NO. 15 RECENT CRINOIDS IN BRITISH MUSEUM CLARK 45 



STIREMETRA ACUTIRADIA (P. H. Carpenter) 



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

 ke, p. 113 (1). 



i. " Challenger" Station No. 275. — One specimen; this is a small 

 species ; it is well figured by Carpenter. 



STIREMETRA BREVIRADIA (P. H. Carpenter) 



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



lse, p. no (1, 2). 

 Antedon variospina Brit. Mus., MS. (2). 



"Challenger" Stations Nos. 175 (1) and 170a (2). — Four speci- 

 mens ; this species was well figured by Carpenter. 



Remarks. — One of the specimens from the second locality bears 

 the manuscript name Antedon variospina, a name which Carpenter 

 inadvertently allowed to slip into the " Challenger " report. 



Genus PARAMETRA A. H. Clark 



PARAMETRA GRANULATA A. H. Clark 



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

 lae, p. 222 (1). 



1. "Challenger" Station No. 201. — One specimen; the division 

 series and lower brachials have a prominent narrow median keel 

 which is continued along the arm and passes into the distal carina- 

 tion ; the division series and lower brachials are considerably 

 smoother than those of P. compressa, due to the absence of the 

 eversion of their proximal and distal edges. 



PARAMETRA COMPRESSA (P. H. Carpenter) 



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

 lse, p. 222 ( 1 ) . 



1. "Challenger" Station No. 192. — Two specimens; the carina- 

 tion on the earlier segments is confined to the axillaries and the sec- 

 ond brachials, and is rounded and inconspicuous ; the lower brachials 

 and the ossicles of the division series have rather strongly everted 

 edges. 



Genus CROTALOMETRA A. H. Clark 



CROTALOMETRA MAGNICIRRA (Bell) 



Antedon magnicirra 1905. Bell, Marine Investigations in South Africa, 

 vol. 4, p. 141 (1, 2). 



I. Stations Nos. 12885/6. — Six specimens ; the cirri are XV-XXV, 

 60-63 ; tne eighth or ninth is a transition segment ; the cirrus sockets 



