| Clavelina lepadiformis (Müller, 1776) | Spain | 4/25/24 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | |  available for loan |
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| Clavelina lepadiformis (Müller, 1776) | Spain | 4/25/24 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | available for loan |
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| Microcosmus squamiger Michaelsen, 1927 | Spain | 4/25/24 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | available for loan |
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| Laparocerus anagae Machado, 2015 | Spain | 2/21/24 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | 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 | 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 | DNA | N/A | | 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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| 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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| Erebia palarica Chapman, 1905 | Spain | 7/2/22 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | available for loan |
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| Graellsia isabellae Graëlls, 1849 | Spain | 5/27/22 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | available for loan |
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| Graellsia isabellae Graëlls, 1849 | Spain | 5/27/22 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | available for loan |
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| Gluvia dorsalis (Latreille, 1817) | Spain | 8/1/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | available for loan |
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| Stigmatoteuthis arcturi G. C. Robson, 1948 | Spain | 2/28/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | available for loan |
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| Bonellia viridis Rolando, 1822 | Spain | 10/12/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | available for loan |
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| Malpolon monspessulanus (Hermann, 1804) | Spain | 7/22/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | available for loan |
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| Malpolon monspessulanus (Hermann, 1804) | Spain | 7/22/23 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | MNCN, Madrid | DNA | N/A | | available for loan |
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