308 Austin Hobaet Clark, 



Localities: Houtmans Abrollios, W.A. (Mus. Perth). 



Two specimens; one has the anterior arins 120 mm long and the pos- 

 terior arms 60 mm long; the cirri are VIII, 14 — 15, of the stout type 

 though the arms are only very slightly broadened; the color is a very light 

 brown, the centrodorsal and most of the IBr series rose pink: the other 

 diflfers only in having the cirri slightly more slender, XIII. 



Stat. 23, Sharks Bay, South Passage, 9 m; 16. VI. 05. 



One specimeu with the anterior arms 70 mm long; the cirri are IX 

 (one unpaired), robust. 



Subfam. Comasterinae A. H. Clark. 



Comaster belli (P. H. Carpenter). 



1911. Comaster typica (part), A. H. Clark, in : Die Fauna Südwest- Australiens, III, p. 453 

 (3 specimens from Port Hedland, W.A.). 



1912. Comaster belli, A. H. Clark, in : ömithson. Collect., LX, No. 10, p. 6. 



Localities: NW. Australia, Broome on Roebuck Bay; Gale 

 leg. VII. 05. 



Two medium sized specimens ; one has seventy-three arms 135 mm long, 

 and cirri XVII, 11 mm long; there are a few scattered small nodules on 

 the disk ; the color is grayish brown : the other has sixty-eight arms 125 mm 

 long, and cirri XIV ; the disk is thickly studded with small calcareous 

 nodules; the color is bright yellow green, the centrodorsal and cirri light 

 slaty. 



W. Australia, Houtmans Abrolhos (Mus. Perth). 



One small specimen with seventy-three arms about 85 mm long; the 

 cirri are VI, 14—16, 10 mm to 12 mm long. 



Notes : The three small specimens from Port Hedland which I refer- 

 red to Comaster typica in my first report upon the Crinoids collected by 

 the Hamburg West Australian Expedition are undoubtedly representatives 

 of this species. 



Comaster helli is a very curious form ; large specimens are in super- 

 ficial appearance strikingly like similarly large specimens of Comanthina 

 schlegelii, both species agreeing in possessing a unique type of arm divi- 

 sion. Carpenter placed the two forms side by side in his "Parvicirra 

 Group" of Actinometra, and heretofore I have followed him in keeping 

 them close together. The terminal combs of Comaster helli and the arm 

 division beyond the IIIBr series, however, are of the type typical of Com- 

 aster, and I find that, taking all the characters together, the smaller the 

 individual the greater the resemblance to other species of Comaster, and 

 the greater the difference from similar small specimens of Comanthina 



