Confirmation of the cookiecutter shark, Isistius brasiliensis, from the eastern North Pacific Ocean (Squaliformes: Dalatiidae)

Ebert, David A.; Pien, Catarina; Kamikawa, Daniel J.

doi:10.1017/s1755267215000962

Cited by 7 publications

(5 citation statements)

References 2 publications

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“…(2015): 876, 880 (pectoral fin anatomy) [ 285 ]; Dyldin (2015): 54 (listed, Russia) [ 286 ]; Ebert et al . (2015) (range extension, to eastern North Pacific) [ 287 ]; Stehmann & Kukuev (2015): 73 (references to I . plutodus ), 75, 77 (caudal fin, distribution) [ 34 ]; Moyer & Bemis (2016): 535 (teeth replacement) [ 288 ]; Nakaya et al .…”

Section: Resultsmentioning

confidence: 99%

Comparative morphology and systematics of the cookiecutter sharks, genus Isistius Gill (1864) (Chondrichthyes: Squaliformes: Dalatiidae)

Petean

Carvalho

2018

PLoS ONE

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The dalatiid genus Isistius Gill (1864) has three valid species currently recognized in the literature: Isistius brasiliensis Quoy & Gaimard (1824), I. plutodus Garrick & Springer (1964), and I. labialis Meng, Zhu & Li (1985). The most common species, I. brasiliensis, has a wide geographic distribution and is found in subtemperate and tropical seas circumglobally. A comparative analysis of specimens from different localities throughout its range, however, had never been undertaken. In the present paper, the morphological variation of this species along its entire distribution has been thoroughly analyzed, corroborating that it represents a single widespread species and that I. labialis is its junior synonym. The other congeneric species, I. plutodus, is known from only a few specimens and is also distributed worldwide. A detailed comparative analysis of available material of I. plutodus was conducted verifying its validity as a single widespread species. The present study analyzed in detail the external morphology (coloration, dentition, dermal denticles), internal morphology (skeleton, musculature), lateral-line canals, and morphometric and meristic characters of species of Isistius in order to better define the genus and its included valid species.

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Section: Resultsmentioning

confidence: 99%

Comparative morphology and systematics of the cookiecutter sharks, genus Isistius Gill (1864) (Chondrichthyes: Squaliformes: Dalatiidae)

Petean

Carvalho

2018

PLoS ONE

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“…2010; Ebert 2013; Ebert et al . 2015; Froese & Pauly 2022 and references therein; Gašparič & Hyžný 2015; Kiraly et al . 2003; McEachran & Branstetter 1984; McMillan et al .…”

Section: Discussionmentioning

confidence: 99%

Chondrichthyan (Holocephali, Squalomorphii and Batomorphii) remains from the Badenian of southern Hungary (Tekeres, Mecsek Mountains): the first deepwater cartilaginous fishes from the Middle Miocene of the Central Paratethys

Szabó

Kocsis

Tóth

et al. 2022

Papers in Palaeontology

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Middle Miocene (Badenian) chondrichthyan fossils collected from the Tekeres Schlieren Member of the Baden Formation at Tekeres (southern Hungary, Mecsek Mts) are described here. The chondrichthyan assemblage is exceptionally diverse and well-preserved, and consists of holocephalans, selachians and batomorphs. Nine taxa are reported for the first time from the Badenian of the Central Paratethys: Ischyodus sp., Hexanchus cf. nakamurai, Centrophorus sp., Isistius triangulus, Pristiophorus sp., Sphyrna integra, Raja cf. gentili, Dasyatis cf. pastinaca and Mobula fragilis. The fauna is characterized by many deepwater taxa, making it the first bathyal vertebrate assemblage of the Badenian Central Paratethys. However, typically shallow water, littoral forms are also present, which are worn

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“…It should be noted that for M. parini the radiograph of vertebrae would have been made with equipment in use between 1979 and 1984 (Dolganov 1984), and the resolution of minute terminal vertebrae may not have been optimal compared to contemporary CT scanning; the M. parini vertebral count may be a minimum count. Additionally, accurate vertebral counts for other dalatiids also can be affected by radiograph resolution (e.g., Hubbs et al 1967; Isistius plutodus diplospondylous vertebrae 48+, Stehmann & Kukuev 2014; Isistius brasiliensis precaudal vertebrae 18+, Ebert et al 2015; Table 1).…”

Section: Discussionmentioning

confidence: 99%

“…Dalatiid vertebral counts (vertebral count classifications grouped by precaudal and caudal centra;Springer and Garrick 1964;Ebert et al 2015).…”

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confidence: 99%

A new Western North Atlantic Ocean kitefin shark (Squaliformes: Dalatiidae) from the Gulf of Mexico

Grace

Doosey

Denton

et al. 2019

Zootaxa

613

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A new species of kitefin shark (Squaliformes; Dalatiidae) is described from the Gulf of Mexico (Western North Atlantic Ocean) based on five diagnostic features not seen on the only other known Mollisquama specimen, the holotype of Mollisquama parini Dolganov which was captured in the Eastern South Pacific Ocean. The new species, Mollisquama mississippiensis sp. nov., is distinguished from its congener by a putative pit organ located ventrally just posterior of the lower jaw margin center, photophores irregularly distributed along many areas of the body, 16 distinct ventral-abdominal photophore aggregations, and two differences associated with the dentition. Other potential distinguishing features are 10 fewer vertebrae than Mollisquama parini and six morphometric proportional differences that exceeded +/- 20% from the holotype.

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Confirmation of the cookiecutter shark, Isistius brasiliensis, from the eastern North Pacific Ocean (Squaliformes: Dalatiidae)

Abstract: The cookiecutter shark,Isistius brasiliensis, is confirmed for the first time from the eastern North Pacific Ocean. The shark, a female 432 mm in total length, was caught in a sablefish pot at a depth of 1132 m off San Nicolas Island, California, USA (32°59′05″N 120°25′99″W).

Cited by 7 publications

References 2 publications

Comparative morphology and systematics of the cookiecutter sharks, genus Isistius Gill (1864) (Chondrichthyes: Squaliformes: Dalatiidae)

Comparative morphology and systematics of the cookiecutter sharks, genus Isistius Gill (1864) (Chondrichthyes: Squaliformes: Dalatiidae)

Chondrichthyan (Holocephali, Squalomorphii and Batomorphii) remains from the Badenian of southern Hungary (Tekeres, Mecsek Mountains): the first deepwater cartilaginous fishes from the Middle Miocene of the Central Paratethys

A new Western North Atlantic Ocean kitefin shark (Squaliformes: Dalatiidae) from the Gulf of Mexico

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