Rhizoprionodon acutus (Rüppell, 1837),

White, William T. & Ko’Ou, Alfred, 2018, An annotated checklist of the chondrichthyans of Papua New Guinea, Zootaxa 4411 (1), pp. 1-82: 40

publication ID

https://doi.org/10.11646/zootaxa.4411.1

publication LSID

lsid:zoobank.org:pub:255EE06E-3171-41F3-BB3D-E7D29537A292

persistent identifier

http://treatment.plazi.org/id/735C87F1-8A71-FF89-9BF6-FD235ED48EA3

treatment provided by

Plazi

scientific name

Rhizoprionodon acutus (Rüppell, 1837)
status

 

Rhizoprionodon acutus (Rüppell, 1837) 

Milk Shark

Carcharias acutus Rüppell, 1837: 65  , pl. 18 (fig. 4). Lectotype: SMF 2783 (stuffed). Type locality: Jeddah, Saudi Arabia, Red Sea.

Local synonymy: Rhizoprionodon  acutus— Filewood, 1973: 4 (PNG); Kailola, 1987: 18 (Darapap; Gogol River mouth; Ramu River mouth; Rabual; Orangerie Bay; Port Moresby; Yule Island); Fricke et al., 2014: 12 (Madang); White et al., 2018: 174, figs (PNG).

PNG voucher material: (24 spec.) AMS I 16667View Materials -003, female 605 mm TL, AMS I 16667View Materials -006, female 757 mm TL, Bostrem Bay , Madang Harbour, 5°4’58” S, 145°48’4” E, 27 Jul. 1969GoogleMaps  ; CSIRO H 7800-01, juvenile male 340 mm TL, Freshwater Bay , Gulf of Papua, 8°6’57.6” S, 145°52’1.2” E, 14–17 m depth, 8 Jun. 2014GoogleMaps  ; CSIRO H 7804-01, female 350 mm TL, Freshwater Bay , Gulf of Papua, 8°6’45.6” S, 145°50’49.8” E, 21–22 m depth, 13 Jun. 2014GoogleMaps  ; CSIRO H 7812-01, female 360 mm TL, Freshwater Bay , Gulf of Papua, 8°5’24.6” S, 145°51’7.2” E, 13 m depth, 22 Jun. 2014GoogleMaps  ; CSIRO H 7824-01, adult male 770 mm TL, east of Fly River mouth, Gulf of Papua, 8°39’ S, 144°6’ E, 11–15 m depth, 12 Dec. 2014GoogleMaps  ; CSIRO H 7829-01, juvenile male 360 mm TL, south of Deception Bay , Gulf of Papua, 8°1’53” S, 144°38’48” E, 20–22 m depth, 7 Dec. 2014GoogleMaps  ; CSIRO H 7835-02, juvenile male 430 mm TL, south of Deception Bay , Gulf of Papua, 8°2’16” S, 144°38’26” E, 22–23 m depth, 15 Dec. 2014GoogleMaps  ; CSIRO H 8007-01, female 420 mm TL, west of Avirara , Gulf of Papua, 8°17’34.08” S, 146°10’34.92” E, 10–12 m depth, 25 Aug. 2015GoogleMaps  ; CSIRO H 8163-02 (chondrocranium and dried jaws), adult male 790 mm TL, south of Kerema , Gulf of Papua, 8°3’45” S, 145°46’49” E, 13–18 m depth, 9 Sep. 2015GoogleMaps  ; CSIRO H 8162-02 (dried jaws), adult male 790 mm TL, south of Kerema , Gulf of Papua, 8°4’26” S, 145°40’55” E, 17–20 m depth, 7 Sep. 2015GoogleMaps  ; CSIRO H 8169-01 (dried jaws), adult male 770 mm TL, Freshwater Bay , Gulf of Papua, 8°8’35” S, 145°56’26” E, 18–26 m depth, 9 Apr. 2015GoogleMaps  ; CSIRO H 8164-01 (dried jaws), adult male 790 mm TL, south of Deception Bay , Gulf of Papua, 8°3’53” S, 144°41’8” E, 21–31 m depth, 7 Dec. 2014GoogleMaps  ; KFRS E.016A (dried jaws), adult female, KFRS E.016B (dried jaws), adult female, Hall Sound , Central Province, 11/ 12 Nov. 1964  ; KFRS E.279B, juvenile male 305 mm TL, north of Yule Island , Central Province, Apr. 1966  ; KFRS E.668, juvenile male 340 mm TL, Freshwater Bay , Gulf of Papua, 8°8’ S, 146°1’ E, 14–15 m depth, 29 Nov. 2014GoogleMaps  ; KFRS E.670, adult male 760 mm TL, east of Fly River mouth, Gulf of Papua, 8°40’ S, 144°7’ E, 13–20 m depth, 2 Dec. 2014GoogleMaps  ; KFRS E.700, juvenile male 360 mm TL, Freshwater Bay , Gulf of Papua, 8°5’45” S, 145°52’36” E, 14–16 m depth, 8 Jun. 2014GoogleMaps  ; KFRS E.714, juvenile male 320 mm TL, Freshwater Bay , Gulf of Papua, 8°5’38.4 S, 145°50’44.4” E, 14–15 m depth, 16 Jun. 2014GoogleMaps  ; KFRS E.723, juvenile male 320 mm TL, Freshwater Bay , Gulf of Papua, 8°6’57.6” S, 145°52’1.2” E, 14–17 m depth, 8 Jun. 2014GoogleMaps  ; KFRS E.730, juvenile male 370 mm TL, KFRS E.731, juvenile male 390 mm TL, Freshwater Bay , Gulf of Papua, 8°6’45.6” S, 145°50’49.8” E, 21–22 m depth, 13 Jun. 2014GoogleMaps  ; KFRS E.766, female 430 mm TL, south of Deception Bay , Gulf of Papua, 8°1’53” S, 144°38’48” E, 20–22 m depth, 7 Dec. 2014GoogleMaps  .

Remarks: First recorded from PNG by Filewood (1973). Sometimes confused with Carcharhinus macloti  . Common in the bycatch of the Gulf of Papua prawn trawl fishery and in coastal fisheries in PNG.

PNG

Division of Primary Industry

CSIRO

Australian National Fish Collection

KFRS

Kanudi Fisheries Research Station

Kingdom

Animalia

Phylum

Chordata

Class

Chondrichthyes

Order

Carcharhiniformes

Family

Carcharhinidae

Genus

Rhizoprionodon

Loc

Rhizoprionodon acutus (Rüppell, 1837)

White, William T. & Ko’Ou, Alfred 2018
2018
Loc

Rhizoprionodon

Whitley 1929
1929
Loc

Carcharias acutus Rüppell, 1837: 65

Ruppell 1837: 65
1837