Fig. 4 in Positive association between PTN polymorphisms and schizophrenia in Northeast Chinese Han population. Author Cantero, Álvaro Luis Peña text Zoological Studies 2024 2024-06-20 63 17 141 149 http://dx.doi.org/10.5281/zenodo.12829528 journal article 10.6620/ZS.2024.63-17 1810-522X Acryptolaria minuta Watson, 2003 ( Fig. 3A ) Acryptolaria minuta Watson, 2003: 163−164 , fig. 13A–C; Peña Cantero and Vervoort, 2010: 302–304 , figs. 18, 30; Peña Cantero, 2020: 288 , figs. 1D, 3E−F, 5G. Material examined : Stn 98, one stem fragment 9 mm long with several hydrothecae, without coppinia ( NIWA 114754). Description : Stem fragment 9 mm long, with hydrothecae arranged alternately in two planes forming a very open angle. Hydrotheca markedly curved outwards, tubular, free part cylindrical, diameter barely dwindling basally at adnate part. Hydrotheca adnate to internode for about two-thirds of its length. Free adcauline wall strongly convex; adnate part much less so. Abcauline wall concave, but nearly straight at basal part. Hydrothecal aperture circular, directed outwards, often parallel to longitudinal axis of branch; rim even, with up to four renovations. Measurements (in µm) : Hydrothecae : abcauline wall 680−700, free part of adcauline wall 230−350, adnate part of adcauline wall 550−570, adcauline wall 850−860, diameter at aperture 110−130, diameter at base 80. Cnidome (taken with × 40): putative macrobasic mastigophores, range 17.5–20 × 7.5. Remarks : The material consists of a single stem fragment, 9 mm long; however, the specimen corresponds well to recent descriptions of the species by Peña Cantero and Vervoort (2010) and Peña Cantero (2020) . The species is well characterised by the shape and size of the hydrotheca and the size of the larger nematocysts ( e.g. , 17–19 × 7–8 µm in Peña Cantero and Vervoort 2010 ). Ecology and distribution : Acryptolaria minuta has been collected from depths of 300 ( Peña Cantero and Vervoort 2010 ) to 1422 m ( Watson 2003 ); present material from 676 to 750 m . This species has been previously recorded north of Macquarie Island ( Watson 2003 ), from the Loyalty Islands and Norfolk Ridge areas ( Peña Cantero and Vervoort 2010 ) and off Antipodes Island, southeast of New Zealand ( Peña Cantero 2020 ). The material studied here was collected from Seamount 9 Hjort, south of Macquarie Island .