64 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 6l 



HATHROMETRA SARSII (Diiben and Koren) 



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



p. 169 (1). 

 Antedon sarsii Brit. Mus., MS. (1). 



I. Shetland. — Two specimens. 



Genus TRICHOMETRA A. H. Clark 



TRICHOMETRA ?DELICATA A. H. Clark 



Antedon altcrnata 1888. P. H. Carpenter, "' Challenger " Report, Comatulse, 

 p. 179, pi. 32, fig. 6 (1). 



I. "Challenger" Station No. 218. — One specimen; this example 

 undoubtedly belongs to some species of the genus Trichometra, 

 probably to T. delicata. 



Genus ISOMETRA A. H. Clark 



ISOMETRA ANGUSTIPINNA (P. H. Carpenter) 



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



p. 183 (1). 

 Antedon angustipinna 1888. P. H. Carpenter, T. c, p. 189 (2). 



1. "Challenger" Station No. 320. — One specimen. 



2. " Challenger " Station No. 320. — One specimen. 

 Remarks. — This is a small and delicate species. 



Subfamily Thysanometrin.e A. H. Clark 



Genus THYSANOMETRA A. H. Clark 



THYSANOMETRA TENUICIRRA (P. H. Carpenter) 



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



lae, p. 186 (1). 

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



p. 187 (in text), pi. 33, figs. 4, 5 (2). 



1. "Challenger" Station No. 219. — One specimen; this species is 

 closely related to Th. tenelloides, but it is a smaller form with longer 

 brachials which are not so nearly oblong ; there is the same short 

 segmented T > 1 ; P 2 and P 3 are large and stiffened ; P, is slightly larger 

 and longer than P. ; P 4 is smaller than P. 2 and P 3 . 



2. "Challenger" Station No. 219. — One specimen, smaller than 

 the preceding ; there are fifteen cirrus segments, of which the proxi- 

 mal are very long ; P x is short with comparatively few long segments : 

 P, and P, are large. 



