154 Bulletin American Museum of Natural History [Vol. XLVI1I 



Ophiernus polyporus Liitken and Mortensen 

 Ophiernus polyporus Lutken and Mortensen, 1899, Mem. Mus. Comp. Zool., 

 XXIII, p. 109. 



An additional specimen, 13 mm. across the disk, from Station 5682 

 throws no light on the question of the validity of this species. 



Ophiomusium glabrum Lutken and Mortensen 

 Ophiomusium glabrum Lutken and Mortensen, 1899, Mem. Mus. Comp. 

 Zool., XXIII, p. 132. 



There are five additional specimens from Station 5689. They are 

 about 30 mm. across the disk and the arms are about 165 mm. long. 



Ophiomusium jolliense McClendon 

 Ophiomusium jolliense McClendon, 1909, Univ. of California Publ., Zool., 

 VI, No. 3, p. 36. 



There is a typical example of this species, 7 mm. across the disk, in 

 the present collection, but it was not represented in the material reported 

 on previously. 



Station 5682. Off Cape St. Lucas, Lower California, 491 fms. 

 Bottom Temp. 40.8°. 



One specimen. 



Ophiomusium lymani Wyville Thomson 

 Ophiomusium lymani Wyville Thomson, 1873, 'The Depths of the Sea,' p. 172. 

 One of the 18 additional specimens now at hand from Station 5689 

 is larger than any in the earlier collection, measuring 32 mm. across the 

 disk, while the others are from 13 mm. up. 



Amphiura diomedeae Lutken and Mortensen 

 Amphiura diomedese Lutken and Mortensen, 1899, Mem. Mus. Comp. Zool., 

 XXIII, p. 151. 



An additional, well-preserved specimen from Station 5694 has the 

 disk 15 mm. across and the arms about 180 mm. long. 



Amphipholis squamata (Delle Chiaje) 

 Asterias squamata Delle Chiaje, 1828, 'Mem. Anim. s. Vert.,' Ill, p. 74, Napoli. 

 Amphipholis squamata Verrill, 1899, Trans. Connecticut Acad. Sci., X, p. 

 312. 



A tiny brittle-star with disk about 2 mm. across is evidently an 

 Amphipholis but shows no characters by which it can be distinguished 

 from the ubiquitous species of Europe and eastern North America. Of 

 course, were it full grown, it might show distinctive characters, but, as it 



