King crabs up-close: ontogenetic changes in ornamentation in the family Lithodidae (Crustacea, Decapoda, Anomura), with a focus on the genus Paralomis Author Hall, Sally Author Thatje, Sven National Oceanography Centre, Southampton (NOCS), School of Ocean and Earth Science, University of Southampton, European Way, Southampton, SO 14 3 ZH (UK) smh 57 @ noc. soton. ac. uk text Zoosystema 2010 2010-09-30 32 3 495 524 http://www.bioone.org/doi/abs/10.5252/z2010n3a10 journal article 10.5252/z2010n3a10 1638-9387 5167458 Paralomis mendagnai Macpherson, 2003 ( Fig. 6 ) Paralomis mendagnai Macpherson, 2003: 414 , figs 1-3. TYPE LOCALITY. — Solomon Islands , 9°06.9’S , 159°53.2’E , 869-912 m DISTRIBUTION. — Solomon Islands , 400-1200 m . MATERIAL EXAMINED. — 6 ♀♀ (CL 7-49.9 mm ), 6 šš (CL 11-59 mm ). SPECIMENS FIGURED. — Solomon Islands , 896-1012 m , 25-26.IX.2001 , 3 šš CL 11, 36, 58.8 mm ( MNHN Pg-6408). REMARKS From an ovigerous female found 700-800 m in the Solomon Islands , this species is known to be reproductively mature by at least CL 50 mm . Paralomis mendagnai appears to be different from other South Pacific groups studied ( Fig. 14 ) in the smoothly rounded tubercles of the adults, which have pits (possibly minute setae) on the apex (not in a circular pattern). Specimens in the CL 10-25 mm size class had conical, or spiniform tubercles, unlike anything found on specimens above CL 30 mm . The small paratype of P. mendagnai , ( Fig. 6A, B ) has a spiniform enlargement ( Fig. 6B ) of one of the conical tubercles of the mid-branchial region, whereas the surrounding tubercles are much smaller. In positions on the carapace where juveniles have such enlarged conical tubercles, specimens larger than CL 30 mm have only wide (> 3 mm diameter), flat or rounded tubercles ( Fig. 4D, F ).