dcsimg

Diagnostic Description

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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 (Ref. 52855).
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Morphology

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Dorsal spines (total): 1113; Analspines: 2; Analsoft rays: 28 - 30
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Dactyloscopus comptus

provided by wikipedia EN

Dactyloscopus comptus is a species of sand stargazer native to the coastal waters of the Bahamas and possibly Puerto Rico and the Virgin Islands. It can reach a maximum length of 3.9 centimetres (1.5 in) SL.[2]

References

  1. ^ Williams, J.T. (2014). "Dactyloscopus comptus". IUCN Red List of Threatened Species. 2014: e.T47143391A48347477. doi:10.2305/IUCN.UK.2014-3.RLTS.T47143391A48347477.en. Retrieved 19 November 2021.
  2. ^ Froese, Rainer; Pauly, Daniel (eds.) (2013). "Dactyloscopus comptus" in FishBase. April 2013 version.
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Dactyloscopus comptus: Brief Summary

provided by wikipedia EN

Dactyloscopus comptus is a species of sand stargazer native to the coastal waters of the Bahamas and possibly Puerto Rico and the Virgin Islands. It can reach a maximum length of 3.9 centimetres (1.5 in) SL.

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