298 U.S. NATIONAL MUSEUM BULLETIN 202 Vol. 2 



Aug. 12, 1954, R. R, Harry, 4 specimens, 17-25 mm. standard length; 

 SNHM 52014, Caroline Islands, Ifaluk Atoll, outer reef edge at surf 

 line on south side of Falalap Islet, Oct. 22, 1953, R. R. Harry, 7 

 specimens, 26.0-31.1 mm. standard length; USNM 175255, Phoenix 

 Islands, Hull Island, ocean reef, July 12-15, 1939, L. P. Schultz, 2 

 specimens, 22.5-25.8, mm. standard length; USNM 142249, Rongelap 

 Atoll, Rongelap Island, near north end, July 25, 1946, Brock, Herald 

 and Kohler, 1 specimen, 27.5 mm. standard length; USNM 142250, 

 Rongerilv Atoll, Bock Island, June 27, 1946, Schultz and Herald, 2 

 specimens, 22.5-25.8 mm. standard length. 



Additional material examined. — George VanderbUt Foundation 

 Caroline Islands Expedition, Kapingamarangi Atoll, Station 143, 

 Tihatukira region of Saratokamungeia reef flat in middle of Ship 

 Pass, Aug. 13, 1954, 1 specimicn, 29.3 mm. standard length; George 

 Vanderbilt Foundation High Island — Atoll Project, Palau Islands, 

 Station 25, lagoon edge of Barrier reef 8 miles northwest of Koror 

 island, July 19, 1955, 4 specimens, 24.0-30.4 mm. standard length; 

 George Vanderbilt Foundation High Island — Atoll Project, Palau 

 Islands, Station 232, Barrier reef 8 miles northwest of Koror Island, 

 Oct. 16, 1955, 3 specimens, 25.9-28.5 mm. standard length. 



Tabulated below are counts and measurements in millimeters made 

 on the holotypes of the two species of Helcogramma. Figm-es in 

 parentheses are the resulting proportions, expressed as thousandths 

 of the standard length. 



