Presentation on theme: "The globally unique fauna of the Victorian coast"— Presentation transcript:
1 The globally unique fauna of the Victorian coast Sea CucumbersThe globally unique fauna of the Victorian coastP. Mark O’LoughlinHonorary Associate, Museum Victoria, Marine Science(since 1980)My acknowledgement and gratitude for:Images provided by Marine Research Group members Leon Altoff, John Eichler and Platon Vafiadis.Assistance with image editing and PowerPoint by Liz Dane (Museum Victoria).
23 “Hickman’s psolid seacucumber” Psolidium ravum Hickman, 1962 Syntype AM J7202 (30 mm long)Specimen from Tasmania, Derwent Estuary
24 “Golden-red sea cucumber” Squamocnus aureoruber O’Loughlin and O’Hara, 1992Specimen 7 mm longVarious stages of fissiparity
25 “Constrictions sea cucumber” Molpadiodemas constrictus O’Loughlin and Ahearn, 2005Paratype USNM (51 mm long)Specimen from North Atlantic Ocean, Puerto Rico Trench, 7086 m, 20 January 1973, collected by RV Gilliss
26 “Marsupial sea cucumber” Neocnus bimarsupiis O’Loughlin and O’Hara, 1992Specimen 5 mm long
27 “Maroon brooding sea cucumber” Pentocnus bursatus O’Loughlin and O’Hara, 1992Holotype, NMV F57549 (6 mm long)Juveniles and embryosCape Paterson 1980, 1981
28 “Chocolate sea cucumber” Staurothyone inconspicua (Bell, 1887) Coelomic embryo / juvenile attached to gonad tubuleBrood juveniles dissected from the coelom of a female
29 “Blue-grey sea cucumber” Neoamphicyclus lividus Hickman, 1962 Adult (20 mm long) with brood 528 brood juveniles (October)Adult (30 mm long) with single large brood juvenile (December)Adult (10 mm long) with 58 brood juveniles removed from coelom
34 Cucumaria sp. cf. georgiana (Lampert, 1886) Specimen from Prydz Bay, AntarcticaComposite drawing by Mark O’Loughlin of male (with genital papilla in tentacle crown) and female (with anterior interradial marsupia with openings at the introvert)
35 Cucumaria sp. cf. georgiana (Lampert, 1886) Male (23 mm long) with digitate genital papilla (1.5 mm long) on oral discAnterior view of female with juvenile emerging from marsupium, juveniles in marsupiaFemale (37 mm long) with with openings (two) into anterior interradial marsupia
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