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Pleijel, Fredrik. (1998). Phylogeny and classification of Hesionidae (Polychaeta). Zoologica Scripta. 27(2): 89-163, 38 figures, 7 tables.
51383
10.1111/j.1463-6409.1998.tb00433.x [view]
Pleijel, Fredrik
1998
Phylogeny and classification of Hesionidae (Polychaeta)
Zoologica Scripta
27(2): 89-163, 38 figures, 7 tables.
Publication
World Polychaeta Database (WPolyDb)
Available for editors  PDF available
Hesionid interrelationships are assessed in a parsimony analysis of 97 (86 informative) absent/present coded morphological characters of 37 terminal taxa within the group. Character information is based on examination of available types, newly collected topotypes and additional non‐types, with introduction of many not previously recorded characters. Polarity is assessed differently in two separate analyses, one by outgroup comparison with nereids and chrysopetalids, yielding two equally parsimonious trees, and one by observations from juvenile hesionids, yielding 10 equally parsimonious trees. The outgroup rooted trees are selected for a reclassification, and three main groups are recognised: Hesiolyrinae, new subfamily, Hesioninae Grube, 1850, and Ophiodrominae, new subfamily. Hesiolyrinae is monotypic for Hesiolyra, Hesioninae includes Hesionini Grube, 1850 and Psamathini, new tribe, and Ophiodrominae includes Gyptini and Ophiodromini, both new tribes. Sirsoe, new genus and member of Psamathini, is established for Orseis grasslei Blake, 1985 and the yet undescribed Sirsoe A. High degrees of homoplasy are demonstrated for a number of characters traditionally used in hesionid taxonomy, e.g., distribution of anterior, enlarged cirri, and first segment provided with neurochaetae and neuropodial lobes. Diagnoses and descriptions are provided for all supraspecific hesionid taxa and a checklist of hesionids is included. For improved precision in polychaete descriptions it is suggested that the term ‘tentacular cirri’ should be replaced by ‘anteriorly situated cirri’ with specified position and morphology. The following new generic synonyms are introduced: Lamproderma Grube, 1877, objective junior synonym of Leocrates Kinberg, 1866; Neopodarke Hartman, 1965 junior synonym of Nereimyra Blainville, 1828; Orseis Ehlers, 1864, junior synonym of Ophiodromus Sars, 1862; Paragyptis Pocklington, 1984 junior synonym of Gyptis Marion & Bobretzky in Marion, 1874; and Podarke Ehlers, 1864, objective junior synonym of Ophiodromus. Additionally a number of new species group synonyms and new combinations are proposed. Parallel to the Linnaean, type‐based definitions of taxon names, a hesionid classification is introduced with phylogenetic taxon name definitions.
Systematics, Taxonomy
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Gyptini (additional source)
Gyptini (original description)
Gyptis Marion, 1874 (additional source)
Gyptis bruneli (Pettibone, 1961) (new combination reference)
Hesionidae Grube, 1850 (status source)
Nereimyra Blainville, 1828 (additional source)
Ophiodrominae Pleijel, 1998 (original description)
Ophiodrominae Pleijel, 1998 (additional source)
Parahesione bruneli Pettibone, 1961 accepted as Gyptis bruneli (Pettibone, 1961) (source of synonymy)
Podarke Ehlers, 1864 accepted as Oxydromus Grube, 1855 (status source)
Psamathinae Pleijel, 1998 (original description)
 Classification

Uncertain. Pleijel (1998:150) indicated that Hesionella Hartman might have affinities to Microphthalmus, not ... [details]

 Classification

Uncertain (Rouse & Pleijel, 2003). Pleijel (1998:150) indicated that Microphthalmus, is not regarded as a hesionid ... [details]

 Classification

Pleijel (1998:151) considered the affinity of Struwela to be uncertain, and stated it lacked the characters to ... [details]

 Classification

Regarded as not a hesionid by Pleijel (1998), and Salazar-Vallejo et al (2019) transferred the genus to ... [details]

 Etymology

Author: "Sirsoe is an anagram of Orseis, the original generic allocation of the type species. Gender feminine." [details]

 Grammatical gender

Feminine as treated as feminine by Lamarck and early subsequent authors, also likely named after a Greek female name. [details]

 Grammatical gender

feminine. Designated feminine by author [details]

 Homonymy

junior unreplaced homonym to Periboea Ehlers, 1864 in Hesionidae [details]

 Homonymy

Psamathe Johnston, 1836 is valid as Psamathe Rafinesque, 1814 in Isopoda is a nomen nudum fide Holthius (1954) and ... [details]

 Nomenclature

Pleijel (1998:122) discusses the names Psamathe and Kefersteinia. The 2nd is subjective synonym of the first, which ... [details]

 Nomenclature

Pleijel (1998) and Pleijel et al (2012) misspelled Nereimyra 'longicirrata' as 'longocirrata'. Thus transferred ... [details]

 Nomenclature

Pleijel (1998:122) notes that Hartman (1959:192) incorrectly treats the misspelling in Sars (1853) as the ... [details]

 Nomenclature

Established with minimal explanation for a Syllidia armata record of Langerhans. Pleijel (1998) synonymises the ... [details]

 Spelling

error for Hesione proctochona Schmarda, 1861 [details]

 Status

Pleijel (1998:147) placed Hesiocaeca as incertae sedis as he assessed the type species material as indeterminable ... [details]

 Status

Nominal tribe Hesionini is redundant as its former sister taxon Psamathini has been upgraded to Psamathinae. [details]

 Synonymy

An assertion of the generic re-assignment of P. blacki and P. australiensis is not available in the literature. ... [details]

 Taxonomy

Pleijel 1998 appears not to reassign this name from Castalia, as type material is not available. Castalia is invalid. [details]

 Taxonomy

There has been no type designation for Fallacia. Quatrefages (1866:98) erected it for two existing Hesione species, ... [details]

 Taxonomy

The genus was originally erected in the family Hesionidae by Ehlers (1913: 468), and later moved to Syllidae by Day ... [details]

 Taxonomy

Affinity unknown and indeterminable according to Pleijel (1998:150) [details]

 Taxonomy

Suggested generic placement of Pleijel (1998), and later unmodified by him in a revision (Pleijel et al., 2012) of ... [details]

 Type designation

The genus Cirrosyllis was established in Hesionidae by Schmarda (1861), to include six new species: Cirrosyllis ... [details]

 Type species

According to Pleijel (1998:159) no type was ever designated. The two names originally included are now regarded as ... [details]

 Type specimen

BMNH 1921.5.1.1102. This holotype specimen has been lost in transit (fide Pleijel, 1998) [details]

 Type specimen

no type material is extant (Pleijel, 1998:27) [details]

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