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Species: Rhizoprionodon terraenovae, Atlantic sharpnose shark

All Families:   All Genera:   All Species:

white spots
D1: origin over inner pectoral margin, center of b
D2 origin between center of base & rear insertion of A
teeth strongly oblique, rear notch, smooth/finely serrated
pressed-down pectoral reaches under center D1
long ridges before A base

Rhizoprionodon terraenovae (Richardson, 1836)

Atlantic sharpnose shark

Body slender; eyes large, nictitating lower eyelids present; snout long, depressed; labial furrows well developed, upper fold about equal to eye diameter, ending well behind eye; five gill slits, last two over pectoral; teeth on both jaws narrowly triangular, strongly oblique, notched at rear, smooth to finely serrated tips; first dorsal fin moderate in height, origin just in front of pectoral fin rear edge, center of its base slightly nearer rear axil of pectoral than origin of pelvic fin; second dorsal fin much smaller than first, very low, origin over or just behind midpoint of anal fin; pectoral fin reaches under or behind center of dorsal fin base when pressed against body; rudimentary ridge between dorsals; anal fin with slightly concave rear margin, long ridge in front of fin on each side; no keels on tail base, but notches above and below.

Grey to greyish brown above, larger specimens with small white spots on top, white below, pectoral fins with white rear edges; dorsal fins with dark tips.

Size: 108 cm.

Habitat: Inshore waters in surf zones off sand beaches, enclosed bays, estuaries and river mouths; salt to brackish water.

Depth: 0-280 m, usually < 10 m.

Canada to Honduras.


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Salinity
  • Brackish
  • Marine
Inshore/Offshore
  • Inshore
  • Inshore Only
Water Column Position
  • Near Bottom
  • Bottom
  • Bottom + water column
Habitat
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Estuary
  • Water column
  • Mud
  • Sand & gravel
  • Beach
FishBase Habitat
  • Demersal
Feeding Group
  • Data
  • Carnivore
Diet
  • Data
  • Bony fishes
  • Mobile benthic gastropods/bivalves
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic worms
Egg Type
  • Data
  • Live birth
  • No pelagic larva
Global Endemism
  • West Atlantic Endemic
  • Greater Caribbean non-endemic
Regional Endemism
  • Island (s)
  • Continental primarily
  • Continent
  • Extends North of GC
  • Continent + Island (s)
  • GC non-endemic
Residency
  • Resident
Climate Zone
  • Temperate (>35N)
  • Tropical (10-23N, Nicaragua / Cuba)
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
IUCN Red List
  • Least concern
  • Listed
CITES
  • Not listed
Length Max (cm)
  • 108
Depth Range Min (m)
  • 0
Depth Range Max (m)
  • 280