Dactyloscopus Comptus

📖 Overview

Dactyloscopus Comptus (Dactyloscopus comptus) is a ray-finned fish of the family Dactyloscopidae. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 3.9 cm. With a trophic level of 3.8, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 11 - 13; Anal spines: 2; Anal soft rays: 28 - 30. Common amongst Dactyloscopidae: Small, elongate fishes. Head usually broad and deep, body tapering and compressed behind. Eyes on top of head, often protrusible; mouth moderate to large, oblique to vertical; upper and/or lower lips with fimbriae; jaw teeth minute, in 2 or more series; no teeth on roof of mouth (vomer and palatines). Opercular opening large, gill membrane free from isthmus; opercles membranous, large, usually overlapping on underside of head, typically fringed above with 2 to 24 fleshy fimbriae. Dorsal fin continuous, with an isolated or semi-isolated anterior finlet, or with 1 to 5 separate anterior rays; dorsal-fin spines 7 to 23; anal-fin spines 2; dorsal and anal fins free or united to caudal fin by fragile membranes; pectoral fins broad-based, usually enlarged in mature males; caudal-fin rays simple or branched; pelvic fins under throat (insertion anterior to pectoral-fin base), with 1 spine and 3 thickened segmented rays; all other rays simple. Head and venter naked, body elsewhere with large cycloid scales (smooth to touch); lateral line high anteriorly, deflecting ventrally behind pectoral fin to continue along middle of side to caudal-fin base where terminal lateral-line scale bears ventrally directed canal. Body coloration, variably pale to strongly pigmented with white, brown, or reddish; some forms with characteristic saddle-like bars crossing back; others plain, mottled, or with indications of lateral stripes. Species distinguished by: dorsal-fin origin on nape without a distinct anterior finlet; spines usually 11 to 13. First preopercular canal branched, with 2 or more distal pores. Segmented anal-fin rays 28 to 30. Posterior naris (a single pore) located on anterior rim of preorbital, adjacent to base of tubiform anterior naris; premaxillary pedicels reach well past rear margins of orbits. Upper lip fimbriae usually 10 to 13; eye with a distal ring of translucent spots or dermal flaps. Expanded eyestalk not exceptionally long and slender .: elongated.

🌀 Behaviour

Behavioural data for Dactyloscopus Comptus is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Marine; demersal. Tropical Central Atlantic: all specimens from the Bahamas, except for two provisionally identified specimens from Puerto Rico and St.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 4 records indexed .

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