Sphyrapus malleolus Norman & Stebbing 1886
Creators: name: Esquete, P.
name: Cunha, M. R.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Sphyrapodidae
Sphyrapus
Sphyrapus malleolus

description: Sphyrapus malleolus Norman & Stebbing, 1886
Sphyrapus malleolus Norman & Stebbing, 1886: 98 –99, pl. 22. Holdich & Jones 1983a: 36 –37, fig.10. Błażewicz-Paszkowycz et al. 2011: 22 –28, figs. 13–16 (redescription).
Material examined. Gulf of Cadiz—Mud volcanoes. Mercator MV: St. MSM 01–3 _ 241, 353 m, 8 neuters (DBUA 0002015.01). Gemini MV: St. 64PE253_06, 418 m, 2 neuters; St. 64PE253_ 10, 432 m, 1 ♂; St. 64PE253_ 11, 438 m, 1 neuter; St. 64PE253_ 15, 600 m, 1 neuter (DBUA0002016.02–05). Lazarillo de Tormes MV: St. 64PE237_ 22, 518 m, 2 neuters (DBUA0002016.07); St. 64PE253_38B, 497 m, 1 neuter (DBUA0002016.06). Meknès MV: St. MSM01–3_ 319, 695 m, 5 ♀♀, 2 ovigerous ♀♀, 4 ♂♂, 24 neuters (DBUA0002015.05). Yuma MV: St. TTR16_AT 604, 1030 m, 1 specimen (DBUA0002018.01). Bonjardim MV: St. MSM01–3_ 133, 3049 m, 2 neuters; St. MSM01–3_ 139, 3054 m, 1 neuter (DBUA0002015.03–04).
Gulf of Cadiz—Carbonate and coral mounds. Pen Duick Escarpment: St. 64PE237_5A, 529 m, 1 neuter; St. 64PE237_5C, 533 m, 1 neuter; St. 64PE237_07, 570 m, 3 neuters; St. 64PE237_ 12, 538 m, 1 neuter; St. 64PE237_ 15, 570 m, 1 neuter; St. 64PE237_ 17, 618 m, 1 neuter (DBUA 0002017.02–07); St. TTR16_AT 600, 610 m, 2 neuters; St. TTR16_AT 602, 556 m, 9 neuters (DBUA0002018.02–03); St. 64PE253_ 22, 557 m, 1 neuter; St. 64PE253_ 24, 571 m, 1 ovigerous ♀, 1 neuter; St. 64PE253_ 41, 568 m, 2 ♂♂, 2 neuters; St. 64PE253_ 52, 622 m, 1 neuter; St. 64PE253_ 53, 651 m, 1 neuter; St. 64PE253_ 57, 598 m, 1 neuter (DBUA0002006.07–12). Mound B: St. 64PE268_11A, 489 m, 2 neuters; St. 64PE268_ 23, 498 m, 3 ♂♂, 2 ovigerous ♀♀, 5 neuters; St. 64PE268_ 24, 495 m, 1 ♂, 7 neuters; St. 64PE268_ 25, 490 m, 2 ♂♂, 4 neuters; St. 64PE268_ 27, 471 m, 2 specimens; St. 64PE268_ 28, 515 m, 1 ♀, 1 neuter; St. 64PE268_ 29, 508 m, 1 neuter (DBUA0002019.01–07). Mound C: St. 64PE268_45, ca. 800 m, 1 neuter (DBUA0002019.08). Mound D: St. 64PE268_ 42, 451 m, 2 neuters (DBUA0002019.09). Mound M: St. MSM01-3_ 321, 732 m, 2 ♀♀, 3 neuters (DBUA0002015.05).
Gulf of Cadiz—Off mound and reference samples. El Arraiche area: St. 64PE253_ 36, 542 m, 1 neuter; St. 64PE253_ 40, 542 m, 1 neuter (DBUA 0002016.01–02); St. 64PE268_07, 432 m, 1 ♂; St. 64PE268_09, 428 m, 1 neuter (DBUA0002019.10–11). Carbonate Province: St. 64PE268_ 20, 765 m, 1 neuter; St. 64PE268_55, ca. 700 m, 2 specimens (DBUA 0002019.13).
Other records in the GoC. See Błażewicz-Paszkowycz et al. (2011).
Distribution and Ecology. Sphyrapus malleolus is widely distributed in the East Atlantic ocean, from the Rockall Plateau to the Angola Basin, including off Greenland, the Bay of Biscay and off Portugal (Băcescu 1985; Bamber 2000; Holdich & Jones 1983a, b; Larsen et al. 2006; Norman & Stebbing 1886; Sieg 1983). The depth range is 199 to 3061 m (Błażewicz-Paszkowycz et al., 2011). In the GoC, it shows a ubiquitous distribution, and has been found throughout the Gulf on both Iberian and Moroccan margin, as well as in the Deep Field. In Kidd and Meknès MVs, S. malleolus was found on the crater, flank and adjacent sites. The maximum density was found at the crater of Meknès MV, with 170 individuals.m -2. In sites where vertical stratification was investigated, the species reached 5–10 cm depth.
description: Published as part of Esquete, P. & Cunha, M. R., 2017, The Apseudomorpha (Crustacea: Tanaidacea) of the Gulf of Cadiz and Horseshoe Continental Rise (NE Atlantic): A taxonomic review with new records, species, and ecological data, pp. 61-95 in Zootaxa 4276 (1) on page 86, DOI: 10.11646/zootaxa.4276.1.3, http://zenodo.org/record/804608