2000
DOI: 10.1046/j.1463-6409.2000.00044.x
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Clypeatula cooperensis gen. n., sp. n., a new freshwater sponge (Porifera, Spongillidae) from the Rocky Mountains of Montana, USA

Abstract: A new genus and species of freshwater sponge, Clypeatula cooperensis, collected from three lakes in the Northern Rocky Mountains of Montana, USA, are described. The sponge grows as a hard, disc-shaped encrustation on the undersides of rocks and logs. It lacks microscleres and has amphioxeal megascleres that often show a slight midregion bulb and are usually covered with short, conical spines except at their tips. The sponge is also non-gemmulating, overwintering in a regressed state in which choanocyte chamber… Show more

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Cited by 17 publications
(18 citation statements)
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References 17 publications
(20 reference statements)
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“…The topology of clade 2 makes the genus Ephydatia paraphyletic with respect to Clypeatula . Peterson & Addis (2002) placed C. cooperensis in a newly erected genus because of its distinctive morphological and ecological characteristics and following the practice of placing species lacking gemmules, gemmoscleres, and microscleres (such as C. cooperensis ) in new genera until their phylogenetic relationships can be clarified (for discussion, see Boury‐Esnault & Volkmer‐Ribeiro 1992). Phylogenetic analyses of 18S rDNA sequences grouped C. cooperensis in a (spongillid + lubomirskiid) clade, but the analyses left unclear the relationship of C. cooperensis to the lubomirskiid species and E. muelleri , the only member of the genus Ephydatia included in the study (Peterson & Addis 2000).…”
Section: Discussionmentioning
confidence: 99%
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“…The topology of clade 2 makes the genus Ephydatia paraphyletic with respect to Clypeatula . Peterson & Addis (2002) placed C. cooperensis in a newly erected genus because of its distinctive morphological and ecological characteristics and following the practice of placing species lacking gemmules, gemmoscleres, and microscleres (such as C. cooperensis ) in new genera until their phylogenetic relationships can be clarified (for discussion, see Boury‐Esnault & Volkmer‐Ribeiro 1992). Phylogenetic analyses of 18S rDNA sequences grouped C. cooperensis in a (spongillid + lubomirskiid) clade, but the analyses left unclear the relationship of C. cooperensis to the lubomirskiid species and E. muelleri , the only member of the genus Ephydatia included in the study (Peterson & Addis 2000).…”
Section: Discussionmentioning
confidence: 99%
“…Clypeatula cooperensis , Ephydatia muelleri , Eunapius fragilis , and Spongilla lacustris were collected as described previously (Peterson & Addis 2000); E. muelleri and S. lacustris were also collected from the Pachaug River, Connecticut, USA (41°35′N/71°56′W) (collection site from DeSanto & Fell 1996). Corvomeyenia sp.…”
Section: Methodsmentioning
confidence: 99%
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“…The universal primers LCO1490 and HCO2198, described in Folmer et al (1994), were used to amplify a segment of the cytochrome c oxidase subunit I (COI) mitochondrial gene (5'End fragment). To amplify a fragment of the 18S rRNA gene, we used the forward primer 5'-CTGGTGCCAGCAGCCGCGG-3' and reverse primer 5'-TGGTGCCCTTCCGTCAATTCCT-3' modified from Kelly-Borges and Pomponi (1994) as described by Peterson and Addis (2000). Finally, the forward primer 28sCallyF 5'-TGCGACCCGAAA-GATGGTGAACTA-3' and reverse primer 28sCallyR 5'-ACCAACACCTTTCCTGGTATCTGC-3' were designed based on 28s rRNA sequences of C. plicifera and C. multiformis available in Genbank (accession nos.…”
Section: Dna Extraction and Sequencingmentioning
confidence: 99%