Synaphobranchus brevidorsalis Günther 1887

(Fig. 4 E)

Material examined. 74 specimens, 102. 0–1007.0 mm TL: MNRJ 26752 (1, 730.0 mm), AG, ASTRO 2003021001; MNRJ 26753 (2, 398.0–880.0 mm), AG, ASTRO 2003082703; MNRJ 26754 (1, 526.0 mm), T, E- 551; MNRJ 26752 (1, 739.0 mm), AG, ASTRO 2003021001; MNRJ 26755 (1, 955.0 mm), AG, ASTRO 2003082601; MNRJ 26756 (1, 603.0 mm), AG, ASTRO 2003082704; MNRJ 26768 (1, 803.0 mm), T, E- 528; MNRJ 26769 (1, 102.0 mm), AG, ASTRO 2003020803; MNRJ 26771 (13, 390.0–665.0 mm), T, E- 526; MNRJ 26772 (8, 481.0–943.0 mm, 1 cs), T, E- 537; MNRJ 26774 (7, 566.0–903.0 mm), T, E- 549; MNRJ 26776 (13, 363.0–882.0 mm), T, E- 496; MNRJ 26777 (1, 1007.0 mm), T, E- 527; MNRJ 26778 (3, 578.0– 870.0 mm), T, E- 520; MNRJ 26779 (3, 455.0–657.0 mm), T, E- 525; MNRJ 26780 (7, 345.0–718.0 mm), T, E- 501; MNRJ 26781 (6, 533.0–970.0 mm), T, E- 548; MNRJ 26782 (1, 839.0 mm), T, E- 536; UF 165822 (1, 697.0 mm), collected with MNRJ 26776; USNM 389075 (2, 443.0–363.0 mm), collected with MNRJ 26776.

Distribution. Synaphobranchus brevidorsalis was described from off New Guinea and Japan, and is distributed in the tropical and temperate Pacific, Indian and Atlantic Oceans, from about 37 ºN to 29 ºS (Robins & Robins 1989; Sulak & Shcherbachev 1997).