New records of the genus Crispatotrochus (Scleractinia; Caryophylliidae) from New Caledonia, with description of a new species Author Kitahara, Marcelo V. ARC Centre of Excellence for Coral Reef Studies and Coral Genomics Group, Molecular Science Bld, Annex, James Cook University, Douglas Campus, Townsville, Qld 4811, Australia (CAPES fellowship). E-mail: mvkitahara @ yahoo. com. br Department of Zoology (Invertebrate Zoology), National Museum of Natural History, Smithsonian Institution, P. O. Box 37012, Washington, D. C., 20013 - 7012 United States of America. E-mail: cairnss @ si. edu Corresponding author Author Cairns, Stephen D. text Zootaxa 2008 2008-11-24 1940 1 59 68 https://biotaxa.org/Zootaxa/article/view/zootaxa.1940.1.6 journal article 10.11646/zootaxa.1940.1.6 1175­5334 5230999 Key to the Recent species of Crispatotrochus 1 Septa arranged hexamerally.........................................................................................................................2 - Septa arranged decamerally.......................................................................................................................11 2 Pedicel unattached; corallum cornute ................................................................... Crispatotrochus curvatus - Pedicel attached; ceratoid to turbinate.........................................................................................................3 3 S1 larger than S2..........................................................................................................................................4 - S1 equal in width to S2................................................................................................................................5 4 Theca transverse ridged; S1 and S2 sinuous .......................................................... Crispatotrochus rugosus - Theca not transversed ridge; S1 and S2 not sinuous ................................. Crispatotrochus septumdentatus 5 S1–2 with sinuous inner edges....................................................................................................................6 - S1–2 with straight inner edges.....................................................................................................................9 6 S3 with sinuous inner edges........................................................................................................................7 - S3 with straight inner edges..................................................................................... Crispatotrochus cornu 7 Columella fused, composed of closely united, poorly defined, twisted ribbons Crispatotrochus irregularis - Columella with well defined columellar elements......................................................................................8 8 Septa arranged in four complete cycles; fossa nonextant ............................. Crispatotrochus galapagensis - Septa arranged in five (complete) or six (incomplete) cycles; fossa moderately deep.................................. ............................................................................................................................ Crispatotrochus rubescens 9 Costae absent .......................................................................................................... Crispatotrochus niinoi - Costae present (ridged or flat) .................................................................................................................. 10 10 Columella composed of 4–7 broad, twisted laths; S5 present; costae slightly ridged near calicular edge.... ..................................................................................................................................... Crispatotrochus foxi - Columella composed of 28–32 narrow, twisted laths; S5 absent; costae flat ...... Crispatotrochus inortatus 11 S1 exsert.....................................................................................................................................................12 - S1 nonexsert .......................................................................................................... Crispatotrochus squiresi 12 Last septal cycle with serrate to lacerate inner edges................................................................................13 - Last septal cycle with entire inner edges..................................................................................................14 13 GCD = 6................................................................................................................. Crispatotrochus woodsi - GCD> 6........................................................................................... C . sp. cf. C. cornu sensu Cairns, 1979 14 Adult stage with more than 3 cycles of septa (>40 septa) ................................. Crispatotrochus gregarius - Adult stage with three cycles of septa (= 40 septa) ......................................... C . sp. A sensu Cairns, 1982