order: Myliobatiformes 

Family: Urolophidae (stingarees)

Species: 2

NEW IRELAND STINGAREE

Spinilophus armatus (Valenciennes, 1841)

IUCN Status

IUCN DD logo.png

BIOLOGY

Maximum size:   

        
Maturity size:   

Birth size:                      
Litter size:                    
Reproductive mode:     

Unknown; only known from 17 cm TL juvenile male

Unknown

Unknown
Unknown

Presumably viviparous, histotrophy

KEY FEATURES

  • Tail with a very long and slender caudal fin (not evident in image)

  • Disc broad, much wider than long

  • No dorsal fin on tail

  • Upper disc with some denticles, an enlarged thorn centrally and
    about 4 rows of sharp spinules on posterior half of disc

  • Snout fleshy; tip extended

  • Eyes very small

SANDYBACK STINGAREE

Urolophus bucculentus (Macleay, 1884)

IUCN Status

IUCN VU logo.png

BIOLOGY

Maximum size:            
Maturity size:             

                                      
Birth size:                      
Litter size:                    
Reproductive mode:     

89 cm TL

Females at ~50 cm TL

Males at ~40 cm TL
~17 cm TL
1–5 pups

Viviparous, with histotrophy

KEY FEATURES

  • Tail with a short and broad caudal fin (missing in image)

  • Disc broad, much wider than long

  • A dorsal fin present on tail (visible in image)

  • Upper disc smooth, without denticles

  • Snout fleshy; tip only weakly extended

  • Upper disc plain yellowish brown, sometimes with complex
    pattern of yellowish rings and reticulations

Sharks and rays of

papua new guinea

© 2019 Sharks and Rays of PNG 

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