Tumbes Round Ray

Tumbes Round Ray

Urobatis tumbesensis

40–50% · Likely
overall probability at Machalilla National Park
13 Verified records at Machalilla National Park
August Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The Tumbes round stingray (Urobatis tumbesensis) is a little-known species of round ray, family Urolophidae, known only from two immature male specimens collected from estuarine waters at depths of 1–2 m, and a third specimen collected in 2006 near mangroves. Its range appears to be limited to coastal waters off Tumbes in northern Peru, where it is found partially buried in sand or mud. The larger of the original two specimens measured 40.4 cm long and the smaller 15.7 cm. Like other round rays, the Tumbes round stingray has a rounded pectoral fin disc, slightly wider than it is long. The tail is stout, bearing a serrated stinging spine, and terminates in a rounded caudal fin. The pelvic fins have abruptly rounded tips. Wikipedia →

40–50% of wildlife watchers report a Tumbes Round Ray sighting in Machalilla National Park, based on 13 days of visitor records from GBIF citizen-science data.

📅 Monthly Probability

70–80
Jan
40–50
Feb
40–50
Mar
40–50
Apr
30–40
May
40–50
Jun
60–70
Jul
90–100
Aug
80–90
Sep
40–50
Oct
60–70
Nov
80–90
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Machalilla National Park 🇪🇨 Ecuador
40–50%

More parks will be added in future updates.

Quick answers

What are the chances of seeing a Tumbes Round Ray in Machalilla National Park?

About 48% of wildlife watchers report a Tumbes Round Ray sighting in Machalilla National Park, based on 13 days of visitor records from GBIF citizen-science data.

When is the best time to see Tumbes Round Ray in Machalilla National Park?

August has the highest sighting rate for Tumbes Round Ray in Machalilla National Park in our monthly data.

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