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Interrelationships of the Gempylid Fishes (Teleostei, Scombroidei).

Record Type:	Electronic resources : Monograph/item
Title/Author:	Interrelationships of the Gempylid Fishes (Teleostei, Scombroidei)./
Author:	Russo, Joseph Leonard.
Description:	1 online resource (380 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 44-07, Section: B.
Contained By:	Dissertations Abstracts International44-07B.
Subject:	Zoology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8320053click for full text (PQDT)
ISBN:	9798661756459

Interrelationships of the Gempylid Fishes (Teleostei, Scombroidei).
Russo, Joseph Leonard.

Interrelationships of the Gempylid Fishes (Teleostei, Scombroidei). - 1 online resource (380 pages)

Source: Dissertations Abstracts International, Volume: 44-07, Section: B.

Thesis (Ph.D.)--The George Washington University, 1983.

Includes bibliographical references

The Gempylidae, including an undescribed genus and species, is composed of 16 species in 15 genera. Osteological data are collected from all, and reported for the described genera for each of eight functional bone units: (1) neurocranium, (2) infraorbitals, (3) suspensorium and jaw apparatus, (4) hyoid apparatus, (5) opercular apparatus, (6) branchial apparatus, (7) pectoral girdle, and (8) caudal complex. Differences in 85 characters are evaluated as being either primitive or specialized by ontogenetic analysis or by comparison with an outgroup composed of the perciform genera: Pomatomus, Scombrops, and Scombrolabrax. Sources of error are discussed for character analysis utilizing monophyletic outgroups. It is determined that use of a non-monophyletic outgroup minimizes the probability of Type I errors. Shared specialized characters are used to construct a most parsimonicus cladogram. This cladogram resolves all 14 possible sistergroup relationships among the 15 genera. Thirty specialized characters are non-homoplastic and are hypothesized to have evolved only once within the Gempylidae. The gempylids are divided into six monophyletic groups. The Lepidocybium, Ruvettus, and Thyrsites groups are monotypic. The Epinnula group is composed of Epinnula, Neoepinnula, Thyrsitops, and the undescribed genus. The Nealotus group is composed of Nealotus, Promethichthys, and Rexea. The Gempylus group is composed of Gempylus, Thyrsitoides, Nesiarchus, Diplospinus, and Paradiplospinus.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798661756459Subjects--Topical Terms:

518878
Zoology.
Index Terms--Genre/Form:

542853
Electronic books.

Interrelationships of the Gempylid Fishes (Teleostei, Scombroidei).
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100 1 $a Russo, Joseph Leonard. $3 3700956
245 1 0 $a Interrelationships of the Gempylid Fishes (Teleostei, Scombroidei).
264 0 $c 1983
300 $a 1 online resource (380 pages)
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500 $a Source: Dissertations Abstracts International, Volume: 44-07, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
502 $a Thesis (Ph.D.)--The George Washington University, 1983.
504 $a Includes bibliographical references
520 $a The Gempylidae, including an undescribed genus and species, is composed of 16 species in 15 genera. Osteological data are collected from all, and reported for the described genera for each of eight functional bone units: (1) neurocranium, (2) infraorbitals, (3) suspensorium and jaw apparatus, (4) hyoid apparatus, (5) opercular apparatus, (6) branchial apparatus, (7) pectoral girdle, and (8) caudal complex. Differences in 85 characters are evaluated as being either primitive or specialized by ontogenetic analysis or by comparison with an outgroup composed of the perciform genera: Pomatomus, Scombrops, and Scombrolabrax. Sources of error are discussed for character analysis utilizing monophyletic outgroups. It is determined that use of a non-monophyletic outgroup minimizes the probability of Type I errors. Shared specialized characters are used to construct a most parsimonicus cladogram. This cladogram resolves all 14 possible sistergroup relationships among the 15 genera. Thirty specialized characters are non-homoplastic and are hypothesized to have evolved only once within the Gempylidae. The gempylids are divided into six monophyletic groups. The Lepidocybium, Ruvettus, and Thyrsites groups are monotypic. The Epinnula group is composed of Epinnula, Neoepinnula, Thyrsitops, and the undescribed genus. The Nealotus group is composed of Nealotus, Promethichthys, and Rexea. The Gempylus group is composed of Gempylus, Thyrsitoides, Nesiarchus, Diplospinus, and Paradiplospinus.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Zoology. $3 518878
650 4 $a Aquaculture. $3 545878
650 4 $a Fish production. $3 3688049
650 4 $a Aquatic sciences. $3 3174300
655 7 $a Electronic books. $2 lcsh $3 542853
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710 2 $a The George Washington University. $3 1017405
773 0 $t Dissertations Abstracts International $g 44-07B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8320053 $z click for full text (PQDT)