How to Identify Speckled Sandperch

To identify Speckled Sandperch (Parapercis hexophtalma), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

The body is generally whitish to pale brown, covered with numerous small, dark brown to black spots, giving it a speckled appearance. A distinctive feature is a series of 5-7 prominent, black, ocellated (eye-like) spots along the lateral line, often ringed with white or yellow. The dorsal fin typically has dark spots or bands, and the caudal fin often has a dark blotch or band.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Series of 5-7 prominent ocellated spots along the lateral line, Speckled body coloration, Elongated, cylindrical body, Large, upward-facing eyes

Dorsal fin

Two dorsal fins; the first with 5 spines, the second with 1 spine and 20-22 soft rays. The first dorsal fin is typically lower than the second.

Tail fin

Truncate to slightly emarginate caudal fin.

Pectoral fin

Large and rounded pectoral fins, typically with 15-17 rays.

Distinctive fins

Pelvic fins are jugular (located anterior to the pectoral fins) and are often used to prop the fish up on the substrate.

Identification Tips

1. 1

   Ocellated Spots

   Count the number of prominent, black, eye-like spots along the lateral line. P. hexophtalma typically has 5-7 such spots, which are a key diagnostic feature.

2. 2

   Body Coloration

   Observe the overall speckled pattern of small dark spots on a lighter background, which distinguishes it from other sandperch species with different spotting or banding patterns.

3. 3

   Fin Ray Counts

   For precise identification, especially from similar species, fin ray counts (e.g., soft rays in the second dorsal fin, pectoral fin rays) can be used, though this often requires closer examination.

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