27 



b 2 anterior arms not more than 65 mm. long (Burma to the Andaman 



and Lesser Sunda Islands) micraster 



Cirri present 



b 1 16 — 25 (usually about 20) cirrus segments (northern Australia to 

 western Java, Singapore, Hong Kong and the P hilippine 



Islands) solaris 



c 1 the arms are very stout and flat dorsally, increasing in lateral diameter 

 to the twelfth-fourteenth brachials and tapering distally from that point 



onward (northern Australia) var. solaris 



C the arms are slender and well rounded dorsally, not increasing appre- 

 ciably in diameter from the base (northern Australia to west- 

 ern Java, Singapore, Hong Kong and the Philippine Is- 

 lands) var. hamata 



b a fewer than 1 6 cirrus segments 



c 1 the cirri are distributed, regularly or irregularly, all around the peri- 

 phery of the centrodorsal, without segregation in the interradial angles 

 (Baud in I si and, Western Australia, and New South Wales 



to Singapore and the Philippine Islands) pectinata Y ) 



c 3 the cirri are segregated in the interradial angles of the centrodorsal, 

 where they occur singly or in pairs 



d 1 the longest cirrus segments are not much, if at all, longer than 

 broad (western and northern Australia to the Philip- 

 pine Islands) pur pur ca 



d 2 the longest cirrus segments are twice as long as broad (Java Sea) tcnuicirra 





1. Comatul a (Comatula) micraster A. H. Clark. 



A. H. Clark. Crinoids of the Indian Ocean, 1912, p. Si, fig. 2, pp. 82, 315. 

 Stat. 33. Bay of Pidjot, Lombok. Up to 22 Metres. 1 Ex. 

 This is a typical specimen; on the label is written "killed in fresh water." 



2. Coma t 'itla (Comatula) purpurea (J. Muller). 



J. MULLER. Archiv für Naturgesch., 1843, I, p. 132 (Alecto purpurea). 



A. H. Clark. Proc. Biol. Soc. Washington, vol. 23, 1910, pp. 95 — 98, fig. p. 97. 



Buil. du Mus. d'hist. nat., Paris, 1911, N° 4. p. 247. 



— ■ — Recent Crinoids of Australia, 191 1, p. 746. 



Crinoids of the Indian Ocean, 1912, p. Si. 



Smithsonian Miscellaneous Collections, vol. 60, 1912, N° 10, p. 5. 



Proc. U. S. Nat. Mus., vol. 43, 19 12, p. 3S9. 



REICHENSPERGLR. Abhandl. der Senck. naturforsch. Ges., vol. 35, 19 13, part 1, p. 86. 

 A. H. CLARK. Smithsonian Miscellaneous Collections, vol. 61, 1913, N° 15, p. 9. 

 Records of the Western Australian Museum, vol. 1, 19 14, part 3, p. 120. 



1) Synonyms Comatula cumingii J. Muller and Aclinometra affinis Lütken. 



