ACTINOMETRA NOVAE GUINEAE. i 98 



pears to be the one brought from Cape Bantano by Sal- 

 omon Muller, and figured in the »Echinodermes peintes 

 d'après nature" as Coi7iatula (Artinometra?) hamata. Kuhl 

 and van Hasselt. The ij^e is a very variable one, how- 

 ever , and this specimen does not appear to be sufficiently 

 distinct from Lamarck's original specimen in the Paris Mus- 

 eum to justify the establishment of an other species. 



12. Aciinotnetfa JXfovae Guineae , Mus. Leyd. sp. 



1841. Alecio Novae Guineae, , Muller. Monatsber. d. Ber- 

 lin. Akad. 1841. p. 186. Wiegm. Archiv. 1841. 

 1. p. 146. 



1849. Comatula Novae (rwmeag , Muller. Abhandl. d. Ber- 

 lin. Akad. 1849. p. 264 



1862. Comatula Novae Guineae , Dujardin. Hist. Nat. des 

 Zoophytes. Echinodermes. p. 208. 



Description of an individual. 



Centrodorsal a thin pentagonal disc , with its angles 

 slightly produced and about 15 cirrhus-sockets on its slop- 

 ing sides. Cirrhi all lost. Traces of clefts appear between 

 the sides of the centrodorsal and the inner margins of the 

 short first radials. Second radials shorter than the first, 

 widely hexagonal , and only partly united laterally. 



Axillaries free , pentagonal , barely two and a half times 

 the length of the second , to which they are united 

 by syzygy. Rays quite free laterally, dividing four or five 

 times. Primary arms of three distichal joints, the axill- 

 ary a syzygial or double joint. In subsequent divisions 

 every second joint is an axillary united by syzygy to its 

 predecessor, which is only partly united laterally with its 

 fellow. 56 arms First brachial a syzygy, oblong or nearly 

 square ; the second usually simple , but sometimes a syzygy. 

 Tlie next two or three joints are transversely oblong, and 

 their immediate successors longer , wedgeshaped , and slightly 

 overlapping. After this both length and breadth diminish 

 and tlie joints gradually become blunter and smoother, 



Notes from tlie Tjeytlen Museum, Vol. ITI. 



