Nature Field Guide
Pacific Crown Conch
- Spanish name
- Cambute negro
- Scientific name
- Melongena patula
What Do Pico & Tati Think?
A heavy shell may carry a row of short shoulder spines.
Species overview
About the Pacific Crown Conch
The Pacific crown conch has a large, pear-like shell. Some shells have short shoulder spines, while others lack them. Variation is a reason to compare more than one feature before deciding on a name.
Explorer activity: Compare photographs of a young and an adult shell. Mark any differences in outline and shoulder shape. Do not assume every individual has the same spines.
Your discovery notes: Record the date, place and habitat, then add a sketch or photograph. If you cannot confirm the species, label it “unidentified shell” and keep your observations.
Identification
Key Features of the Pacific Crown Conch
Large pear-like shell with a low spire.
Short shoulder spines may be present or absent.
Broad opening and a short channel at its lower end.
Habitat & range
Coastal marine bottom habitat; confirm the exact local site with a guide.
Local observations
Recorded for Costa Rica’s Pacific coast; Tamarindo location unverified. This supports regional inclusion, not a confirmed Tamarindo Beach sighting.
When to observe
Tides and conditions affect visibility. Let an adult or local guide choose a safe observation time; this card does not promise a seasonal sighting.
Conservation & care
Observe and photograph shells where they are. Leave living animals, occupied shells and empty shells in place. Do not pry animals from rocks, dig in mangroves or put fingers into shell openings. Explore with an adult or guide, follow site rules and stay clear of surf and slippery rocks.
Observation activity
Compare photographs of a young and an adult shell. Mark any differences in outline and shoulder shape. Do not assume every individual has the same spines.
Explore by location
Central Pacific · Guanacaste · Puntarenas & the Gulf Islands · South Pacific