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U.S. NATIONAL MUSEUM BULLETIN 2 02 



Vol. 3 



Yugui Island, ocean reef, July 31, S-46-304, Herald, 1 specimen, 

 59 mm.; USNM 141012, Rongelap Atoll, Lomuilal Island, Aug. 1, 

 8^6-306, Herald, 1 specimen, 48 mm.; USNM 141022, Eniwetok 

 Atoll, Rigili Island, lagoon. May 30, S-46-189, Schultz, 1 specimen, 

 129 mm.; USNM 141023, Rongerilv Atoll, Bock Island, ocean reef, 

 June 27, S-46-237, Schultz and Herald, 6 specimens. 111 to 129 mm.; 

 USNM 99652, Philippine Islands, 7 miles off Nagubat Island, 9°43' N., 

 125°48'15" E., 44 fathoms, Albatross, May 9, 1908, 1 specimen, 

 158 mm. 



Figure 146. — Thysanophrys chiltonae, new species, holotype, USNM 141009, from Rongelap 

 Atoll. Drawn by Dorothea B, Schultz. 



Figure 147. — A sketch of the cranial spines of Thysanophrys chiltonae, new species, paratype, 

 USNM 141023, HU, humeral; lOR, interorbital ridge; NA, nasal; POC, preocular; POR, 

 preorbital; PTER, pterotic; PTT, posttemporal; SPH, sphenotic. See figure 145 for 

 names of other spines. 



Description. — The following counts are recorded for the holotype: 

 Dorsal I,VIII-12; anal 11; pectoral ii,14,v-i,14,v; pelvic 1,5-1,5; 

 oblique rows of scales above lateral line corresponding to number of 

 pores on lateral line 53; vertical rows of scales below lateral line 80; 

 developed gill rakers on first arch 1 + 1+4; branched caudal fin rays 

 4+5; scales from spiny dorsal origin to lateral line 5% or 6 and soft 



