56 IOWA STUDIES IN NATURAL HISTORY 



Antigua; English. Harbour; rocks. — Fifteen specimens. 

 Antigua; English Harbour. — Ten specimens. 



OpJiiocoma riisei Liitken 



Station 1 : Five specimens. 



Station 96: Two specimens; one of these, small and without 

 granules on the disc, was kindly identified for me by Dr. H. L. 

 Clark. 



Station 100 : Three specimens. 



Station 101 : Five specimens. 



Antigua ; English Harbour ; rocks. — Seven small specimens. 



Antigua; English Harbour. — Seven specimens. 



Antigua ; Falmouth Harbour. — One specimen which in life was 

 ''deep reddish brown." 



No label. — One specimen. 



Ophiopsila hartmeyeri Koehler 



Station 53: One specimen. 



Station 96: One specimen. 



Family Ophiodermatldae 



Ophioderma appressa (Say) 



Station 11 : One small specimen. 



Barbados; Pelican Island; tide pools; May 11, 1918. — Two 

 specimens. 



Barbados; Pelican Island, — Ten specimens. 



Barbados; off Needham's Point; June 6, 1918. — Four speci- 

 mens. 



Station 101 : Three specimens. 



Station 103 : Five specimens. 



Station 104 : Two specimens. 



Antigua; English Harbour; in eel grass. — Sixteen specimens. 



Antigua; English Harbour. — Sixteen specimens. 



Antigua ; Falmouth Harbour ; in eel grass ; collected by W. K. 

 Fisher. — Eighteen specimens. 



Ophioderma hrevicauda (Say) 



Barbados ; Pelican Island ; tide pools. — Six specimens. 



Barbados; Pelican Island. — Seventeen specimens. 



Barbados; off Needham's Point; June 8, 1918. — One specimen, 



Antigua ; English Harbour, — Nine specimens. 



