Megalanceola Pirlot, 1935

Zeidler, Wolfgang, 2009, A review of the hyperiidean amphipod superfamily Lanceoloidea Bowman & Gruner, 1973 (Crustacea: Amphipoda: Hyperiidea), Zootaxa 2000, pp. 1-117 : 75-76

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Megalanceola Pirlot, 1935


Genus Megalanceola Pirlot, 1935

Megalanceola Pirlot, 1935: 1 . Pirlot 1939: 8. Bowman & Gruner 1973: 20–21. Vinogradov 1964: 114. Vinogradov et al. 1982: 81–82. Vinogradov 1999: 1171.

Type species. Lanceola stephenseni Chevreux, 1920 , designated by Pirlot (1935). The unique type, a male measuring about 12 mm in the curled position, is in the MOM (37 1081), on microscope slides. The type locality is the North Atlantic, near the Azores [36°17’N 28°53’W]; Princesse Alice II Stn. 1849, 0–3000 m, 8 Sept. 1904.

Diagnosis. Body length of females up to 95 mm, of males up to 56 mm. Pereon broadened dorsoventrally. Eyes relatively large, oval. Antennae 1 with large callynophore; terminal three articles subequal in length or marginally progressively longer. Antennae 2 relatively strong; length about 2.5x A1. Mandibles with massive palp; length about 1.8x mandibular body; third article of palp shorter than second; mandibular body relatively narrow, especially above insertion of palp towards incisor. Maxillae 1; palp with feathered setae on outer distal corner; inner lobes narrow, papilliform. Maxillae 2; outer lobe armed with six long setae terminally; inner lobe with four long setae. Maxilliped with relatively large, broad inner lobes, about half-length outer lobes or slightly less. Pereopods 3 & 4 with moderate, curved, non-retractile dactylus. Pereopods 5–7 with retractile and hooded dactyls with spoon-shaped process.


Sexual dimorphism. Males differ from females mainly in the shape and size of the first antennae, which are relatively larger in males ( Fig. 27). Mature males also have distinct genital papillae, medially near the base of the seventh pereopods. Females also tend to achieve a much larger size than males.

Remarks. This is a relatively distinctive genus bearing some resemblance to Lanceola . It contains one of the largest species of Hyperiidea , exceeded only by some species of Cystisoma ( Cystisomatidae )

This genus was established by Pirlot (1935) to accommodate his new species, M. terra-novae , which he later (1939) concluded to be synonymous with Lanceola stephenseni Chevreux, 1920 . Only one other species, Lanceola remipes Barnard, 1932 , was previously included in this genus, but it is here removed to a new genus, Megalanceoloides gen. nov. Thus, the genus is now monospecific. Its relationship to Megalanceoloides gen. nov. is discussed under that genus.












Megalanceola Pirlot, 1935

Zeidler, Wolfgang 2009


Vinogradov, G. M. 1999: 1171
Vinogradov, M. E. & Volkov, A. F. & Semenova, T. N. 1982: 81
Bowman, T. E. & Gruner, H. - E. 1973: 20
Vinogradov, M. E. 1964: 114
Pirlot, J. M. 1939: 8
Pirlot, J. M. 1935: 1