Maurolicus walvisensis Parin & Kobyliansky 1993

Body fusiform; mouth moderate, oblique; pseudobranch present; gill rakers on first arch 22–31 (geographical variation). Branchiostegal rays 10, 3 on epihyal. Dorsal-fin rays 11 (9–12); pectoral-fin rays 17–19; pelvic fin-rays 7; anal finrays 22–28; dorsal origin in advance of anal-fin origin; anus near anal fin origin; dorsal adipose fin present. Vertebrae 33–35. Swimbladder well developed, gas–filled, euphysoclistous. Scales deciduous.

Photophores (adult): ORB l; OP 3, OP3 single; BR (6); IP (6); VAV (6); AC in 3 groups as 2 long groups preceded by a single, elevated photophore: 1 + (14–17) + (89) = 23–27; PV (12–13); OA (2) + 5; SO present.

Body silver with dark back bearing light brown dorso–lateral undulating strip and a pigment extension ventrally at procurrent rays; anterior two dorsal-fin rays, dorsalmost pectoral-fin ray and outer 2 or 3 caudal-fin rays pigmented; snout and bones of jaw transparent with characteristic pigment spots.

Vertebrae 33–35, usually 34. Gill rakers 25–29, usually 26–27. AC photophores 22–27, usually 24–26. Pectoral-fin rays 17–19. Head 29–31% SL, eye 10–11.5% SL, upper jaw 16–19% SL, maximum body depth well behind pectoral fin base 23–25% SL. Stomach pigmented, hind portion of intestine not pigmented.

Eastern South Atlantic along the continental slope of southwestern Africa, also at seamounts in western South Indian Ocean; most eastern record at 35°30'S, 53°E.

Mesopelagic to benthopelagic, upper continental slopes. A diel vertical migrator.

Parin N, Kobyliansky S. 1996. Diagnoses and distribution of fifteen species recognized in genus Maurolicus Cocco (Sternoptychidae, Stomiiformes) with a key to their identification. Cybium 20(2):185–195.

To at least 47 mm SL.

What little data exists for species of the genus suggest that copepods and euphausiids are the predominant prey item.

Vertebrae: 33 - 35

AC photophores 22-27, usually 24-26. Head 29-31% SL, eye 10-11.5% SL, upper jaw 16-19% SL, maximum body depth well behind pectoral fin base 23-25%. Stomach pigmented, hind portion of intestine not pigmented (Ref. 26775).

Maurolicus walvisensis és una espècie de peix pertanyent a la família dels esternoptíquids.

Maurolicus walvisensis is a species of ray-finned fish in the genus Maurolicus. It lives in the Southeast Atlantic and Western Indian Ocean.

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Maurolicus walvisensis Maurolicus generoko animalia da. Arrainen barruko Sternoptychidae familian sailkatzen da.

南大西洋穆氏暗光鱼（学名：Maurolicus walvisensis）为輻鰭魚綱巨口魚目褶胸鱼科的其中一種。分布於東南大西洋的南非及那米比亞海域，棲息深度可達200公尺，體長可達4.7公分，為深海魚類，會進行垂直性洄游。