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Nelson, J.S., 2006

Myliobatiformes stingrays

Elasmobranchii

Torpediniformes  M years

 | 

Marin

Eau douce

Saumâtre

Gill openings ventral; anterior edge of the greatly enlarged pectoral fin attached to side of head, anterior to the gill openings; anal fin absent; eyes and spiracles on dorsal surface; anterior vertebrae fused to form a synarcual; suprascapulae of pectoral girdles joined dorsally over vertebral column and articulating with column of synarcual or fused with synarcual; nictitating membrane absent, cornea attached directly to skin around the eyes; body generally strongly depressed; jaws protrusible in most; teeth pavementlike; in most, water for breathing taken in chiefly through the spiracle rather than the mouth (except for those living off the bottom); most give birth to live young (some have eggs encased in a horny capsule); the snout may function as an electroreceptive organ (as may be true for all elasmobranchs).

Greek eulanein, elasmos = metal beaten out + Greek brangchia = gills. Ref. 45335.

Greek, mylo = mill + Greek, + Greek, batis,-idos = a ray (Raja sp.) (Ref. 45335). forma = shape (Ref. 45335).

( n = 10 ) -
Dasyatidae Gymnuridae Hexatrygonidae Myliobatidae Plesiobatidae Potamotrygonidae Urolophidae Urotrygonidae

Ref.
[ e.g. 9948]                       

Glossary
                    [ e.g. cephalopods]