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Hypanus rubioi
Mejía-Falla, Navia, Cardeñosa & Tavera, 2025
Classification: Elasmobranchii Myliobatiformes Dasyatidae
Reference of the original description
New Species of the Genus Hypanus (Dasyatidae) from the Eastern Tropical Pacific Ocean. Ichthyology & Herpetology, 113(1), 44–60
New Species of the Genus Hypanus (Dasyatidae) from the Eastern Tropical Pacific Ocean. Ichthyology & Herpetology, 113(1), 44–60
Types
Hypanus rubioi
Holotype: CIRUV: 21336; Paratype: CIRUV: 24073; CIRUV: 24074; CIRUV: 24075; CIRUV: 24008;
Hypanus rubioi
Holotype: CIRUV: 21336; Paratype: CIRUV: 24073; CIRUV: 24074; CIRUV: 24075; CIRUV: 24008;
Images of types
Description :
Citation: Hypanus rubioi Mejía-Falla, Navia, Cardeñosa & Tavera, 2025: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 04/2025
Please send your images of "Hypanus rubioi" to info@shark-references.com
Hypanus rubioi Mejía-Falla, Navia, Cardeñosa & Tavera, 2025, holotype, CIRUV-021336, male, 1,897 mm disc width, from Bahia Málaga, Colombia © Jose Tavera
Hypanus rubioi Mejía-Falla, Navia, Cardeñosa & Tavera, 2025, holotype, CIRUV-021336, male, 1,897 mm disc width, from Bahia Málaga, Colombia © Jose Tavera
Common names
Raya picuda, 
Longnose Pacific Stingray
Raya picuda, Longnose Pacific Stingray
Short Description
Original diagnosis of Mejía-Falla, Navia, Cardeñosa & Tavera, 2025 [34185]: A large-sized species of Hypanus (attaining about 1,250 mm DW; Fig. 2) with the following combination of characters: front-side margins of disc concave; snout pointed protruding sharply, rostrum angle 93– 1058; disc equal or wider than long, DL 1.0–1.1 times in DW; long slender tail, 2.4 to 3.1 times disk length; tail width 0.6–1.1 times its height, at pelvic fin posterior end; ventral fold low and slender, its length 1.6–2.7 times DW, 13–25 times its depth below pelvic fin posterior end; preoral length 28–32% DW; distance between nostrils 9–11% DW; distance between first gill slits 17–19% DW; distance from anterior cloaca to sting 0.4–0.8 times in precloacal length (Table 1); dorsal surface rough with a row of enlarged denticles, flanked on each side by a short row of irregular mid-scapular blunt thorns; midline denticles extending from behind the head back into the tail to caudal sting.
Hypanus rubioi is distinguished from its two eastern Pacific sympatric species H. longus and H. dipterurus by having a long (29 to 32% in DW), pointed rostrum compared to 17 to 20% in H. longus, and a very long tail (2.4 to 3.1 times its disc length) compared to 2.4 in H. longus and 1.2 to 1.6 in H. dipterurus (Fig. 3). Hypanus rubioi shares with H. longus a small ventral caudal fin fold fitting 0.4 to 0.7 times the length of the disc and 0.55 to 0.62 times, respectively, while H. dipterurus has a larger fold where its length fits 0.33 times the length of the disc. Hypanus rubioi differs from H. dipterurus in the number of times the mouth width fits in the preoral length. While in the new species the mouth fits 3.1 to 3.7 times, in H. dipterurus it fits only 2.5 to 3 times. The size of the eye also allows separating the species. In H. rubioi the eye is smaller (1.7 to 3.4% of the disc width, while in H. longus it is 3.1 to 5.6%). The ratio between internostril width and pre-nasal length is smaller in H. longus (1.3–1.8) compared to values of 2.2 to 2.8 times in H. rubioi. Finally, the eye of H. rubioi fits 4 to 9 times in the interorbital distance, while in H. longus it fits 2 to 4 times and in H. dipterurus it fits 2.5 times.
Original diagnosis of Mejía-Falla, Navia, Cardeñosa & Tavera, 2025 [34185]: A large-sized species of Hypanus (attaining about 1,250 mm DW; Fig. 2) with the following combination of characters: front-side margins of disc concave; snout pointed protruding sharply, rostrum angle 93– 1058; disc equal or wider than long, DL 1.0–1.1 times in DW; long slender tail, 2.4 to 3.1 times disk length; tail width 0.6–1.1 times its height, at pelvic fin posterior end; ventral fold low and slender, its length 1.6–2.7 times DW, 13–25 times its depth below pelvic fin posterior end; preoral length 28–32% DW; distance between nostrils 9–11% DW; distance between first gill slits 17–19% DW; distance from anterior cloaca to sting 0.4–0.8 times in precloacal length (Table 1); dorsal surface rough with a row of enlarged denticles, flanked on each side by a short row of irregular mid-scapular blunt thorns; midline denticles extending from behind the head back into the tail to caudal sting.
Hypanus rubioi is distinguished from its two eastern Pacific sympatric species H. longus and H. dipterurus by having a long (29 to 32% in DW), pointed rostrum compared to 17 to 20% in H. longus, and a very long tail (2.4 to 3.1 times its disc length) compared to 2.4 in H. longus and 1.2 to 1.6 in H. dipterurus (Fig. 3). Hypanus rubioi shares with H. longus a small ventral caudal fin fold fitting 0.4 to 0.7 times the length of the disc and 0.55 to 0.62 times, respectively, while H. dipterurus has a larger fold where its length fits 0.33 times the length of the disc. Hypanus rubioi differs from H. dipterurus in the number of times the mouth width fits in the preoral length. While in the new species the mouth fits 3.1 to 3.7 times, in H. dipterurus it fits only 2.5 to 3 times. The size of the eye also allows separating the species. In H. rubioi the eye is smaller (1.7 to 3.4% of the disc width, while in H. longus it is 3.1 to 5.6%). The ratio between internostril width and pre-nasal length is smaller in H. longus (1.3–1.8) compared to values of 2.2 to 2.8 times in H. rubioi. Finally, the eye of H. rubioi fits 4 to 9 times in the interorbital distance, while in H. longus it fits 2 to 4 times and in H. dipterurus it fits 2.5 times.
Remarks
shark-references Species-ID=17557;
shark-references Species-ID=17557;
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