FAMILY PLATYCEPHALIDAE — SCHULTZ 57 



illustrated in figure 145 of this species; first dorsal spine scarcely 

 connected with second, and contained 4% to 5% times in second. 



Color in alcohol. — Background pale or whitish, somewhat mottled 

 or blotched with light brown and sometimes with white blotches; 

 fins barred or marked with brown specks; ventrally plain whitish; the 

 usual 4 or 5 brownish cross bars on dorsal surface may be present or 

 absent. 



Color when alive. — Background color whitish; dark markings red- 

 dish brown. 



Remarks. — This new species differs from all other species referred 

 to the genus Thysanophrys in having a row of short papillae along 

 edges of lips. 



Named papillolabium in reference to the papillae on the lips, 



THYSANOPHRYS CHILTONAE, new species 



Figures 146, 147 



Holotype.—VSl^M 141009, Rongelap Atoll, Rongelap Island, 

 near north end, lagoon coral head, depth 18 feet, July 25, S-46-286, 

 Brock, Herald, and Kohler, standard length 142 mm. 



Parahjpes.—VSNM 141017, Bikini Atoll, Enyu Island, lagoon 

 channel reef. Mar. 6, S-46-8, Schultz, Brock, and Marr, 2 specimens, 

 30 to 77 mm.; USNM 141018, Bikini Atoll, Erik Island, ocean reef. 

 Mar. 19, S-46-9, Schultz and Brock, 1 specimen, 91 mm.; USNM 

 141021, Bikini Atoll, Romuk Island, ocean reef, Apr. 1, S-46^7, 

 Schultz, 1 specunen, 79 mm.; USNM 141019, Bikini Atoll, Urochi 

 Island, ocean reef, July 13, S-46-251, Herald, 1 specimen, 100 mm.; 

 USNM 141020, Bikini Atoll, Bikini Island, ocean reef, July 16, 

 8^6-253, Herald, 1 specimen, 102 mm.; USNM 141015, Bikini 

 Atoll, one-fourth mile off Amen Island, lagoon, depth 30 feet, Aug. 4, 

 S^6-307, Herald and Brock, 3 specimens, 26 to 66 mm.; USNM 

 141016, Bikini Atoll, Arji Island, lagoon, depth 20 to 40 feet, Aug. 7, 

 S-46-308, Brock and Herald, 2 specimens, 53 to 57 mm.; USNM 

 141014, Bikini Atoll, Reere Island, lagoon reef, Aug. 12, S-46-332, 

 Herald and Brock, 2 specimens, 65 to 85 mm.; USNM 141024, 

 Bikini Atoll, lagoon reef, halfway between Bikini and Amen Islands, 

 July 21, 1947, S-46-442, Brock, Hiatt, and Schultz, 1 specimen, 

 86 mm.; USNM 141013, Rongelap Atoll, channel between Eniaetok 

 and Erapuotsu Island, July 20, S-46-267, Herald and Brock, 2 

 specimens, 53 and 110 mm.; USNM 141010, Rongelap Atoll, Rongelap 

 Island, lagoon coral head, depth 18 feet, July 25, S-46-286, Brock, 

 Herald, and Kohler, 11 specimens, 36 to 143 mm. taken with the 

 holotype; USNM 112394, Rongelap Atoll, Naen Island, July 30, 

 S-46-302, 1 specimen, 91 mm.; USNM 141011, Rongelap Atoll, 



748-328 — 66 — —5 



