Taxonomy of Finfish (1+2)

Pastinachus sephen (Forsskal,1775)

Phylum: Chordata

Class: Chondrichthyes

Subclass : Elasmobranchii

Order Myliobatiformes

Family : Dasyatidae stingrays

Genera : Pastinachus

Species : P. sephen

Pastinachus

• Disc more or less quadrangular; Skin fold present on under surface of tail (may be low) and sometimes on dorsal surface behind
• sting skin fold terminating before tip of undamaged tail(sometimes present at tip as a barely detectable ridge)
• base of tail relatively broad, distinctly depressed

Pastinachus sephen (Forsskål,1775)

• Ventral skin fold deep, its height more than twice height of tail above deepest portion
• distance from cloaca to stinging spine exceeding 1/2 of disc width