Family LANCEOLIDAE Bovallius, 1887

Megalanceola stephenseni

© Copyright from Zeidler 1992: fig. 5.

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Introduction

The family Lanceolidae comprises five genera of deep-water hyperiideans, usually living below 1000 m depth. Vinogradov et al. (1982) placed Paralanceola in the family Archaeoscinidae. Bowman & Gruner (1973) provided a key to the world genera; more recent keys to the world genera and species are found in Vinogradov et al. (1982; in Russian). Lanceolids have been only recently recorded from Australian waters (Zeidler 1992). Little is known about the biology of these crustaceans. Lanceola sayana was reported in association with a medusa (Laval 1990).

Diagnosis

Head deeper or much deeper than long; anteroventral margin oblique; rostrum present. Body laterally compressed. Antenna 1 shorter or longer than antenna 2; peduncle 3-articulate or 1- or 2-articulate; peduncular article 1 longer than article 2; article 2 subequal to, or longer than article 3; calceoli absent. Mouthparts well developed. Mandible molar absent. Maxilla 1 inner plate present; palp 1-articulate. Gnathopod 1 simple; carpus subequal to, or longer than propodus; dactylus large or minute. Gnathopod 2 dactylus well developed or minute. Pereopods some, all or none prehensile; some or all of 3–7 with hooded dactyli. Pereopod 3 carpus shorter than, subequal to, or longer than propodus. Pereopod 5 shorter than, subequal to, or longer than pereopod 6; basis without posteroventral lobe; carpus linear. Pereopod 6 longer than pereopod 7; basis linear. Pereopod 7 basis linear. Uropod 2 inner ramus subequal to outer ramus. Uropod 3 not sexually dimorphic; biramous.

General References

Bovallius, C. 1887. Contributions to a monograph of the Amphipoda Hyperiidea. Part 1: 1. The families Tyronidae, Lanceolidae and Vibilidae. Kongliga Svenska Vetenskaps-Academiens Nya Handlingar, Stockholm 21(5): 1-72

Bowman, T.E. & Gruner, H.E. 1973. The families and genera of Hyperiidea (Crustacea: Amphipoda). Smithsonian Contributions to Zoology 146: 1-64

Laval, P. 1980. Hyperiid amphipods as crustacean parasitoids associated with gelatinous zooplankton. Oceanography and Marine Biology Annual Reviews 18: 11-56

Vinogradov, M.E., Volkov, A.F. & Semenova, T.N. 1982. Amphipoda — Hyperiidea of the World Ocean. Nauka Leningrad U.S.S.R. Opred. po Faune S.S.S.R 132: 1-491 [in Russian]

Zeidler, W. 1992. Hyperiid amphipods (Crustacea: Amphipoda: Hyperiidea) collected recently from eastern Australian waters. Records of the Australian Museum 44(1): 85-133

Zeidler, W. 1998. Pelagic amphipods (Crustacea: Amphipoda: Hyperiidea) collected from eastern and south-eastern Australian waters by the CSIRO vessel "Warreen" during the years 1938–1941. Records of the South Australian Museum (Adelaide) Monograph Series 4: 1-143

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