Genus of fishes
Helcogramma genus in the triplefin family Tripterygiidae . The blennies in the genus Helcogramma are found throughout the Indo-Pacific and in the South Atlantic Ocean off the islands of St Helena and Ascension .[ 2]
Characteristics
The fishes in the genus Helcogramma are characterised by the possession of a continuous lateral line which bends down towards the operculum , this lateral line comprises 7–39 tubular pored scales. There are three spines in the first dorsal fin and the anal fin has one spine, the pelvic fin has a single spine and two rays. The head is scaleless and normally the bases of the dorsal and anal fins have a scaleless strip. There are five bones in the joint between the caudal fin and the vertebrae , the hypurals.[ 3]
Species
There are currently 41 recognized species in this genus:
Helcogramma albimacula J. T. Williams & Howe , 2003Helcogramma alkamr Holleman , 2007Helcogramma aquila J. T. Williams & C. J. McCormick , 1990Helcogramma ascensionis Lubbock , 1980Helcogramma atauroensis Fricke & Erdmann, 2017 [ 3] Helcogramma billi P. E. Hadley , 1986Helcogramma capidata Rosenblatt , 1960Helcogramma cerasina J. T. Williams & Howe , 2003Helcogramma chica Rosenblatt , 1960Helcogramma decurrens McCulloch & Waite , 1918Helcogramma desa J. T. Williams & Howe , 2003Helcogramma ellioti (Herre , 1944) Helcogramma ememes Holleman , 2007Helcogramma fuscipectoris (Fowler , 1946) (Fourspot triplefin)Helcogramma fuscopinna Holleman , 1982Helcogramma gymnauchen (M. C. W. Weber , 1909) (Red-finned triplefin)Helcogramma hudsoni (D. S. Jordan & Seale , 1906) (Hudson's triplefin)Helcogramma inclinata (Fowler , 1946) (Triangle triplefin)Helcogramma ishigakiensis Aoyagi , 1954[ 4] Helcogramma kranos R. Fricke , 1997Helcogramma lacuna J. T. Williams & Howe , 2003Helcogramma larvata R. Fricke & J. E. Randall , 1992Helcogramma maldivensis R. Fricke & J. E. Randall , 1992Helcogramma microstigma Holleman , 2006Helcogramma nesion J. T. Williams & Howe , 2003Helcogramma nigra J. T. Williams & Howe , 2003Helcogramma novaecaledoniae R. Fricke , 1994Helcogramma obtusirostris (Klunzinger , 1871) (Hotlips triplefin)Helcogramma randalli J. T. Williams & Howe , 2003Helcogramma rharhabe Holleman , 2007Helcogramma rhinoceros P. E. Hadley , 1986Helcogramma rosea Holleman , 2006Helcogramma serendip Holleman , 2007Helcogramma shinglensis Lal Mohan, 1971 Helcogramma solorensis R. Fricke , 1997Helcogramma springeri P. E. Hadley , 1986Helcogramma steinitzi E. Clark , 1980Helcogramma striata P. E. Hadley , 1986Helcogramma trigloides (Bleeker , 1858) (Scarf triplefin)Helcogramma vulcana J. E. Randall & E. Clark , 1993Helcogramma williamsi M. C. Chiang & I. S. Chen , 2012[ 5]
References
^ Eschmeyer, William N. ; Fricke, Ron & van der Laan, Richard (eds.). "Helcogramma " . Catalog of Fishes California Academy of Sciences . Retrieved 23 May 2019 .^ Jeffrey T. Williams & Carolyn J. McCormick (1990). "Two New Species of the Triplefin Fish Genus Helcogramma (Tripterygiidae) from the Western Pacific Ocean". Copeia . 1990 (4): 1020– 1030. doi :10.2307/1446485 . JSTOR 1446485 . ^ a b Fricke, Ronald; Erdmann, Mark V. (2017). "Helcogramma Atauroensis, A New Species of Triplefin from Ataúro Island, Timor-Leste, Eastern Indian Ocean (Teleostei: Tripterygiidae)". Journal of the Ocean Science Foundation . 26 : 34– 45. doi :10.5281/zenodo.377034 . ^ Tashiro, Satokuni; Motomura, Hiroyuki (2014). "The Validity of Helcogramma ishigakiensis (Aoyagi, 1954) and a Synopsis of Species of Helcogramma from the Ryukyu Islands, Southern Japan (Perciformes: Tripterygiidae)" . Species Diversity . 19 (2): 97– 110. doi :10.12782/sd.19.2.097 ^ Chen, I-Shiung; Chiang, Min-Chia (2012). "A new species of the genus Helcogramma (Blenniiformes, Tripterygiidae) from Taiwan" . ZooKeys (216): 57– 72. doi :10.3897/zookeys.216.3407 PMC 3426895 PMID 22936878 .
