| Tarphius canariensis Wollaston, 1862 | Spain | 2/20/24 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | specimen | Whole organism | |  available for loan |
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| Tarphius canariensis Wollaston, 1862 | Spain | 2/20/24 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | specimen | Whole organism | | available for loan |
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| Saxifraga vayredana Luizet | Spain | 8/9/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | specimen | unknown | | available for loan |
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| Obama nungara Carbayo, Alvarez-Presas, Jones & Riutort, 2016 | Spain | 1/11/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | specimen | unknown | | available for loan |
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| Ophryotrocha puerilis Claparède & Mecznikow, 1869 | Spain | 1/9/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | specimen | Whole organism | | available for loan |
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| Gesiella jameensis (Hartmann-Schröder, 1974) | Spain | 10/12/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | specimen | unknown | | available for loan |
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| Lineus sanguineus (Rathke, 1799) | Spain | 5/25/22 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | specimen | Other somatic animal tissue | | available for loan |
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| Avellara fistulosa (Brot.) Blanca & C.Díaz | Spain | 10/31/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | specimen | leaf | | available for loan |
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| Ophryotrocha puerilis Claparède & Mecznikow, 1869 | Spain | 1/9/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | available for loan |
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| Ophryotrocha puerilis Claparède & Mecznikow, 1869 | Spain | 1/9/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | tissue | Whole organism | | available for loan |
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| Ophryotrocha puerilis Claparède & Mecznikow, 1869 | Spain | 1/9/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | available for loan |
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| Ophryotrocha puerilis Claparède & Mecznikow, 1869 | Spain | 1/9/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | tissue | Whole organism | | available for loan |
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| Ophryotrocha puerilis Claparède & Mecznikow, 1869 | Spain | 1/9/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | available for loan |
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| Ophryotrocha puerilis Claparède & Mecznikow, 1869 | Spain | 1/9/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | tissue | Whole organism | | available for loan |
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| Ophryotrocha puerilis Claparède & Mecznikow, 1869 | Spain | 1/9/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | tissue | Whole organism | | available for loan |
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| Gyrocaryum oppositifolium Valdés | Spain | 4/11/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | tissue | Whole plant | | available for loan |
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| Ephydatia muelleri (Lieberkühn, 1856) | United States | 7/13/19 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | tissue | unknown | | available for loan |
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| Ephydatia muelleri (Lieberkühn, 1856) | United States | 7/13/19 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | tissue | unknown | | available for loan |
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| Ephydatia muelleri (Lieberkühn, 1856) | United States | 7/13/19 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | tissue | unknown | | available for loan |
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| Ephydatia muelleri (Lieberkühn, 1856) | United States | 7/13/19 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | tissue | unknown | | available for loan |
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