NO. 15 RECENT CRINOIDS IN BRITISH MUSEUM — CLARK 3 1 



DICHROMETRA AFRA A. H. Clark 



i. Zanzibar. — Two small specimens. 



Genus LIPAROMETRA A. H. Clark 



LIPAROMETRA ARTICULATA (J. Miiller) 



Antedon articulata 1884. Bell, "Alert" Report, p. 160 (1). 

 Antedon regince 1884. Bell, "Alert" Report, p. 160 (2). 



i. Port Molle, Queensland; 12-20 fathoms; rock; "Alert." — One 

 specimen. 



2. Port Molle, Queensland; 12-20 fathoms; rock; "Alert." — One 

 specimen ; the cirri are about XXV, 29, 30, 32, 34 ; the longest cirrus 

 segments are about as long as broad, and the distal are about one- 

 third broader than long; stout, though not long, dorsal spines are 

 developed from the thirteenth or fifteenth onward ; as a whole the 

 cirri are moderately stout. 



The thirty-eight arms are about 100 mm. long. 



P x is 14 mm. long ; P 2 is about 22 mm. long, very slender and deli- 

 cate, flagellate, soft and not stiffened, with forty-three segments 

 which are only slightly longer than broad ; P 3 is similar to P 2 , but 

 the following pinnules are shorter ; P 4 is 10 mm. long. There is but a 

 slight difference in basal stoutness between the earlier pinnules, but 

 P 2 and P 3 taper much less rapidly than the others. 



LIPAROMETRA REGALIS (P. H. Carpenter) 



Antedon regalis 1888. P. H. Carpenter, " Challenger " Report, Comatulae, 

 P- 237 (1). 



I. Tongatabu Reefs; "Challenger." — One specimen; this species 

 is much like the Japanese L. grand is, but it is a smaller and in every 

 way more delicate form ; there are no distal cirrus spines. The figure 

 given of it in the " Challenger " report is excellent. 



Genus LAMPROMETRA A. H. Clark 

 LAMPROMETRA PROTECTUS (Liitken) 



Antedon conjnngens 1888. P. H. Carpenter, " Challenger " Report, Comatu- 



L-e, p. 233 ( 1 ) . 

 Antedon similis 1888. P. H. Carpenter, T. c, p. 235 (2). 

 Antedon occulta 1888. P. H. Carpenter, T. c, p. 236 (3). 

 Antedon palmata 1888. Bell, Proc. Zool. Soc. London, 1888, pp. 384, 387 



(4)- — 1894. Thurston, Madras Government Museum Bulletin, No. I, 



pp.28 (4), 53 (?); No. 2, pp. 106 (?), 114 (?). 

 Antedon indica 1899. Bell, Willey's Zoological Results, vol. 2, p. 133 (5). 

 Antedon ccquipinna Brit. Mus., MS. (6). 

 Antedon proiectus Brit. Mus.. MS. (7). 



