202 ACTINOMETRA JAI'ONICA. 



the axillary a syzygy ; aud iu tliree others there are only 

 two joiuts , the axillary not a syzygy , the remaining one 

 being broken away. The secondary arms (when present) 

 consist of three palmar joints , the axillary a syzygy. The first 

 pair of joints beyond each axillary are closely united laterally. 



The pinnules borne by the second joints after each axil- 

 lary are enormously large aud stout ; so much so , that 

 the joints bearing them have almost the appearance of 

 being axillaries themselves. Each pinnule contains 20 -h 

 massive joints, the ventral edges of which are produced 

 so as to stand up as plates sloping slightly inwards to- 

 wards the ambulacral groove. Disc lost. 



Colour, light brownish white. Diameter of centrodor- 

 sal, 7 ni.m. ; total diameter between palmar axillaries, 

 25 mm. 



LocoUty. The Moluccas. Coll. Macklot. 



Remarks. Although no traces remain either of the disc 

 or of a terminal comb on the oral pinnules , the flatten- 

 ed cal^x and the wide funnel in the centre of the radial 

 pentagon indicate the generic position of this specimen 

 which is markedly different from most species of Actino- 

 metra that I have seen. 



15. Jlvtinotnetvfê Jnponioa , Mus. Leyd. sp. 



1841. Alecto japonica, Muller. Monatsber. d. Berlin. Akad. 

 1841. p. 18Ö. Wiegm. Arcliiv. 1841. p. 145. 



1849. Comatula japonica , Muller. Abhandl. d. Berlin. 

 Akad. 1849. p. 260. 



1862. Comatula japonica , Dujardin. Hist. Nat. des Zoo- 

 phytes. Echinodermes , p. 205. 



Description of an individual. 



Centrodorsal wide , discoidal , slightly hollowed in the 

 centre, and concealing the greater part of the radials. 

 About 50 cirrhi of some 20 joints, of which the third is 

 longer than wide and the fifth the longest. The following 

 ones decrease slowly in length , the terminal ones being 



Notes irom the Leydoii M^useuni , "Vol. III. 



