Urotrygon microphthalmum

Delsman, 1941

Smalleyed round stingray
Classification: Elasmobranchii Myliobatiformes Urotrygonidae

Reference of the original description

Delsman, H.C. (1941)
Résultats scientifiques des croisières du Navire-école Belge "Mercator", vol. III, No. 3. Pisces. Mémoires du Musée Royal d'Histoire Naturelle de Belgique, (Ser. 2), 21, 47–82

Image of the original description

Urotrygon microphthalmum Delsman, 1941

Types
Urotrygon microphthalmum
Syntype: IRSNB: 53;

Description :

Citation: Urotrygon microphthalmum Delsman, 1941: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 11/2025

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Urotrygon microphthalmum Delsman, 1941, male, mature, TL (mm)= 181, 74, DW (mm)= 97, 88, TW (g) 34, 59 © Jones Santander-Neto

Common names
eng

Smalleyed round stingray, por

Raia

Short Description
Long and pointed snout. Disc angular in front and naked. Tail longer, pectorals are angular and caudal fin narrower. Upper surface gray and lower surface whitish [199].

Distribution
Western Atlantic: Venezuela and the mouth of the Amazon. Source: www.gbif.org

Size / Weight / Age
11.8 cm WD (male/unsexed; [2445])

Habitat
demersal; marine; depth range 9 - 55 m (Ref. 58018)

Dentition
Study about a detailed description of morphological characteristics in males and females of Urotrygon microphthalmum during ontogenetic development [24369].

Links: SEM-images of teeth

Remarks
shark-references Species-ID=7475;

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