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The diverse Grania fauna (Clitellata : Enchytraeidae) of the Esperance area, Western Australia, with descriptions of two new species
Rota, Emilia; Wang, Hongzhu; Erseus, Christer; Rota, E, Univ Siena, Dept Environm Sci, Via PA Mattioli 4, I-53100 Siena, Italy
2007
Source PublicationJOURNAL OF NATURAL HISTORY
ISSN0022-2933
Volume41Issue:17-20Pages:999-1023
AbstractSeven species of the marine enchytraeid genus Grania Southern, 1913 are described from sediments sampled during the 2003 International Workshop on the Marine Flora and Fauna of Esperance Bay and the Recherche Archipelago, on the southern coast of Western Australia. Two species are new to science, the euryhaline Tasmanian G. dolichura Rota and Erseus, 2000 represents a new record for the state, and the remaining four species were known from other parts of Western Australia. Grania quaerens sp. n. is recognized by having a high chaetal index (= 5 short chaetal foot), small coelomocytes, penial apparati with long whip-like terminal stylets, conspicuous spermathecae with ectally bulbous ducts, and ectally granulated ampullae housing sperm rings in their ental region. Grania sperantia sp. n. is readily distinguishable by the complete lack of lateral chaetae, a multiple-banded pattern of the clitellum, extremely long sperm funnels, and the intrasegmental location of the spermathecal pores. The latter new species and four others in the collection (G. bykane Coates, 1990, G. crassiducta Coates, 1990, G. dolichura, and G. ersei Coates, 1990) are remarkable in possessing the head organ, a sensory structure unique to Grania that was not noted previously in Western Australian species. When considering the whole genus, the geographic pattern of the head organ appears southern-centred: of the 17 species of Grania reported to possess it, as many as 13 inhabit the southern latitudes. The seventh species of the Esperance collection, G. vacivasa Coates and Stacey, 1993, is notable for the kind of items found in its gut and the unusual appearance of its pygidium.; Seven species of the marine enchytraeid genus Grania Southern, 1913 are described from sediments sampled during the 2003 International Workshop on the Marine Flora and Fauna of Esperance Bay and the Recherche Archipelago, on the southern coast of Western Australia. Two species are new to science, the euryhaline Tasmanian G. dolichura Rota and Erseus, 2000 represents a new record for the state, and the remaining four species were known from other parts of Western Australia. Grania quaerens sp. n. is recognized by having a high chaetal index (= 5 short chaetal foot), small coelomocytes, penial apparati with long whip-like terminal stylets, conspicuous spermathecae with ectally bulbous ducts, and ectally granulated ampullae housing sperm rings in their ental region. Grania sperantia sp. n. is readily distinguishable by the complete lack of lateral chaetae, a multiple-banded pattern of the clitellum, extremely long sperm funnels, and the intrasegmental location of the spermathecal pores. The latter new species and four others in the collection (G. bykane Coates, 1990, G. crassiducta Coates, 1990, G. dolichura, and G. ersei Coates, 1990) are remarkable in possessing the head organ, a sensory structure unique to Grania that was not noted previously in Western Australian species. When considering the whole genus, the geographic pattern of the head organ appears southern-centred: of the 17 species of Grania reported to possess it, as many as 13 inhabit the southern latitudes. The seventh species of the Esperance collection, G. vacivasa Coates and Stacey, 1993, is notable for the kind of items found in its gut and the unusual appearance of its pygidium.
SubtypeArticle
KeywordEnchytraeidae Grania Head Organ New Species Taxonomy Western Australia
DepartmentUniv Siena, Dept Environm Sci, I-53100 Siena, Italy; Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan, Peoples R China; Univ Gothenburg, Dept Zool, Gothenburg, Sweden
Subject AreaBiodiversity Conservation ; Ecology
DOI10.1080/00222930701391682
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS SubjectBiodiversity Conservation ; Ecology
WOS IDWOS:000247967500002
WOS KeywordOLIGOCHAETA ; ANNELIDA ; ATLANTIC
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8502
Collection期刊论文
Corresponding AuthorRota, E, Univ Siena, Dept Environm Sci, Via PA Mattioli 4, I-53100 Siena, Italy
Affiliation1.Univ Siena, Dept Environm Sci, I-53100 Siena, Italy
2.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan, Peoples R China
3.Univ Gothenburg, Dept Zool, Gothenburg, Sweden
Recommended Citation
GB/T 7714
Rota, Emilia,Wang, Hongzhu,Erseus, Christer,et al. The diverse Grania fauna (Clitellata : Enchytraeidae) of the Esperance area, Western Australia, with descriptions of two new species[J]. JOURNAL OF NATURAL HISTORY,2007,41(17-20):999-1023.
APA Rota, Emilia,Wang, Hongzhu,Erseus, Christer,&Rota, E, Univ Siena, Dept Environm Sci, Via PA Mattioli 4, I-53100 Siena, Italy.(2007).The diverse Grania fauna (Clitellata : Enchytraeidae) of the Esperance area, Western Australia, with descriptions of two new species.JOURNAL OF NATURAL HISTORY,41(17-20),999-1023.
MLA Rota, Emilia,et al."The diverse Grania fauna (Clitellata : Enchytraeidae) of the Esperance area, Western Australia, with descriptions of two new species".JOURNAL OF NATURAL HISTORY 41.17-20(2007):999-1023.
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