Salmo nigripinnis
Salmo nigripinnis, also known as the sonaghen, is a species of fish within the family Salmoninae. Description 
Salmo nigripinnis can range in body colour from light brown to silver, with large black spots. Fins of the species are dark brown or black, with elongated pectoral fins. Distribution and habitat 
Salmo nigripinnis is endemic to Lough Melvin. Lough Melvin's waters cross the northwest border of the Republic of Ireland (County Leitrim) into Northern Ireland's County Fermanagh, meaning that this species lake habitat is in both Ireland and the United Kingdom. S. nigripinnis live in open areas of the lake in deep water. During the months of November and December, the fish will journey to small inflowing rivers to spawn. The lake contains various plankton such as Cladocera and aquatic chironomid pupae of which S. nigripinnis feeds. References

Further reading

Fish described in 1866
Freshwater fish of Ireland
nigripinnis
Taxa named by Albert Günther