d- larger and more robust, with from 14 to 26 (usually from 15 to 
20) arms from 100 mm. to 150 mm. lonjj'; division series and 
arm bases very rugged, the segments swollen, with prominent 
synarthrial and articular tubercles; lower pinnules stout, with the 
distal portion, or all, of the prismatic ridges on the segments 
produced into broad rounded lateral processes, giving the pinnules 
a strongly serrate profile; cirri moderately stout with 35 — 45 
(usually about 40) segments (Northern Australia to Pocock 
Island, Singapore and the Philippine Islands) . . cremi/ata^) 
a- Enlarged proximal pinnules with prominent keels on the distal border of 
the segments 
b' IIIBr series present, 4 (3 + 4); cirri with 30 — 44 (usually 35 — 40) 
segments, none of which are quite so long as broad; 20 — 25 arms 
150 mm. long; division series and first two brachials in close lateral 
apposition and laterally flattened; only the carinate processes of the 
lower segments of Pd are visible between the IIBr series (Andaman 
Islands to Java and the Malay Peninsula) philiberti') 
\y IIIBr series 2, or absent 
c^ the outer cirrus segments bear long and prominent sharp dorsal 
spines, which begin abruptly 
d' cirri very stout, all the component segments much broader than 
long; 12 — 13 arms 170 mm. to 180 mm. long; cirri XV, 30 
(Maldive Islands) flora 
d- cirri slender, or moderately stout, the longest earlier segments as 
lone as or longer than broad 
e^ 20 — 23 arms 120 mm. to 123 mm. long; brachials in the 
outer half of tlie arm oblong and very short; cirri about one 
sixth of the arm length, composed of 25 — 32 (usually 27 — 30) 
segments (German Southeast xA f r i c a , Zanzibar, and 
British Kast Africa) africana 
e- II — 13 arms 
f ^ brachials in the central and outer part of the arm exceedingly 
short and discoidal ; radials wath a row of bead-like tubercles 
along the distal border; cirri XV, 26 — 35 (usually 30—35), 
about one fourth of the arm length; P., and P., composed 
of 18 — 25 segments (souther n Japan) . . . . .. . schlegclii 
f- brachials in the central and outer part of the arm wedge- 
1) Includes Comalula dubia von Graff, 1877, AnltJon dtcifieiis and A. irrtgularis Bell, 1884, Antedon hiJenlata von Graff, 
1884, Antido,, dubia P. H. Carpenter, 1888, and Caspcdometra aliena A. H. Clark, 1909, with ihe exception of the ten armed specimens 
mentioned in the description of the last named. 
This species has usually been recorded as Antedon (or Amphiiiuira) variifinna, but it is not AnUdon variipitwa V. H. Carpenter, 1882. 
2) Includes Amphinulra morlenseni A. H. Clark, 1909. 
