Boone, Echinodermata, Cruises of "Eagle" and "Ara," 1921-28 21 



Luidia Columbia (J. E. Gray). 



One specimen, Webb Cove, Albemarle Island, Galapagos Islands, 

 February 3, 1926. 

 Linckia columbiae Gray. 



One, Webb Cove, Albemarle Island, Galapagos Islands, February 

 3, 1928. 

 Heliaster multiradiatus (Gray). 



One young specimen, Webb Cove, Albemarle Island, Galapagos 

 Islands, February 3, 1928. 

 Amphiura diomedeae Lutken and Mortensen. 



Two disks with broken arms and 50 to 100 arms minus the disks, 

 dredged in 100 fms., Punta Arenas, Costa Rica, February, 1928. 

 Ophiocoma aethiops Lutken. 



Five very large specimens, collected in Webb Cove, Albemarle 

 Island, Galapagos Islands, tide-pool, February, 1928. 

 OpModerma variegatum Lutken. 



Eight specimens, from Punta Arenas, Costa Rica, February, 1928. 

 Eucidaris thouarsii (Valentin). 



Three large specimens, Hood Island, Galapagos, March, 1928. 

 Strongylocentrotus gibbosus Agassiz and DeSor. 



Six specimens, shallow water, Webb Cove, Albemarle Island, Gala- 

 pagos Islands, March, 1928. 

 Pegalothuria natatrix Ludwig. 



Three specimens, in very good condition, dredged in 300 fms., 50 

 miles S. W. off Cape Mala, Panama, Pacific Ocean, March 16, 1926, 

 by the "Ara." 

 Holothuria impatiens (Forskal). 



Two, Gardner Bay, Hood Island, Galapagos Islands, February, 

 1928. 

 Holothuria kefersteinii (Selenka). 



Ten specimens, tide-pool, Hood Island, Galapagos Islands, Febru- 

 ary, 1928. 



MEDITERRANEAN FAUNA. 



Antedon adriatica A. H. Clark. 



One specimen, dredged in 65 fms., 11 miles S. W. of Lissa Island, 

 Dalmatia, Adriatic Sea. Ten specimens, dredged in 100 fms., 9y 2 

 miles E. by S. i/ 2 S. off Cape Bon Tunis, N. Africa, July 21, 1927. 

 Echinaster sagenus (Retzius). 



One young specimen, dredged in 19 fms., 10 miles S. of Cagliari, 

 Sardinia, July 23, 1927. 



