Crispatotrochus Tenison Woods 1879
Creators: name: Kitahara, Marcelo V.
name: Cairns, Stephen D.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Anthozoa
Scleractinia
Caryophylliidae
Crispatotrochus

description: 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
description: Published as part of Kitahara, Marcelo V. & Cairns, Stephen D., 2008, New records of the genus Crispatotrochus (Scleractinia; Caryophylliidae) from New Caledonia, with description of a new species, pp. 59-68 in Zootaxa 1940 (1) on pages 62-63, DOI: 10.11646/zootaxa.1940.1.6, http://zenodo.org/record/5230999