Ceratosoma tenue
Abraham, 1876
Photographed by: Francesco de Marchi
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Opisthobranchia |
| Order: | Nudibranchia |
| Suborder: | Doridina |
| Family: | Chromodorididae |
| Species: | Ceratosoma tenue |
Comment from Richard Willan on photo #8032
Note the 2 pairs of mantle extensions in front of the gills.Comment from Richard Willan on photo #4575
Note the 2 pairs of mantle extensions in front of the gills.Comment from Scott Johnson on photo #31970
Odd color, but I think the two lobes per side make this C. tenue.Comment from Richard Willan on photo #7651
Probably a juvenile individual in which the first pair of lobes are only weakly developed.Comment from Richard Willan on photo #5303
A juvenile individual with its gills retracted. Note the two pairs of lateral processes.Comment from Richard Willan on photo #3189
Note the two mantle lobes in front of the gills which characterise this species.Comment from Richard Willan on photo #2683
A juvenile individual.Locality:
- Indonesia
- Lembeh (68) Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
- Bali (6) Feb, Mar, Apr, Jul, Oct
- Flores (5) Oct, Nov, Dec
- Ambon (4) Jan, May, Oct
- North Sulawesi (4) Apr, May
- Komodo (3) Jun, Aug, Sep
- Rinca Island (3) Oct, Dec
- Manado (2) Aug, Oct
- Bunaken (1) Dec
- Raja Ampat (1) Jan
- Wakatobi (1) Nov
- Sangeang Island (1) Jan
- Philippines
- Taiwan
- Long Dong (3) May, Jul
- USA
- Maui, Hawaii (3) Mar, Aug, Dec
- Oahu, Hawaii (1) Jan
- South Korea
- Jeju Island (3) Mar, Sep
- Kenya
- Watamu (3) Mar
- Kilifi Creek (2) Nov
- Mombasa (1) Aug
- Malindi (1) Dec
- Australia
- Nelson Bay (2) Jan, Feb
- Queensland (2) Mar, Oct
- New South Wales (1) Jan
- Tanzania
- Zanzibar (2) Sep
- India
- Andaman & Nicobar Islands (1) Nov
- Thailand
- Koh Phi Phi (1) Mar
- Thailand (1) May
- PNG
- Malaysia
- Perhentian (1) May
- Myanmar
- Myanmar (1) Apr
Pictures of Ceratosoma tenue
Similar Species
Ceratosoma gracillimum can be distinguished externally by the complete absence of the mantle edge between the head and the well-developed lateral lobes on each side.
Ceratosoma trilobatum has the mantle edge, edged in purple, between the head and the lateral lobes. Both species have a similar range of colour variations, as does Ceratosoma tenue, but they differ from each other externally by the lack of a mantle edge in Ceratosoma gracillimum and the extra pair of small lateral lobes in Ceratosoma tenue.
