no. 1808. RECENT AFRICAN CRINOIDS— CLARK. 43 



Subfamily PEROMETRIN^G. 

 Genus PEROMETRA A. H. Clark. 



PEROMETRA AFRA, new species. 



Description. — Centrodorsal rounded-conical, the dorsal pole papil- 

 lose, resembling closely the centrodorsal of P. diomedese of Japan. 



Articular radial faces almost exactly as in P. diomedese; relation of 

 radials to centrodorsal as in P. diomedese. 



Cirri long and slender, resembling those of P. diomedese, 25 mm. to 

 30 mm. long, decreasing somewhat in length towaid the dorsal pole, 

 with 44-52 segments. 



Eleven to fourteen arms 50 mm. long; the proximal arm structure, 

 the flattening of the rays, and the synarthrial tubercles are exactly as 

 in P. diomedese, except that the synarthrial tubercles are not so long, 

 being more like those of P. pusilla; the IIBr series are 2. 



The lower pinnules are exceedingly slender, with greatly elongated 

 segments; P 3 is the longest, followed by P 2 , P lt and P 4 ; P 5 and the 

 following pinnules are short. 



The color is purple, the cirri lighter. 



Locality. — Providence Island, northeast of Madagascar; the type, 

 which is in the British Museum, was collected by the Sea Lark expe- 

 dition under Prof. J. Stanley Gardiner. 



Depth. — 125 fathoms. 



Subfamily ^EINTOMETRITsTJE:. 



Genus LEPTOMETRA A. H. Clark. 



LEPTOMETRA CELTICA (Barrett and McAndrew). 



Comatula ivoodivardii Barrett, Ann. and Mag. Nat. Hist., (2) vol. 19, 1857, p. 33, 



pi. 7, fig. 1 (not of Forbes, 1852). 

 Comatula cellica Barrett and McAndrew, Ann. and Mag. Nat. Hist. (2), vol. 20, 



1858, p. 44. 

 Antedon mediterraneus (part) Wyville Thomson, Proc. Roy. Soc. Edinburgh, 



vol. 7, 1872, p. 765. 

 Antedon phalangium (not of Miiller) P. H. Carpenter, Zool. Anzeiger, Jahrg. 4, 



1881, p. 521 (part); Proc. Roy. Soc. Edinburgh, vol. 12,1884, p. 361 (part); 



Challenger Reports, vol.26, Zoology, 1888, p. 159 (part); Journ. Linn. Soc. 



(Zool.), vol. 24, 1892, p. 67. 

 Leptometra celtica A. H. Clark, Proc. Biol. Soc. Washington, vol. 21, 1908, p. 129. 

 Antedon (Leptometra) phalangium Kcehler and Vaney, Bull, du mus. d'hist. 



nat., 1910, No. 1, p. 32. 



Localities. — Seine Bank (between Madeira and Morocco) ; near the 

 Seine Bank (lat. 33° 47' N., long., 14° 21' W.); near the Gorringe 

 Bank (west of the Straits of Gibraltar) (lat. 36° 30' 30" N.; long. 11° 

 36' 15" W.; and lat. 36° 31' N.; long. 11° 32' W.) ; off Madeira; 

 Funchal Bay, Madeira; south of Cape St. Vincent (lat. 36° 20' N.; 



