Pycnocraspedum rowleyensis Schwarzhans, Psomadakis & Nielsen 2025
Summary:
A relatively robust cusk eel with a moderately long tapering tail, a rounded snout, two preopercular spines and no fleshy flap on the rear margin of the preopercle.
Cite this page as:
Bray, D.J. 2025, Pycnocraspedum rowleyensis in Fishes of Australia, accessed 27 Jun 2025, https://fishesofaustralia.net.au/Home/species/4595
Pycnocraspedum rowleyensis Schwarzhans, Psomadakis & Nielsen 2025
More Info
|
Distribution |
Northwest Shelf, Western Australia. |
|
Features |
Dorsal fin 87; Anal fin 69; Pectoral fin 25; Pelvic fin 2; Caudal fin 10; Gill rakers (long rakers) 4; Pseudobranch filaments 4-5; Transverse scale rows above lateral line 17, above anal-fin origin 70; Dorsal-fin rays before first vertebra 2; Vertebrae 52, precaudal vertebrae 12. Body deep, depth at anus 18.9% SL; predorsal length 23% SL; head length 25.3% SL; orbit diameter 3.9% SL; upper jaw length 14.3% SL; interorbital width 7% SL; pelvic-fin base to anal-fin base 28.7% SL; preanal length 50.2% SL; prepelvic length 24.8% SL; pectoral-fin length 15% SL; pelvic-fin length 13.7% SL; broad expansion of lower corner of preopercle with two spines, concave section above spine 2 without fleshy flap on hind margin of preopercle. |
|
Size |
|
|
Colour |
Colour in life unknown. |
|
Feeding |
Thought to "primarily feed on soft-bodied invertebrates based on the morphology of the dentition, with all tooth-bearing elements being characterized by minute, granular teeth resembling sandpaper with no discernable rows or other pattern". |
|
Remarks |
|
|
Similar Species |
Differs from other species in the genus in having the dorsal-fin origin above the preopercle, no pseudobranchial filaments, short pectoral fins and pelvic fins that do not reach the anus. |
|
Etymology |
The species is named after the type locality: Rowley Shoals, Western Australia. |
|
Species Citation |
Pycnocraspedum rowleyensis Schwarzhans, Psomadakis & Nielsen 2025, Zootaxa 5636 (3): 464, Figs 3 (I-K), 5(I1, I2), 10(A, B). Type locality: Western Australia, approximately 80 km southwest of Rowley Shoals, 18°05'S, 118°10'E, 400 m. |
|
Author |
Bray, D.J. 2025 |
|
Resources |
Pycnocraspedum rowleyensis Schwarzhans, Psomadakis & Nielsen 2025
References
Schwarzhans, Psomadakis & Nielsen 2025. Revision of the bathydemersal fish genus Pycnocraspedum (Ophidiidae;Teleostei), with description of two new species. Zootaxa 5636 (3): 443-472 https://doi.org/10.11646/zootaxa.5636.3.2
Quick Facts
CAAB Code:37228036
Depth:400 m
Habitat:Bathydemersal
Max Size:23.5 cm SL
Native:Endemic
Species Maps
CAAB distribution map