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Not just Shark Pictures: Elasmodiver contains photos of sharks, skates, rays, and chimaera's from around the world. It began as a simple web based field guide to help divers find the best places to encounter different species of sharks and rays but it has slowly evolved into a much larger project containing information on all aspects of shark diving and photography. There are now more than a thousand shark pictures  and sections on shark evolution, biology, and conservation. There is a large library of reviewed shark books, a constantly outdated shark taxonomy page, a monster list of shark links, and deeper in the site there are numerous articles and stories about shark encounters. Elasmodiver is now so difficult to check for updates, that new information and pictures are listed on an Elasmodiver Updates Page that can be accessed here:

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ELASMODIVER EXPANDED

If you're looking for a broader range of marine life pictures the following links represent a new area that contains pictures on other marine organisms and on marine habitats. This expansion of Elasmodiver is in its first stages but will eventually include pages on everything from sea stars to nudibranches. Creating this portal will take time and for now it consists of a token offering of fish pictures. Please return regularly to enjoy the progress.

 

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ROUND STINGRAY

 

El Diente (dive site), Las Islas Catalinas, Pacific Coast of Costa Rica. 

Photograph copyright Andy Murch

Enlarged image     More Round stingray photographs

View all available Round Stingray Pictures in the SHARKIVE

Common Names: Round stingray.

Latin Name: Urobatis halleri.

Family: Urobatidae.

Identification: Circular disc, no dorsal fin, tail shorter than disc length, sting present on tail. Dorsum smooth (no tubercles). Colour variable, may be plain brown or pale base with covering pattern of small dark spots and underlying dark blotches. Ventrum pale.

Size: Maximum length 56cm.

Habitat: Intertidal to 90m on sand or mud sometimes around reefs.

Abundance:

Distribution: Northern California to Panama.

Behavior: Nocturnal. Lays motionless during the day. Digs for worms and crustaceans at night.

Reproduction: Ovoviviparous.

Observations:

Photographs: Santa Catalinas, Costa Rica.

Similar species: Cortez stingray. Similar but with conspicuous dark blotches on each side of disc.

Reaction to divers: Easily approached. moves away only when closely disturbed.

Diving logistics: I dove with these rays from a dive boat run by Agua Rica Dive Shop out of Tamarindo, Costa Rica. The dive sites around Las Islas Catalinas are also a good place to find schooling Cownose rays, Bulls-eye electric rays and the occasional reef whitetip shark . The dive shops in Playas del Coco (to the north) also run charters to these sites.

Other diving locations submitted by readers:

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