Himantura australis

LAST, WHITE & NAYLOR, 2016


Himantura australis
Classification: Elasmobranchii Myliobatiformes Dasyatidae

Reference of the original description
LAST, P.R. & WHITE, W.T. & NAYLOR, G.J.P. (2016)
Three new stingrays (Myliobatiformes: Dasyatidae) from the Indo–West Pacific. Zootaxa, 4147 (4): 377–402


Images of types

Description :


Citation: Himantura australis LAST, WHITE & NAYLOR, 2016: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 02/2019

Please send your images of "Himantura australis" to info@shark-references.com

Holotype of Himantura australis sp. nov., juvenile male 420 mm DW (CSIRO H 7798-04), from Papua New Guinea © LAST & SÉRET, 2016
Common names
eng Australian Whipray

Short Description
Original diagnosis after LAST, WHITE & NAYLOR, 2016 [24346]: A species of Himantura distinguished by a combination of the following features: disc weakly rhomboidal; preorbital snout moderately short (length 19–22% DW), rather broad, angle 117–127°, with a distinct apical lobe; lateral apices narrowly rounded; orbits moderately large, often strongly protruding (particularly in young); 1–2, mostly heart-shaped suprascapular denticles (not preceded before and after by a row of smaller primary denticles); secondary denticle band developed before birth; dorsal surface of juveniles (smaller than 370 mm DW) dark spotted or with spots and weak reticulations, subadults and adults (exceeding 390 mm DW) more strongly reticulated; dorsal tail of juveniles with 3 rows of spots before caudal sting, faint dark saddles beyond sting (tail lacking alternating black and white bands); tail uniformly dark ventrally; pectoral-fin radials 146–152; vertebral centra (excluding synarcual) 123; including synarcual 124.

Distribution
off Papua New Guinea and northern Australia, from Shark Bay (off Western Australia) to Brisbane (off Queensland) [24346]

Size / Weight / Age
late-term embryo 283 mm DW; TL max (female): 1400 mm DW [24346]

Habitat
demersal; marine; depth range - 45 m [24346]

Dentition
Teeth in a juvenile paratype (CSIRO H 4542-06) small, subequal in size in upper and lower jaws; narrowly rhombic with 1–2 low, transverse ridges on crown, ridges separated by prominent groove; ~59 vertical rows in upper jaw [24346]

Remarks
shark-references Species-ID=14669;

Parasites (arranged by Jürgen Pollerspöck)
Cestoda
  • Acanthobothrium cannoni CAMPBELL & BEVERIDGE, 2002 [26821]
  • Rhinebothrium nickoli COLEMAN, BEVERIDGE & CAMPBELL, 2018 [26943]
  • Rhinebothrium vandiemeni COLEMAN, BEVERIDGE & CAMPBELL, 2018 [26943]
  • Stillabothrium jeanfortiae FORTI, APRILL & REYDA, 2016 [24898]