. Bulletin - United States National Museum. Science. 356 NATIONAL MUSEUM BULLETIN 2 02 Vol. 2 Color in alcohol.—Body and head of males plain light brownish to tan, with dorsal, anal, and caudal fin dusky to blackish; caudal fin white edged distally; dorsal fin with light or white streaks distally; sides sometimes with traces of 7 or 8 vertical darldsh bars, sometimes traces of 2 lengthwise dark lines about opposite tip of pectoral fin: sides with 2 or 3 rows of small pale-centered spots edged with dark, spaced as part of vertical bars; pectoral fin unspotted; just behind and at upper edge
. Bulletin - United States National Museum. Science. 356 NATIONAL MUSEUM BULLETIN 2 02 Vol. 2 Color in alcohol.—Body and head of males plain light brownish to tan, with dorsal, anal, and caudal fin dusky to blackish; caudal fin white edged distally; dorsal fin with light or white streaks distally; sides sometimes with traces of 7 or 8 vertical darldsh bars, sometimes traces of 2 lengthwise dark lines about opposite tip of pectoral fin: sides with 2 or 3 rows of small pale-centered spots edged with dark, spaced as part of vertical bars; pectoral fin unspotted; just behind and at upper edge of eye a very small dark spot, another behind lower edge of eye, both may be pale centered with dark edges, in upper part of opercle another small dark spot, all three of these rather tiny spots persistent in appearance but somewhat indistinct. Background color- ation of females light tan, with 4 lengthwise black lines on sides be- ginning about opposite tip of pectoral fin and breaking up into black dots posteriorly; the upper 3 lines are on middle of sides, evenly spaced, whereas the most ventral black line is more widely spaced and runs along lower part of side; dorsal and caudal fins distinctly barred with small black spots; anal fin dusky distally, with a row of spots or transverse dark line basally. Peritoneum blackish and edge of lower lip dusky in both sexes. Ecology.—This species was taken in shallow rocky tidal pools left during low tide. Remarks.—Day described this species as Salarias andamensis, S. andamanensis and S. striolatus; Gunther as S. Figure 123.—Istihlennius afilinuchalis, new species, holotype, USNM 115421, from Hull Island. Drawn by Dorothea B. Schultz. ISTIBLENNIUS AFILINUCHALIS. new species Figure 123 Salarias gibbifrons, Schultz, U. S. Nat. Mus. Bull. 180, p. 284, 1943 (Enderbury, Hull, and Swains Islands). Holotype.—VSNM 115421, Hull Island, channel, July 7-17, 1939, Schultz, standard length 88 mm., male. Paratypes.—VSNM
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