Hortle's Whipray, Pateobatis hortlei (Last, Manjaji-Matsumoto & Kailola 2006)


Summary:
A uniformly yellowish, brownish, or greyish whipray with a canary yellow underside, and blackish pigment around the oronasal region and gill slits.

Cite this page as:
Bray, D.J. 2019, Pateobatis hortlei in Fishes of Australia, accessed 04 Dec 2020, http://136.154.202.208/home/species/5512

Hortle's Whipray, Pateobatis hortlei (Last, Manjaji-Matsumoto & Kailola 2006)

More Info


Distribution

Kimberley Region, Western Australia to the Northern Territory. Elsewhere the species occurs in Papua New Guinea and West Papua, Indonesia.
Commonly inhabits shallow intertidal mud flats and estuaries in depths to several metres.

Features

Disc subcircular, very angular anteriorly, length 1.1 times DW; pectoral-fin apices broadly rounded; snout extremely elongate, 11-18 times orbit diameter, 96-99° angle; snout to maximum disc width 52-58% of DW; orbit very small, diameter 0.4-0.5 of spiracle length, 3.8-6.3 times in interorbital distance; mouth not greatly protrusible; prepelvic process not expanded; 1-3 enlarged, flattened, pearl-shaped mid-scapular denticles; denticles of main band in two main sizes in adults, crowns plate-like to heart-shaped; pectoral fin radials 135-143; pelvic-fin radials 22-28; total vertebral centra 99-108

Feeding

Feeds on crustaceans, molluscs and small fishes. 

Biology

Viviparous (egg layer), with histotrophy. 

Fisheries

Caught regularly, but usually avoided, by beach seine fisheries operating in intertidal habitats in New Guinea. Utilized for its meat, and possibly also for its skin and cartilage.

Species Citation

Himantura hortlei Last, Manjaji-Matsumoto & Kailola 2006, Zootaxa 1239: 22, figs. 1-7. Type locality: Minajerwi River estuary, Irian Jaya, 4°56'S, 137°03'E, depth 7 m.

Author

Bray, D.J. 2019

Resources

Atlas of Living Australia

Hortle's Whipray, Pateobatis hortlei (Last, Manjaji-Matsumoto & Kailola 2006)

References


Last, P.R., Manjaji-Matsumoto, B.M. & Kailola, P.J. 2006. Himantura hortlei n. sp., a new species of whipray (Myliobatiformes: Dasyatidae) from Irian Jaya, Indonesia. Zootaxa 1239: 19-34

Last, P.R., Naylor, G.J.P. & Manjaji-Matsumoto, B.M. 2016. A revised classification of the family Dasyatidae (Chondrichthyes: Myliobatiformes) based on new morphological and molecular insights. Zootaxa 4139(3): 345-368

Last, P.R., White, W.T. & Naylor, G. 2016. Three new stingrays (Myliobatiformes: Dasyatidae) from the Indo–West Pacific. Zootaxa 4147(4): 377–402

White, W.T., Baje, L., Sabub, B., Appleyard, S.A., Pogonoski, J.J. & Mana, R.R. 2017. Sharks and Rays of Papua New Guinea. Australian Centre for International Agricultural Research Monograph Series 189: 1-327

White, W.T., Manjaji Matsumoto, B.M. & Fahmi 2016. Pateobatis hortlei. The IUCN Red List of Threatened Species 2016: e.T161598A104225574. http://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T161598A104225574.en. Downloaded on 18 September 2019.

Quick Facts


CAAB Code:37035033

Conservation:IUCN Vulnerable

Depth:2-7 m

Habitat:Estuaries, mud flats

Max Size:71 cm DW

Species Maps

CAAB distribution map