NO. 15 RECENT CRINOIDS IN BRITISH MUSEUM — CLARK 1J 



Remarks. — This species, which is entirely distinct from C. parvi- 

 cirra, has never been properly understood. The centrodorsal is broad 

 and flat, just as in C. trichoptera, but the cirri are not so slender as 

 in that species. The brachials have rather strongly everted distal 

 ends. The division series are broad and very close together laterally. 

 The arms expand somewhat from the base to about the twelfth or 

 fourteenth brachial. The transition segment in the cirri is usually 

 not particularly marked. 



On the whole this species comes closest to C. trichoptera, but it is 

 a much smaller form with shorter and stouter arms and stouter cirri. 



Most of the specimens recorded above from False Bay have an 

 arm length of from 30 mm. to 35 mm., and a cirrus length of 7 mm. 



COMANTHUS SAMOANA A. H. Clark 



Actinometra parvicirra Brit. Mus., MS. (1). 

 Actinotnetra trochygaster Brit. Mus., MS. (2). ' 



1. A r o Locality.— One specimen with twenty arms 60 mm. long; 

 seven of the IIBr series are 2, the other three being 4 (34-4). 



2. Samoa. — Two specimens. 



Specific Group VANIA A. H. Clark 

 COMANTHUS ANNULATA (Bell) 



Actinometra annulata 1882. Bell, Proc. Zool. Soc. London, 1882, p. 535, 



pl. 35 (1). 



Actinometra parvicirra 1887. Bell, Sci. Trans. Roy. Dublin Soc. (2), vol. 3, 

 p. 645 (2, 3). — 1888. P. H. Carpenter, " Challenger " Report, Comatulse, 

 P- 338 (6, 7).— 1888. Bell, Proc. Zool. Soc. London, 1888, p. 384 (8).— 

 1894. Thurston, Madras Government Museum Bulletin, No. 1, p. 28 (8). 



Actinometra valida 1888. P. H. Carpenter, " Challenger " Reports, Comatu- 

 ke, p. 314 (4). 



Actinometra Httoralis 1888. P. H. Carpenter, " Challenger " Report, Co- 

 matuke, p. 346 (5). 



Actinometra gracilis (Lutken) Brit. Mus., MS. (13). 



1. Cape York. — Four specimens; one of these has forty arms and 

 Y11I cirri, deficient on a part of the periphery of the centrodorsal; 

 another has thirty-nine arms and IX cirri, lacking on a part of the 

 periphery of the centrodorsal ; a third specimen has thirty-nine arms 

 and cirri XII, 16-17; all of the division series with the exception of 

 one IIBr series are 4 (3 -J- 4) ; the fourth specimen is broken. 



2. Ceylon. — One specimen with forty-three arms ; seven of the 

 IIBr series are 2 and three are 4(3 + 4); the IIIBr and subsequent 

 series are all 4 (3 + 4) ; there are only very small rudiments of cirri. 



