Hemitriakis Herre, 1923

Ebert, David A., White, William T., Ho, Hsuan-Ching, Last, Peter R., Nakaya, Kazuhiro, Séret, Bernard, Straube, Nicolas, Naylor, Gavin J. P. & De Carvalho, Marcelo R., 2013, An annotated checklist of the chondrichthyans of Taiwan, Zootaxa 3752 (1), pp. 279-386 : 323-324

publication ID

https://doi.org/ 10.11646/zootaxa.3752.1.17

publication LSID

lsid:zoobank.org:pub:A85F0F2E-83A5-4273-8C8E-528ACE50B964

persistent identifier

https://treatment.plazi.org/id/3E2987DC-CB25-FFF5-FF64-00F4FDFD718B

treatment provided by

Felipe

scientific name

Hemitriakis Herre, 1923
status

 

Genus Hemitriakis Herre, 1923 View in CoL View at ENA

Tope Sharks / aeǿûắé

Hemitriakis Herre, 1923: 70 View in CoL . Type species: Hemitriakis leucoperiptera Herre, 1923 View in CoL , by original designation.

Hemitriakis complicofasciata Takahashi & Nakaya, 2004 View in CoL

Ocellate Topeshark / Ṙù‡ǿûắ

Hemitriakis complicofasciata Takahashi & Nakaya, 2004: 248 View in CoL , figs 1–6, 7a, 8a, 10a. Holotype: HUMZ 165226 View Materials , male 796 mm TL, 24°40'N – 25°30'N, 125°50'E – 126°40'E, Okinawa Prefecture, Japan, 14 Aug 1999.

Local synonymy: Hemitriakis complicofasciata: Takahashi & Nakaya, 2004: 248 View in CoL .

Taiwan voucher material: NSYU uncat. embryo, male, 224mm TL, Dong-gang, Mar 1996 ( Takahashi & Nakaya, 2004) .

Remarks: Very similar in appearance to H. japanica , but differs in having embryos with a distinct complicated pattern of line and rings, more precaudal vertebrae, and a well developed (vs. rudimentary) nasal flap. Two additional specimens were sent to the Fishery Institute at Cheng-gong on 27 Apr 2012, the photos were examined by one of us ( HCH).

Conservation status: Data Deficient.

Hemitriakis japanica ( Müller & Henle, 1839) View in CoL

Japanese Topeshark / H†‡ǿûắ

Galeus japanicus Müller & Henle, 1839: 58 , pl. 22. Holotype: RMNH (dry)?

Local synonymy: Galeorhinus japanicus : Jordan & Evermann, 1902: 318; Fowler, 1941: 192; Chen, 1963, fig. 25 (THUP 1808); Yang, 1981: 2, fig. 1. Galeus japonicus : Jordan & Richardson, 1909: 162. Eugaleus japonicus: Nakamura, 1936: 35 , pl. 15, fig. 2. Galeorhinus japonicus: Matsubara, 1955: 119 View in CoL ; Chen, 1948: 33; Chen, 1956: 19; Teng, 1962: 110, fig. 29.; Yang & Chen, 1971: 1, fig. 1. Hemitriakis japanica: Compagno, 1970: 65 View in CoL ; Compagno & Stevens, 1993: 197 (44 spec.); Shen, 1984a: 62, fig.; Shao et al., 1993: 133; Chen & Joung, 1993: 57, pl. 6 (fig. 5); Chen, 2004: 21; Takahashi & Nakaya, 2004: 254 (24 spec.); Shao et al., 2008: 236; White et al., 2009: 41; Shen & Wu, 2011: 66, fig.

Taiwan voucher material: (17 spec.) CSIRO H 6294-30 View Materials , female, 775 mm TL, Da-xi, 23 May 2005 ; CAS uncatalogued (TAI-170), juvenile male 569 mm TL, UF 159316, juvenile male 414 mm TL, Da-xi, 24 May 2005 ; NMMB-P 3227 , Fu-gui-jiao, Taipei, 1 Jan. 2000 ; NMMB-P 4700 , Penghu, 1 Aug 1957 ; NMMB-P 15128 , Taichong , 20 Apr 1962 ; NMMB-P 6448 , Taichong , 8 May 1962 ; NMMB-P 6491 , Taichong , 16 Dec 1962 ; NMMB- P 6492, Taichong , 8 May 1961 ; NMMB-P 15800 , 16 Feb 2011 ; NMMB-P 15851 , NMMB-P 15854 , 3 Mar 2011 ; AMNH 258161 View Materials (tissue accession GN9913 ), female 455 mm TL , CSIRO H 7394-20 View Materials (tissue accession GN9914 ), juvenile male 590 mm TL , HUMZ 213815 View Materials (tissue accession GN9912 ), female 873 mm TL, Da-xi, 13 Mar 2012 ; MNHN 2013-0510 View Materials (tissue accession GN10040 ), female 470 mm TL, Da-xi, 14 Mar 2012 ; CAS 236062 View Materials (tissue accession GN10062 ), female 707 mm TL, Nan-fang-ao, 14 Mar 2012 .

Remarks: One of the most abundant sharks in coastal fisheries around Taiwan and an important food fish. Postnatal specimens superficially similar to H. complicofasciata thus some early records could possibly be of the latter species.

Conservation status: Least Concern.

NSYU

National Sun Yat-sen University

HCH

Lewis-Clark State College

CSIRO

Australian National Fish Collection

CAS

California Academy of Sciences

UF

Florida Museum of Natural History- Zoology, Paleontology and Paleobotany

Kingdom

Animalia

Phylum

Chordata

Class

Elasmobranchii

Order

Carcharhiniformes

Family

Triakidae

Loc

Hemitriakis Herre, 1923

Ebert, David A., White, William T., Ho, Hsuan-Ching, Last, Peter R., Nakaya, Kazuhiro, Séret, Bernard, Straube, Nicolas, Naylor, Gavin J. P. & De Carvalho, Marcelo R. 2013
2013
Loc

Hemitriakis complicofasciata Takahashi & Nakaya, 2004: 248

Takahashi, M. & Nakaya, K. 2004: 248
2004
Loc

Hemitriakis

Herre, A. W. C. T. 1923: 70
1923
Loc

Galeus japanicus Müller & Henle, 1839: 58

Muller, J. & Henle, F. G. J. 1839: 58
1839
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