Subject
- Specific Epithet: tenax 20
- Specific Epithet: tenuirostre 20
- (Class)19
- (Family)19
- (Genus)19
- (Kingdom)19
- (Order)19
- (Phylum)19
- (Specific Epithet)19
- Family: Scapaniaceae19
- Specific Epithet: cristatus 19
- Specific Epithet: demissum 19
- Specific Epithet: elegans 19
- Specific Epithet: heteromalla 19
- Specific Epithet: humilis 19
- Specific Epithet: novae-angliae 19
- Specific Epithet: pseudotriquetrum 19
- Specific Epithet: striatella 19
- Family: Porellaceae18
- Genus: Ctenidium18