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Published August 28, 2017 | Version v1
Journal article Open

The status of Enneanectes jordani and a new species of triplefin blenny from the Greater Caribbean (Teleostei: Tripterygiidae).

  • 1. Ocean Science Foundation, 4051 Glenwood, Irvine, CA 92604, USA and Guy Harvey Research Institute, Nova Southeastern University, 8000 North Ocean Drive, Dania Beach, FL 33004, USA

Description

A review of collections of triplefin blennies of the genus Enneanectes from the tropical western Atlantic Ocean
reveals a new species, Enneanectes quadra n. sp., belonging to the scaled-belly subgroup. The species is
distinguished by a lightly marked head, a mostly square dark bar on the caudal peduncle that is much darker than
the other body bars, a short first dorsal fin, and no scales on the preopercle. The species is apparently uncommon
and has been found to date in the Bahamas, St. Croix and Antigua in the Lesser Antilles, and in the western
Caribbean Sea at Yucatán (Mexico), Honduras, Belize, and Providencia. The mtDNA barcode COI sequence is
12.1% divergent from its nearest relative. Some specimens of the new species in museums have been identified
as “E. jordani”, but a forensic-type reexamination of the status of Enneanectes jordani (Evermann & Marsh,
1899) reveals the type specimens to be the same species as the common Enneanectes pectoralis Fowler, 1941,
and Enneanectes jordani now becomes the senior synonym for that widespread species. A phenetic NJ tree of
mtDNA sequences and a revised key to the eight current species of Enneanectes in the Greater Caribbean region
is presented.

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