88 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 105 



Type material :USNM 62279, Icf (holotype), 19 (allotype), and Icf 

 (paratype with damaged parameres) ex Forster's tern {Sterna forsteri 

 Nuttall), Louisiana, Northshores, F. M. Carroll, coll. (USNM, 

 Bishopp No. 30439). 



Paratypes as follows, all from the type host: 2 cf cf and 19, Virginia, 

 Wachapreague, M. B. Trautman, coll. (HSP) ; 1 cf and 19, South 

 Carolina, Georgetown, H. S. Peters, coll. (HSP) ; 1 cf and 399, Florida, 

 Pmellas County, W. G. Fargo, coll. (USNM, Bishopp No. 15604); 

 599, Florida, Pass-a-Grille, W. G. Fargo, coll (USNM, Bishopp No. 

 15605); Icf, Louisiana, Grand Bayou (CU); Icf (damaged) and 19, 

 New York, Long Island, Orient (CU). 



Saemundssonia laticaudata (Rudow) 



Docophorus laticaudatus Rudow, 1869, p. 12. Host: (Sterna cantiaca= Thalasseus 

 s. sandvicensis (Latham). 



Docophorus melanocephalus Kellogg, 1896, p. 99, pi. 4, fig. 6 (part) [nee Bur- 

 meister]. Host: Sterna maxiina= Thalasseus m. maximus (Boddaert). 



Philopterus melanocephalus Peters, 1936, p. 17 (part) [nee Burmeister]. Host: 

 Thalasseus m. maximus (Boddaert). 



Saemundssonia laticaudata (Rudow), Clay, 1949, p. 14, figs. 7, 18, 26, 27. Hosts: 

 T. s. sandvicensis (Latham), T. bengalensis par (Mathews and Iredale), T. 

 bergi velox (Cretzschmar), T. b. bergi (Lichtenstein), T. m. maximus (Bod- 

 daert), and T. eurygnatha (Saunders). 



Thirty specimens have been studied from Thalasseus m. maximus 

 (Boddaert), and cannot be separated by any criteria from the material 

 described by Clay. However, material from T. sandvicensis acu- 

 flavidus (Cabot) proves to be distinct from that on T. s. sandvicensis 

 (Latham), and is redescribed as the species next discussed, S. brevi- 

 cornis (Giebel). 



Material examined: Icf and 19 ex Thalasseus bergi velox (Cretz- 

 schmar), Red Sea (T. Clay, det.) (AMNH); 19 ex T. bergi cristatus 

 (Stephens), Solomon Islands, Guadalcanal, W. J. Beecher, coll. 

 (CNHM). 



The following lots are all from the royal tern (T. m. maximus 

 (Boddaert)): 4crcf and 499, Georgia, Isle of Hope, I. R. Tompkins, 

 coll. (USNM, Bishopp No. 19614); 1 d" and 299, South Carolina, Cape 

 Island, G. R. Lunz, Jr., coll. (USNM and HSP, Bishopp Nos. 20413 

 and 20419); Icf and 19, Louisiana, New Orleans, F. M. Carroll, coll. 

 (USNM, Bishopp No. 20378); 19, Florida, Pass-a-Grille, W. G. 

 Fargo, coll. (USNM, Bishopp No. 8247); 399, Florida, 5 miles west of 

 Clearwater, R. B. Fischer, coll.; Icf and 1399, California, Pacific 

 Grove (SNHM, Kellogg Nos. 53a and 2060); 5cf cf and 299, Cali- 

 fornia, Bay of Monterey (SNHM, Kellogg No. 50, and CU, Kellogg 

 No. 65). 



