Aldrovandia phalacra ( Vaillant, 1888 )

Bañón, Rafael, Arronte, Juan Carlos, Armesto, Ángeles, Barros-García, David & Carlos, Alejandro De, 2016, Halosaur fishes (Notacanthiformes: Halosauridae) from Atlantic Spanish waters according to integrative taxonomy, Zootaxa 4184 (3), pp. 471-490 : 482

Aldrovandia phalacra ( Vaillant, 1888)

Fig. 6.

Halosaurus phalacrus, Vaillant [L. L.] 1888 : 185, Pl. 15 (fig. 3), 16 (figs. 1-1c). Morocco, 1,103–2,190 m ; Sudan, 1,250–1,435 m ; Azores, 37°35'N, 29°26'W, 1,442–2,220 m . Lectotype: MNHN 1885-0382. McDowell 1973: 91 –92 (key), 105–114 (description); Filatova 1985: 27 –29 (description), 33–34 (key); Sulak 1986a: 593 –598 (description, key); Sulak 1986b: 196 –197 (description, key); Maul 1976: 20 –22 (description); Smith 2003 (key).

Material examined. MHNUSC 25014- 1, 190 mm TL, 7th August 2011, Galicia Bank; 42º41.771'N— 011º33.647'W ; 1,536 m depth; MHNUSC 25012- 2, 330 mm TL, 6th August 2011, Galicia Bank; 42º41.771'N— 11º33.647'W ; 1,477 m depth.

Description. Body shape eel-like, moderately compressed, elongated and attenuated to the caudal peduncle; top of snout and head scaleless, opercle scaleless; the preoral portion of the snout is short, contained 3.8 and 4.7 times in the snout length; first dorsal ray very short and vestigial; pelvic fins lie well in advance of dorsal origin; palatine tooth patches separate; pyloric caeca black and anal opening white surrounded by a dark field. The main morphometric and meristic characteristics are presented in Table 7 .

Habitat and distribution. Benthopelagic between 500–2,300 m depth. Circumglobal , mainly at tropical and temperate latitudes. Eastern Atlantic, from the Gulf of Biscay to Guinea and off South Africa ; western Atlantic from Greenland, New England, USA to Bahamas and off southern Brazil ; eastern Pacific , in Hawaii and Chile ( Froese & Sampang 2004; Yeh et al. 2006).