Morphology Data of Neomyxine caesiovitta
Identification keys
Main Ref. Zintzen, V., C.D. Roberts, L. Shepherd, A.L. Stewart, C.D. Struther, M.J. Anderson, M. McVeagh, M. Noren and B. Fernholm, 2015
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

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

Diagnosis: 161–199 total slime pores, trunk length 63.5–68.3% TL, tail length 10.9–14.0% TL, slime glands not visible under skin, body colour pale with clear lateral blue band, margin of cloaca and at least some slime pore rims blackish; differs from N. biniplicata by its trunk length (63.5–68.3 versus 55.6–61.2% TL), tail length (10.9–14.0 versus 14.4–19.3% TL), slime glands aspect (not visible under skin versus visible under the skin like a series of beads), body colour (pale with clear lateral blue band versus pink-grey), margin of cloaca colour (blackish versus whitish), and slime pores rim colour (at least some blackish versus same colour as surrounding tissues) (Ref. 115309).

Description: 2/2 multicusp pattern; anterior unicusps, 6 (5–7); posterior unicusps, 6; left side cusps, 16 (15–17); prebranchial pores, 40 (37–48); trunk pores, 116 (102–133); tail pores, 18 (16–21); total pores, 174 (161–199); 7 pairs of gill pouches (6 for 1 paratype) and a single pair of gill apertures, the left aperture being confluent with the pharyngocutaneous duct; morphometrics as percentage of TL; prebranchial length, 21.9% (20.4–24.7%); trunk length, 64.4% (63.5–68.3%); tail length, 13.3% (10.9–14.0%); greatest body depth including ventral finfold, 3.6% (3.5–5.2%); greatest body depth excluding ventral finfold, 3.3% (3.1–4.7%); depth at gill aperture, 2.8% (2.7–4.3%); depth at cloaca, 2.6% (2.8–3.8%); tail depth, 2.5% (1.9–2.9%); body eel-like, elongate, slender, cylindrical, circular anteriorly, becoming compressed posteriorly; rostrum bluntly rounded; 2 bilaterally symmetrical nasalsinus papillae in the dorsal surface of the nasal sinus; eyespots absent; 3 pairs of barbels on head, 1st 2 subequal in size 1.1% TL (0.7–0.9% TL), 3rd one longer 1.2% TL (1.0–1.5% TL) and adjacent to oral cavity; ventral finfold starting in the vicinity of the gill aperture (22.3% TL, 20.6–24.1% TL) and extending to the cloaca, with length 63.3% TL (63.3–68.0% TL) and depth 1.7 mm (1.2–3.0 mm); a pair of ventrolateral branchial finfolds starting at 17.5% TL (14.1–19.2% TL) anteriorly and extending posteriorly to the gill apertures, with length 5.8% TL (5.0–10.4% TL) and depth 1.2 mm (0.5–2.4 mm); caudal finfold rounded, equally developed ventrally and dorsally, beginning immediately posterior to edge of cloaca, extending around tail to dorsal surface, ending just after the tail tip; slime glands not visible under the skin; dental muscle reaching the 1st gill pouch (counting from head), with length 9.6% TL (11.5–13.9% TL); ventral aorta not branching (Ref. 115309).

Colour: head and body pinkish to pale yellow to grey, with a pale light blue mid-flank band; the blue band still visible in preservative; barbels pale yellow to creamy white; cloaca and tail margins dusky blue-grey; some, often most, slime pores with a halo of dusky black contrasting against the rest of the body (Ref. 115309).

Ease of Identification

Meristic characteristics of Neomyxine caesiovitta

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels 3
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb


Dorsal fin(s)

Fins number
Finlets No. Dorsal   
Spines total
Soft-rays total
Adipose fin

Caudal fin


Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Hennyey, Andrea
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