Spicomacrurus Okamura, 1970
publication ID |
https://doi.org/10.11646/zootaxa.3888.1.1 |
publication LSID |
lsid:zoobank.org:pub:1B437AE1-CF28-4C1B-95B6-C31A295905A0 |
DOI |
https://doi.org/10.5281/zenodo.10238801 |
persistent identifier |
https://treatment.plazi.org/id/463A8F36-FFA2-FFEB-1297-9F17E064FD5F |
treatment provided by |
Felipe (2021-06-15 04:07:37, last updated 2023-12-01 02:02:54) |
scientific name |
Spicomacrurus Okamura, 1970 |
status |
|
Spicomacrurus Okamura, 1970 View in CoL View at ENA
Spicomacrurus Okamura 1970: 63 View in CoL , as subgenus of Hymenogadus Gilbert & Hubbs, 1920 View in CoL , type species by original designation Hymenocephalus kuronumai Kamohara, 1938 View in CoL .
Hymenocephalus (Spicomacrurus) : Iwamoto & Merrett 1997: 514.
Spicomacrurus: Iwamoto, Shao & Ho, 2011: 514 View in CoL .
Diagnosis. Modified from Iwamoto et al. (2011) Leading spine of dorsal fin smooth. Ventral striae consisting of fine parallel lines of dark, alternating with silvery pigment associated with light-producing function on abdominal wall, parts of chest, and shoulder girdle, not joint at median line behind pelvic fin bases. Head not cavernous. Nasal bones forming broad, horizontal, lateral, and medial plate-like processes; nasal bones of both sides in broad contact (two species), or widely separated by rostral cartilage (two species). Gill rakers 9–15. Additional diagnostic features from otolith morphology are: Elongate shape of otoliths (OL:OH = 1.45–1.95); otoliths thin due to slightly concave outer face; relatively low and short predorsal lobe; ventral sulcus margin at collum indented; pseudocolliculum indistinct, short.
Comparison. Spicomacrurus is remarkable for the spectacular specialization of its broad spatulate nasal bones (see above). It further differs from the related genera Hymenogadus and Hymenocephalus by the lack of the cavernous cephalic canal system covered by thin skin (integument). It shares with Hymenogadus the short ventral striae, which are not joined along the mesial line behind the pelvic fin bases, and the rather slender otoliths with the narrow, ventrally indented collum and the short pseudocolliculum.
Species. Four species, all from the western Pacific, S. adelscotti , S. dyctiogadus , S. kuronumai and S. mccoskeri .
Gilbert, C. H. & Hubbs, C. L. (1920) The macrouroid fishes of the Philippine Islands and the East Indies. United States National Museum Bulletin, 100 (1), 369 - 588. http: // dx. doi. org / 10.5962 / bhl. title. 13637
Iwamoto, T. & Merrett, N. R. (1997) Pisces Gadiformes: Taxonomy of grenadiers of the New Caledonian region, southwest Pacific. Memoires du Museum national d'Histoire naturelle, 176, 473 - 570.
Iwamoto, T., Shao, K. - T. & Ho, H. - C. (2011) Elevation of Spicomacrurus (Gadiformes: Macrouridae) to generic status, with descriptions of two new species from the southwestern Pacific. Bulletin of Marine Science, 87 (3), 513 - 530. http: // dx. doi. org / 10.5343 / bms. 2011.1004
Kamohara, T. (1938) On the offshore bottom fishes of Prov. Tosa, Shikoku, Japan. Tokyo, 86 pp.
Okamura, O. (1970) Fauna Japonica. Macrourina (Pisces). Academic Press of Japan, Tokyo, pp. 1 - 216.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
Kingdom |
|
Phylum |
|
Class |
|
Order |
|
Family |
Spicomacrurus Okamura, 1970
Schwarzhans, Werner 2014 |
Spicomacrurus: Iwamoto, Shao & Ho, 2011: 514
Iwamoto, T. & Shao, K. - T. & Ho, H. - C. 2011: 514 |
Hymenocephalus (Spicomacrurus)
Iwamoto, T. & Merrett, N. R. 1997: 514 |
Spicomacrurus
Okamura, O. 1970: 63 |