A. H. CLARK: THE CRINOIDS OF THE INDIAN OCEAM. 81 



Malay Archipelago ; 160 fathoms. — One specimen witli ten arms 9(i mm. long, 

 rather strongly swollen basally. 



Southern portion of the Straits of Malacca. — Two specimens ; the larger has 

 the cirri 15 mm. long with 15-17 segments; neither have the arms swollen 

 basally. 



All of these examples agree with others at hand from Singapore, Java and 

 the Philippine Islands. 



Other Records. — "Indian Seas"; "Australia"; Arafura Sea: Prince of 

 Wales Channel ; Fitzroy Island, Port Molle, Port Curtis and Cooktown, Queens- 

 land ; Port Jackson ; Cape York ; Dundas Strait ; Torres Strait ; Thursday 

 Island ; north Celebes ; Banka ; Banka Strait ; Billiton ; Java ; Singapore ; 

 Malacca ; Sunda Islands ; Amboina ; Ternate ; Moluccas ; Zamboanga ; Bohol ; 

 Philippine Islands ; 14° 50' S. lat., 125° 40' E. long.: north-western Australia; 

 Baudin Island; Holothuria Bank ; Bassett-Smith Bank. 



Depth. — Littoral, and down to 160 fathoms. 



Remarks.— A critical examination of the type of Miiller'.< Comatula cumin- 

 gii, preserved in the Museum fiir Naturkunde at Berlin, has shown that it is 

 nothing more than a small and immature specimen of Gomatnla pectinata. 



The specimen of Actinometra brachiolata in the collection of the Leyden 

 .Museum described by Hartlaub is in reality an example of this .species. 



COMATULA PURPUREA. 



Alecto purpurea 1843. J. MItller, Archiv fiir Naturgesch., 1843, i, p. 132. 

 Comatula purpurea 1910. A. H. Clark, Proc. Biol. Soc. Washington, vol. 23, 



pp. 95-98, fig. p. 97. 



Habitat. — Dundas Strait, north-western Australia: Northern Austi'alia ; 

 Port MoUe and Port Denison, Queensland ; Dimes Island. New Guinea. 



Depth. — Littoral, and down to 36 fathoms. 



COMATULA MICRASTER. 



Comatula micraster 1909. A. H. Clark, Proc. Biol. Soc. Washington, vol. 22, 



p. 143. 



Description. — Centrodorsal rounded pentagonal, flush with, or very slightly 

 raised above, the dorsal surface of the radials, witliout cirri. 



Radials short, trapezoidal, four or five times as broad as long ; IBr, and 

 IBr.j united by pseudosyzygy,' the pseudosyzygial pair being about twice as 

 board as long; IBr, almost entirely, or quite, united laterally ; IBr.^ free laterally. 



Ten arms 50 mm. to 65 mm. long, resembling, witii the pinnules, those of 

 C. pectinata. 



The colour in spirits is white or light purple. 



' cf. Proc. Biol. Soc. \\ashington, vol. 22, p. 1?:'. 



