Taxonomic revision of the genus Cloacina von Linstow (Nematoda : Strongyloidea) from macropodid marsupials.

1998 ◽  
Vol 12 (3) ◽  
pp. 273 ◽  
Author(s):  
I. Beveridge

The strongyloid nematode genus Cloacina von Linstow,parasitic in the stomachs of macropodid marsupials, is revised andmorphological taxonomic characters are analysed. Ninety species arerecognised, including 48 which are new. A key to the species is provided.New species are as follows: C. aedon,C. antigone,C. antiope,C. ares,C. artemis, C. caenis,C. cloelia, C. clymene,C. cybele, C. dindymene,C. dirce,C. dis,C. dryope,C. echidne, C. eileithyia,C. enyo, C. eos,C. epona, C. feronia,C. hebe, C. hecuba,C. hera,C. herceus,C. hermes,C. hestia,C. hypsipyle,C. io, C. ips,C. ixion, C. leto,C. littoralis,C. lityerses,C. maia, C. metis,C. nike, C. niobe,C. papillatissima, C. petronius,C . phaeax, C. phaedra,C. phaethon, C. polyxena,C. polyxo, C. selene,C. themis, C. tyche,C. typhon and C. tyro.Cloacina clarkae Mawson is treated as a synonym ofC. similis Johnston & Mawson, whileC. vestibulata Johnston & Mawson becomes a synonymof C. obtusa Johnston & Mawson.C. dubia Johnston & Mawson,C. inflataJohnston & Mawson andC. typica (Johnston & Mawson) are treated asspeciesinquirendae. An annotated checklist of parasites and hosts is provided.


2020 ◽  
Author(s):  
Tanapan Sukee ◽  
Ian Beveridge ◽  
Ahmad Jawad Sabir ◽  
Abdul Jabbar

Abstract Background: The strongyloid nematode subfamily Phascolostrongylinae are parasites of the large intestine and stomach of Australian macropods (Macropodidae) and wombats (Vombatidae). Based on morphological classifications, the Phascolostrongylinae is comprised of seven genera belonging to three tribes (Phascolostrongylinea, Macropostrongyloidinea, and Hypodontinea). The phylogenetic relationships among the genera of the Phascolostrongylinae were tested using the first and second internal transcribed spacer (ITS+) sequences of the ribosomal DNA. Results: Monophyly was encountered in the tribe Phascolostrongylinea comprising two genera, Phascolostrongylus and Oesophagostomoides, found exclusively in the large intestine of wombats. The tribe Hypodontinea, represented by the genera Hypodontus and Macropicola from the ileum and large intestine of macropods was also found to be monophyletic, but with low support. The tribe Macropostrongyloidinea comprising the genera Macropostrongyloides and Paramacropostrongylus was paraphyletic with the species occurring in the stomach grouping separately to those found in the large intestines of their hosts. Finally, Macropostrongyloides dissimilis from the stomach of the swamp wallaby and Paramacropostrongylus toraliformis from the large intestine of the eastern grey kangaroo were distinct from their respective congeners. Conclusion: The current study provided strong support for the generic composition of the tribe Phascolostrongylinea and low support for the tribe Hypodontinea. However, the relationships within the tribe Macropostrongyloidinea are more complex and its monophyly was not supported by the current ITS+ dataset. The unexpected finding of M. dissimilis and P. toraliformis being distantly related to their respective congeners suggests a requirement for future taxonomic revision which may warrant separation of these species at the generic level.



ZooKeys ◽  
2020 ◽  
Vol 945 ◽  
pp. 17-83
Author(s):  
Pipit Pitriana ◽  
Luis Valente ◽  
Thomas von Rintelen ◽  
Diana S. Jones ◽  
Romanus E. Prabowo ◽  
...  

To contribute to the taxonomic knowledge of barnacles in this understudied area, the first checklist of barnacles from the Moluccas is presented, including additional information on morphology, distribution, and substrate as well as molecular data. The species of barnacles from the Moluccas have been determined using morphological analysis and DNA sequences. During 19 field trips conducted between January 2016 and September 2017, 1,513 specimens of 24 species of intertidal and one species of deep-sea barnacles were collected from 51 localities from the islands. Morphological and molecular analysis of the collected material detected members of three families of stalked barnacles and four families of acorn barnacles. In addition to sampling in the field, we also surveyed the literature on barnacles from the Moluccas. In total, our checklist comprises 97 species from the Moluccas including 23 new records, two of them yet to be described species. Results suggest that the Moluccas have a much higher diversity of barnacles than previously known, for example, from the reports of Challenger and Siboga expeditions. For further work, routine application of molecular systematics could aid the detection of cryptic species, while increased sampling of more islands and a taxonomic revision of several groups would likely lead to an even higher number of species than currently known.



Parasitology ◽  
2017 ◽  
Vol 144 (13) ◽  
pp. 1828-1840 ◽  
Author(s):  
N. B. CHILTON ◽  
M. A. SHUTTLEWORTH ◽  
F. HUBY-CHILTON ◽  
A. V. KOEHLER ◽  
A. JABBAR ◽  
...  

SUMMARYSequences of the first and second internal transcribed spacers (ITS1 + ITS2) of nuclear ribosomal DNA were employed to determine whether the congeneric assemblages of species of the strongyloid nematode genus Cloacina, found in the forestomachs of individual species of kangaroos and wallabies (Marsupialia: Macropodidae), considered to represent species flocks, were monophyletic. Nematode assemblages examined in the black-striped wallaby, Macropus (Notamacropus) dorsalis, the wallaroos, Macropus (Osphranter) antilopinus/robustus, rock wallabies, Petrogale spp., the quokka, Setonix brachyurus, and the swamp wallaby, Wallabia bicolor, were not monophyletic and appeared to have arisen by host colonization. However, a number of instances of within-host speciation were detected, suggesting that a variety of methods of speciation have contributed to the evolution of the complex assemblages of species present in this genus.



2003 ◽  
Vol 54 (3-4) ◽  
pp. 135-143
Author(s):  
Jiří Moravec
Keyword(s):  




2015 ◽  
Vol 42 (2) ◽  
pp. 226-235 ◽  
Author(s):  
G. N. H. Waller

Eight species of mesoplodont whales (genus Mesoplodon Gervais, 1850) named during the nineteenth century are based on valid descriptions. A checklist with the original description and type material for each of these species is provided. Additional data given may include type locality and illustrative sources, type material holding institution and type registration number(s). The only type specimen for which a record of external morphology was published relates to the 1803 stranding of Sowerby's beaked whale (Mesoplodon bidens).



2009 ◽  
Vol 36 (1) ◽  
pp. 4-25 ◽  
Author(s):  
P. G. MOORE

Attention is drawn to the one side remaining of a nineteenth-century correspondence addressed to Alexander Somerville that is housed in the archives of the Scottish Association for Marine Science at Oban, concerning conchological matters. Previously unstudied letters from James Thomas Marshall shed new light on the practicalities of offshore dredging by nineteenth-century naturalists in the Clyde Sea Area; on personalities within conchology; on the controversies that raged among the conchological community about the production of an agreed list of British molluscan species and on the tensions between conchology and malacology. In particular, the criticism of Canon A. E. Norman's ideas regarding taxonomic revision of J. G. Jeffreys's British conchology, as expressed by Marshall, are highlighted.





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