Comet (Calloplesiops altivelis) is also known as the Marine Betta

Comet ( Fish) – Facts and Photographs

The Comet (Calloplesiops altivelis) is also known as the Marine Betta because of their similarity to the Siamese Fighter. They are stunning looking fishes that are rarely seen in the open during the day in ...
Snubnose Grouper (Epinephelus macrospilos) is also known as the Large-spotted Rockcod, Bigspot Rockcod and Longfin Grouper

Snubnose Grouper – Facts and Photographs

The Snubnose Grouper (Epinephelus macrospilos) is also known as the Large-spotted Rockcod, Bigspot Rockcod and Longfin Grouper.. They are one of the eight species of reticulated groupers that live on coral ...
Honeycomb grouper Epinephelus merra

Honeycomb Grouper – Facts and Photographs

The Honeycomb grouper Epinephelus merra is also known as the Dwarf-spotted Grouper, the Honeycomb Rock Cod and the Wire-netted Rock Cod. They are one of the eight species of reticulated groupers that live o...
Blue Tang (Paracanthurus hepatus)

Regal Blue Tang-Facts and Photographs

The Regal Blue Tang (Paracanthurus hepatus) is also known as the  Blue Tang, the Palette Surgeonfish, the Hepatus Tang  and of course more famously as Dory from the Pixar movies "Finding Nemo" and "Finding ...
Bobtail squid also known as Pigmy Squid

Bobtail Squid- Facts and Photographs

Bobtail squid are also known as Dumpling Squid. They are exceptionally cute looking little cephalopods and are fascinating to watch.  They are in the order Sepiolida and are closely related to cuttlefish al...
Olive Purse Crab, Leucosia pubescens

Olive Purse Crab- Facts and Photographs

The Olive Purse Crab, Leucosia pubescens does not seem to be common in Tanzanian waters and indeed does not seem to be recorded here. Hopefully the identification is correct. They are decapod crustaceans...
Sundial shell (Architectonica perspectiva)

Sundial Shell-Facts and Photographs

The Sundial shell (Architectonica perspectiva) is  also known as the Perspective Sundial shell and the Clear Sundial shell.  They are marine snails in the super family Architectonicoidea and were first desc...
Squat Shrimp (Thor amboinensis) is also known as the Sexy Shrimp

The Squat Shrimp-Facts and Photographs

The Squat Shrimp (Thor amboinensis) is also known as the Sexy Shrimp. They are small colorful shrimp that form a comensual relationship with various species of anemone. They have a habit of holding their ab...
Pemba chromis (Chromis pembae)

Pemba Chromis – Facts and Photographs

The Pemba chromis (Chromis pembae) is not a common fish on the Tanzanian coast and we have only seen them in three areas. They were only described by Allen in 2010, perhaps because they are generally found ...
Unicorn Shrimp in the genus Plesionika

Unicorn Shrimp- Facts and Photographs

The Unicorn Shrimp (Genus Plesionika) are also known as the Narwhal Shrimp.  They obtain their name from the proportionally very long rostrum spine  extending out quite far from the carapace. The rostrum ha...
Sleek unicornfish (Naso hexacanthus) is also known as the Blacktongue unicornfish

Sleek Unicornfish -Facts and Photographs

The Sleek unicornfish (Naso hexacanthus) is also known as the Blacktongue unicornfish. In terms of numbers they are probably the most numerous Unicornfish in Tanzanian waters. Fishes within the Acanthuri...
Cigar wrasse (Cheilio inermis) is also known as the Sharp-nosed Rainbowfish, Pêche madame, Julia Larguirucha and Kamasubera

Cigar Wrasse- Facts and Photographs

The Cigar wrasse (Cheilio inermis) is also known as the Sharp-nosed Rainbowfish, Pêche madame, Julia Larguirucha and Kamasubera. They are not a common wrasse on Tanzanian reefs but neither are they uncommon...
White-Mouth Moray eel (Gymnothorax Meleagris)

Unusual Moray Eel

While diving on Octopus Reef off Dar es Salaam, Tanzania I noticed a strange looking Moray Eel with its head protruding from a hole. It seemed unlike any other Moray Eel that I had seen before. A clo...
Palefin Unicornfish (Naso brevirostris) also known as the Shortnose Unicornfish, and the Spotted Unicornfish

Palefin Unicornfish -Facts and Photographs

The Palefin Unicornfish (Naso brevirostris) is also known as the Shortnose Unicornfish,  and the Spotted Unicornfish. They are the most common Unicornfish in Tanzania. Fishes within the Acanthuridae fami...
Eyebar Goby (Gnatholepis cauerensis) is also known as the Shoulderspot Goby, the Bridled Goby and the Cauer Eye-bar Goby

Eyebar Goby – Facts and Photographs

The Eyebar Goby (Gnatholepis cauerensis) is also known as the Shoulderspot Goby, the Bridled Goby and the Cauer Eye-bar Goby. There is some disagreement as to the validity of this species and how they shoul...

Partridge Tun Shell-Facts and Photographs

The Partridge Tun shell (Tonna perdix) is a large fairly reclusive mollusk rarely encountered on shallow night dives in Tanzanian waters. They are marine snails in the super family Tonnoidea. They are unusu...
Lunar Fusilier (Caesio lunaris) is also known as the Blue Fusilier and the Moon Fusilier.

Lunar Fusilier- Facts and Photographs

The Lunar Fusilier (Caesio lunaris) is also known as the Blue Fusilier and the Moon Fusilier. They are not as common as the other Fusiliers on the East African coast and we have not seen them swimming with ...
Coral Scallop (Pedum spondyloideum ) is also known as the Iridescent Clam

Coral Scallop-Facts and Photographs

The Coral Scallop (Pedum spondyloideum) is also known as the Iridescent Clam and the Blue Lipped coral Oyster. They are however scallops.  They reside within several species of hard stony corals, but are mo...
Gorgeous Shrimpgoby Amblyeleotris wheeleri also known as the Gorgeous Prawn-goby, the Barred Shrimpgoby and Wheeler's Shrimp-goby

Gorgeous Shrimp Goby – Facts and Photographs

The Gorgeous Shrimp Goby (Amblyeleotris wheeleri) is also known as the Gorgeous Prawn-goby, the Barred Shrimp goby, the Burgundy Shrimp goby and Wheeler's Shrimp-goby. They are fairly common on the Tanzania...
Senatorial Scallop (Mimachlamys sanguinea)

Senatorial Scallop-Facts and Photographs

The Senatorial Scallop (Mimachlamys sanguinea) seems to have been named scientifically several times in the past and was previously known as Chlamys senatoria, Chlamys porphyrea and Chlamys australis.  They a...
Graceful lizardfish (Saurida gracilis) also called the Blotchy lizardfish and Slender Lizardfish

Graceful Lizardfish- Facts and Photographs

The Graceful Lizardfish (Saurida gracilis) also called the Blotchy Lizardfish. Close up they are easily distinguished from other Lizardfish by the shape of the mouth and the protruding teeth as seen in the ...
Sand lizardfish is also known as the Clearfin Lizzardfish

Sand Lizardfish- Facts and Photographs

The Sand lizardfish (Synodus dermatogenys) is also known as the Clearfin Lizzardfish and the Banded Lizzardfish. They are often confused with the Variegated Lizardfish (Synodus variegatus) but are notably d...