NO. 15 RECENT CRINOIDS IN BRITISH MUSEUM CLARK 47 



THALASSOMETRA MULTISPINA (P. H. Carpenter) 



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

 lae, p. 248 (1,2). 



1. "Challenger" Station No. 344. — Two specimens and one pen- 

 tacrinoid young ; the spines covering the animal are exceptionally 

 fine. 



2. " Challenger " Station No. 135. — One broken specimen. 



THALASSOMETRA BISPINOSA (P. H. Carpenter) 



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

 lse, p. 115 (1). 



i. "Challenger" Station No. 147. — One specimen; this is a well 

 developed and comparatively large species. 



Genus AGLAOMETRA A. H. Clark 



AGLAOMETRA VALIDA (P. H. Carpenter) 



Antedon valida 1888. P. H. Carpenter, "Challenger" Report, Comatulse, 

 p. 104 (1). 



I. "Challenger" Station No. 214. — Two specimens; this is a 

 large species, resembling in a general way A. eupedata; the anterior 

 edges of the radials and the lateral edges of the IBr series and first 

 two brachials are conspicuously dentate with fine well separated 

 teeth. 



AGLAOMETRA INCERTA (P. H. Carpenter) 



Antedon incerta 1888. P. H. Carpenter, " Challenger " Report, Comatulse, 

 p. 106 (1). 



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

 large, robust species ; the edges of the ossicles of the IBr series are 

 spinous ; the synarthrial tubercles resemble those of certain species 

 of Psathyrometra. 



Family CHARITOMETRID^ A. H. Clark 



Genus PACHYLOMETRA A. H. Clark 



PACHYLOMETRA ANGUSTICALYX (P. H. Carpenter) 



Antedon angusticalyx 1888. P. H. Carpenter, "Challenger" Report, Co- 

 matulse, p. 242 (1). 



I. "Challenger" Station No. 214. — Five small specimens. 



