| Species | Name Used |
|---|---|
| Caecum directum Vannozzi, 2019 | Caecum directum (p. 83 ) |
| Caecum frugi Vannozzi, 2019 | Caecum frugi (p. 80 ) |
| Caecum granulatum Vannozzi, 2019 | Caecum granulatum (p. 79 ) |
| Caecum nasutum Vannozzi, 2019 | Caecum nasutum (p. 76 ) |
| Caecum neoguineanum Vannozzi, 2019 | Caecum neoguineanum (p. 87 ) |
| Caecum nofronii Vannozzi, 2019 | Caecum nofronii (p. 79 ) |