Spicomacrurus dictyogadus Iwamoto, Shao & Ho, 2011

Schwarzhans, Werner, 2014, Head and otolith morphology of the genera Hymenocephalus, Hymenogadus and Spicomacrurus (Macrouridae), with the description of three new species, Zootaxa 3888 (1), pp. 1-73 : 20

Spicomacrurus dictyogadus Iwamoto, Shao & Ho, 2011

Figs. 3A–B , 5

Spicomacrurus dictyogadus Iwamoto, Shao & Ho, 2011: 518 (type locality: 16°18’S, 167°46’E).

Discussion. The unique holotype of S. dictyogadus (MNHN 2009-1455) was visually inspected, but no otolith was extracted and no additional observations were made to the description of Iwamoto et al. (2011), and the figure included is based on their detailed photographs. The species is remarkable for its blunter head profile with barely protruding, short and not spatulate nasal bones, characters which are considered plesiomorphic in respect to the other members of the genus.

Figures

FIGURE 3. Heads of the species of Spicomacrurus: A–B—Spicomacrurus dictyogadus, holotype, MNHN 2009-1455, redrawn from Iwamoto, Shao & Ho (2011), A—Lateral view, B—Dorsal view. C–D—Spicomacrurus adelscotti, WAM P.28073-004, C—Lateral view, D—Dorsal view. E–F—Spicomacrurus kuronumai, E—Lateral view, NSMT P46796, F—Dorsal view, NSMT P103488. G–H—Spicomacrurus mccoskeri, MNHN 1994-0881, G—Lateral view, H—Dorsal view.

FIGURE 5. Geographical distribution of the species of Spicomacrurus.