to spade-shaped, sub-lanceolate, caudal fin (Ref. 123813). Body compressed, much deeper than wide, sharply decreasing in depth at the caudal peduncle; ventral profile convex from head to end of anal fin base; caudal peduncle with concave dorsal and ventral profiles (Ref. 123813). Head large, about 30% of standard length, and flattened dorsally; snout pointed, jaws prognathous, mouth directed upwards; distal half of the maxillae free and mobile; dentary and premaxilla with many small recurved unicuspid teeth, outer row slightly larger than teeth of inner row (Ref. 123813). Frontal or nasal neuromasts in a single groove; anterior supraorbital row open and nearly contiguous with nasal row, in some specimens separated only by a narrow low ridge; posterior supraorbital row open, separated from anterior supraorbital row; postorbital row closed with two pores, preorbital system includes short closed canal with two pores opening ventrally into a short open canal above the maxilla; closed preopercular canal with five pores (Ref. 123813). Scales cycloid, entirely scaled except on ventral surface of head; frontal squamation with the G-scale overlapping the posterior E-scales; most specimens with two F-scales between anterior and posterior supraorbital canals with anterior F-scale overlapping the posterior scale, some specimens observed with a single large F-scale on right side; mid-longitudinal series 24-29 to hypural plate, with 1 or 2 more scales on caudal fin (Ref. 123813). Pectoral fins insert well below midline with 15-17 rays; dorsal fin inserts posterior to anal fin insertion, typically above the 7th to 10th anal fin ray; dorsal fin rounded with 8-11 fin rays; anal fin parallelogram-shaped with pointed apex in males, less pointed in females, with 14-17 rays; dorsal and anal fin rays not extensively produced in males; caudal fin with 11-15 rays, no extensions of caudal fin rays (Ref. 123813).

Colouration: In life, this species is characterized by yellow or orange fins with red spots; it also has rows of red spots on the trunk and faint chevrons along the posterior half of the body (Ref. 123813). Live colouration of females: greenish yellow background colour body and head, including chin; lips faintly dusky; gular region, cheeks and abdomen white; irregular rows of large red spots on flanks from above pectoral fins to caudal fin base; body scales with light red margins laterally, dusky margins dorsally; faint and variably complete dark subcutaneous, rearward-pointing chevrons on posterior half of trunk; fins light yellow; dorsal fin with several rows of red spots; anal fin distally yellow, clear towards base with red spots; caudal fin yellow with red spots in dorsal half concentrated near base of fin, forming small light red dashes away from base (Ref. 123813). Live colouration of males: reddish orange background colour on trunk, greenish yellow predorsum; head with bluish tint laterally above opercle, preopercle and pectoral fins, and on preopercle and opercle; cheeks beneath eyes whitish with small black speckles; chin and upper and lower jaws dusky; gular region and breast white to vertical through pectoral fins; orange from there to pelvic fins; trunk with rows of red spots; dark subcutaneous chevrons on posterior half of trunk apparent in juveniles and stressed adults; pectoral fins clear, pelvic fins yellow-orange; anal fin with red-reddish orange margin, remainder of fin may appear reddish orange or may show yellow submargin, fainter red and yellow colour towards base; in one male tips of anal fin rays were clear with thin red submargin, remainder of fin raysorange with yellow interradial highlights; dorsal fin orange with dark red margin and large red spots; caudal fin reddish orange with red interradial spots and yellow fin rays, lower margin dark red, thin dark red upper margin; lower distal margin clear with red submargin, thinner red submargin on upper edge in some (Ref. 123813). Colour in alcohol of females: scales on dorsum and flanks with broad brownish margins and light centers, forming five dark longitudinal lines on sides; vertical rearward pointed chevrons on flanks variably expressed from mid-anal fin to caudal fin base; snout and chin dark; cheeks beneath eyes, gular region and abdomen light; small spots on dorsal and anal fins, upper caudal fin near base (Ref. 123813). Colour in alcohol of males: similar in pigment to females, but chin not as dusky, may be light; centers of scales on dorsum and flanks darker, striping pattern on flanks muted as a result; dark margin on anal fin, and on dorsal and ventral edges of caudal fin (Ref. 123813).

Ease of Identification

Meristic characteristics of Epiplatys cashneri

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 24 - 29
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 8 - 11
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 14 - 17

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   15 - 17
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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