Phylogenetic Relationships and New Classification of the Superfamily Scorpaenoidea (Actinopterygii: Perciformes)

Imamura, Hisashi

doi:10.12782/specdiv.9.1

Cited by 37 publications

(78 citation statements)

References 6 publications

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“…It seems to be impossible to describe accurately the phylogenetic relationships among scorpaenids at present. The present situation between the type II-1 and II-3 is well refl ected in the morphological phylogenetic relationship by Imamura (2004).…”

Section: Discussionmentioning

confidence: 55%

“…In the phylogenetic relationship among scorpaenids, two different opinions were expressed recently. Imamura (2004) described that Sebastiscus is contained in the most basal clade, Sebastes in the second most basal clade, and other genera are derivative by morphological analysis. In contrast, Smith and Wheeler (2004) indicated that Sebastes forms a cluster with Helicolenus and are derivative within the scorpaenids, by comparing with about 3400 aligned base pairs of mitochondrial and nuclear DNA.…”

Section: Discussionmentioning

confidence: 99%

“…It is thought that copulation evolved separately in both genera (Fig. 6) if it applies to the phylogenetic hypothesis by Imamura (2004).…”

Section: Discussionmentioning

confidence: 99%

“…(3) The eggs are encompassed by gelatinous material in oviparous, zygoparous, and embryoparous species (Sparta, 1928(Sparta, , 1941aKrefft, 1961;Pearcy, 1962;Fishelson, 1977), and a similar gelatinous material is seen in the ovary of the viviparous species (Kusakari, 1995). Although various phylogenetic relationships among the scorpaenids have been advocated by many researchers (Ishida, 1994;Imamura, 1996Imamura, , 2004Mandrytsa, 2001), the relationship between the genera among the Scorpaenidae is still unclear.…”

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confidence: 99%

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Comparative study on ovarian structures in scorpaenids: possible evolutional process of reproductive mode

Koya

Muñoz

2007

Ichthyol Res

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The reproductive modes of the Scorpaenidae are extremely varied: oviparity, viviparity, and even spawning of internally fertilized eggs or embryos (zygoparity or embryoparity), as in Helicolenus, are known. The ovarian structure of this family is divided into two types by the arrangement of the stroma and the ovarian cavity. One type is the ovary in which the lamella-like stroma develops from the ovarian hilus located on the dorsal side and where the ovarian cavity is located on the ventral side of ovary, classifi ed as "cystovarian type II-1" by Takano (1989). In the other type, the stroma in the ovary develops radially around the blood circulatory system that traverses the center of the ovary, and then the ovarian cavity surrounds all the ovary, classifi ed as "cystovarian type II-3" by Takano (1989). In the present analysis, previous reports about ovarian structure and the relationship to the reproductive mode of scorpaenids were described, and the ovarian structure of eight genera of Scorpaenidae was examined. The ovary of cystovarian type II-1 is seen only in viviparous genera and is not seen in oviparous genera. However, the cystovarian type II-1 is a general structure in other families of Scorpaeniformes, and this structure could be considered a primitive type of ovary rather than that acquired by the process of evolution from oviparity to viviparity. The ovary of cystovarian type II-3 is seen in all six oviparous genera and the one zygoparous genus examined. The ovary of this type is not found in any other family of teleosts, so it could be a structure originally divided in Scorpaenidae. In the genera having the cystovarian type II-3 ovary, there is a common feature of spawning: a fl oating egg mass encompassed by the gelatinous material. We postulate that the evolution of reproductive mode in the scorpaenid fi shes is as follows: Sebastes and Sebastiscus have a primitive ovary in which viviparity has developed, whereas the genera that spawn a fl oating egg mass evolved the ovarian structure from primitive type to cystovarian type II-3, and further zygoparity, such as in Helicolenus, evolved from them.

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Section: Discussionmentioning

confidence: 55%

Section: Discussionmentioning

confidence: 99%

“…It is thought that copulation evolved separately in both genera (Fig. 6) if it applies to the phylogenetic hypothesis by Imamura (2004).…”

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Comparative study on ovarian structures in scorpaenids: possible evolutional process of reproductive mode

Koya

Muñoz

2007

Ichthyol Res

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“…The scorpaenoid lineage comprises two groups, the scorpaenoids and the platycephaloids, with a total of 19 families (see Ishida, 1994;Imamura, 1996). The monophyly of this group has been much debated (see Matsubara, 1943;Ishida, 1994;Imamura, 1996Imamura, , 2004Imamura and Shinohara, 1998;Mandrytsa, 2001;Imamura and Yabe, 2002). The monophyly of the scorpaenoid lineage is supported by several osteological (presence of backwardly directed opercular spine that extends beyond the subopercle; suborbital stay with its end pointed; uppermost pectoral radial and scapula fused; presence of spines associated with the parietal sensory canal), larval (single postocular spine in larval stage) and myological (presence of adductor dorsalis; transversus lateralis posterior with a tendon anteriorly and extrinsic swimbladder muscle derived from obliquus superioris) characters.…”

Section: Interrelationshipsmentioning

confidence: 99%

Enigmatic spiny‐rayed fish from the Eocene of Monte Bolca, Italy

Банников

Carnevale

2010

Geological Journal

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A new genus and species of percomorph fish, Pietschellus aenigmaticus gen. et sp. nov., is described from the Eocene (Ypresian) micritic limestone of the Monte Postale site of the Monte Bolca locality, northern Italy. This new percomorph taxon is based on a single well-preserved nearly complete specimen that exhibits a unique combination of features. A detailed comparative analysis indicates that Pietschellus possibly was a benthic fish which shares several character states with certain lophiiform, callionymoid, trachinoid, blennioid, pterygocephalid, cottoid and scorpaenoid taxa. Most of these shared character states, however, are reductive and seem to be related to the convergent benthic lifestyle and/or to the relative elongation of the body, being the product of parallel or convergent evolution. Therefore, the present evidence does not favour any sister-group relationship and, as a consequence, Pietschellus is placed as incertae sedis within the percomorph fishes.

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2016

Fishes of the World

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Phylogenetic Relationships and New Classification of the Superfamily Scorpaenoidea (Actinopterygii: Perciformes)

Cited by 37 publications

References 6 publications

Comparative study on ovarian structures in scorpaenids: possible evolutional process of reproductive mode

Comparative study on ovarian structures in scorpaenids: possible evolutional process of reproductive mode

Enigmatic spiny‐rayed fish from the Eocene of Monte Bolca, Italy

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