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Diagnostic Description

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This small species is characterized by the following characters: a slender body and tail; no interdorsal ridge; in dorsal view head parabolic and is relatively wide, interorbital space 11.2-12.0% TL; eyes relatively large, its length 2.4-2.9% TL, 10.0-15.1 times in head length; row of enlarged hyomandibular pores alongside each mouth corner absent; upper anterior teeth broadly triangular and serrated, with large and coarse (non-lobate) serrations basally; lower anterior teeth with narrower, mostly straight cusps; the cusps of upper and lower anterolateral teeth with apical margin slightly recurved; lateral cusplets absent; total tooth row counts 27-31/26-29; posterior edge of mandibular plate with an elongate and crescentic indentation; second dorsal-fin origin well posterior of anal-fin origin, about opposite anal-fin midbase, while second dorsal-fin origin to anal-fin origin 1.3-2.5% TL, 0.3-0.6 times second dorsal-fin base; first dorsal-fin triangular, non-falcate, origin about opposite first third of pectoral-fin inner margin length, free rear tip just anterior to pelvic-fin origins, length 1.7-1.9 times height, inner margin 1.9-2.5 in base; second dorsal fin is much smaller than first, slightly smaller than anal fin, base 1.4-2.0 times height, height 22-31% of first dorsal-fin height; anal fin height 1.2-1.5 times second dorsal height, base 1.1-1.2 times second dorsal-fin base; total vertebral counts 117-120, monospondylous precaudal 36-40, diplospondylous precaudal 18-19, diplospondylous caudal 56-66, precaudal 54-58; absence of distinct black markings on fins (Ref. 119369).
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Recorder
Estelita Emily Capuli
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Morphology

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Vertebrae: 117 - 120
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Biology

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Maximum length (43.3 cm TL) is that of a juvenile female; size at birth likely close to 34.0 cm TL, since late-term embryo was fully developed and a 37.0 cm TL juvenile had a faint umbilical sca (Ref. 119369).
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Carcharhinus

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Carcharhinus is the type genus of the family Carcharhinidae, the requiem sharks. One of 12 genera in its family, it contains over half of the species therein. It contains 35 extant and eight extinct species to date, with likely more species yet to be described.[3]

Species

Extant

T Type species

Fossil

See also

References

  1. ^ Carrier, J.C.; J.A. Musick & M.R. Heithaus (2004). Biology of Sharks and Their Relatives. CRC Press. p. 52. ISBN 0-8493-1514-X.
  2. ^ a b Cicimurri & Knight, 2009
  3. ^ Froese, Rainer and Pauly, Daniel, eds. (2011). Species of Carcharhinus in FishBase. February 2011 version.
  4. ^ Harris et al., 2019
  5. ^ a b Carcharhinus egertoni at Fossilworks.org
  6. ^ a b c De Aráujo Távora et al., 2010
  7. ^ a b Carcharhinus priscus at Fossilworks.org
  8. ^ Carrillo Briceño et al., 2015
  9. ^ Aguilera & De Aguilera, 2001
  10. ^ C. ackermani at Fossilworks.org
  11. ^ C. gibbesi at Fossilworks.org
  12. ^ a b Adnet et al., 2007
  13. ^ C. balochenisis at Fossilworks.org
  14. ^ C. perseus at Fossilworks.org
  15. ^ C. nigeriensis at Fossilworks.org
  16. ^ Halstead & Middleton, 1974

Bibliography

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Carcharhinus: Brief Summary

provided by wikipedia EN

Carcharhinus is the type genus of the family Carcharhinidae, the requiem sharks. One of 12 genera in its family, it contains over half of the species therein. It contains 35 extant and eight extinct species to date, with likely more species yet to be described.

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