Carcharhinus borneensis

(BLEEKER, 1858)


Borneo shark
Classification: Elasmobranchii Carcharhiniformes Carcharhinidae

Reference of the original description
BLEEKER, P. (1858)
Twaalfde bijdrage tot de kennis der vischfauna van Borneo. Acta Societatis Regiae Scientiarum Indo–Neêrlandicae, 5 (7): 1–10

Image of the original description
No image in first description.

Synonyms / new combinations and misspellings
Carcharias borneensis, Carcharias (Prionodon) borneensis, Carcharinus borneensis

Types
Carcharhinus borneensis
Holotype: RMNH: 7386;


Description :


Citation: Carcharhinus borneensis (BLEEKER, 1858): In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 08/2020

Please send your images of "Carcharhinus borneensis" to info@shark-references.com

Lateral view and ventral view of head of a fresh adult specimen of Carcharhinus borneensis IPPS BO428 (adult male 574 mm TL). In: WHITE, W.T. & LAST, P.R. & LIM, A.P.K. (2010): Rediscovery of the rare and endangered Borneo Shark Carcharhinus borneensis (Bleeker, 1858) (Carcharhiniformes: Carcharhinidae). CSIRO Marine and Atmospheric Research Paper, 32: 17-28
Common names
spa Tiburón de Borneo, fra \(T\) Requin tigre houareau, fra \(T\) Requin-tigre houareau, eng Borneo shark

Short Description
Diagnosis after White et al. [9059]: A small species of Carcharhinus with the following combination of characters: a long and pointed snout; slender body and tail; a row of enlarged hyomandibular pores (5–12) alongside each mouth corner; upper anterior teeth finely serrated with a single narrow, oblique cusp; distal edge deeply notched and with several cusplets; lower anterior teeth with narrower, similarly oblique cusps; no lateral cusplets; total tooth row counts 23–26/23–25, or 46–50; second dorsal-fin origin well posterior of anal-fin origin, about opposite or just anterior to anal-fin midbase, second dorsal-fin origin to anal-fin origin 2.2–4.1% TL, 0.4–0.9 times second dorsal-fin base; interdorsal space 20.7–22.7% TL; pelvic fins small, anterior margins 4.4–5.8% TL and 35–42% of pectoral anterior margin; first dorsal fin triangular, with nearly straight posterior margin, free rear tip about opposite pelvic-fin origins, length 14.5–17.6% TL, 1.8–2.4 times height, inner margin 1.9–2.8 in base; second dorsal fin much smaller than first, slightly smaller than anal fin; length 7.5–10.2% TL, base 2.0–3.1 times height; height 21–29% of first dorsal fin height; anal fin height 1.1–1.6 times second dorsal height, base 1.1–1.5 times second dorsal-fin base; total vertebral counts 117–121, monospondylous precaudal counts 33–36, diplospondylous precaudal counts 21–26, diplospondylous caudal counts 56–60, precaudal counts 57–63; colour slate-grey dorsally, whitish ventrally with waterline clearly demarcated along head and body, no distinct black markings on fins, pectoral fins and lower caudal lobe with whitish margins

Distribution
Indo-West Pacific: Borneo and China. Possibly occurring in Java, Indonesia and the Philippines. Source: www.gbif.org

Human uses
fisheries: subsistence fisheries

Biology
Viviparous, placental [733]. Distinct pairing with embrace [17086].

Size / Weight / Age
70.0 cm TL (male/unsexed; [517])

Habitat
demersal; marine

Remarks
shark-references Species-ID=726;