Acanthosphex leurynnis, FRLM 30683, 1.5 cm SL
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Acanthosphex leurynnis (Jordan and Seale, 1905)
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D III, IX - X, 7 - 9; A I - II, 6 - 8; P1 9 - 10; P2 I, 2; LLp 9 (10 in total, 1 on base of caudal fin). Body notably compressed. Lachrymal with 2 strong spines. Preopercle having 4 spines; lowermost small. Vomerine teeth present. Gill membrane broadly united to isthmus. Dorsal fin origin above near middle of eye. First dorsal spine stout and strong. Membrane between third and fourth dorsal spines deeply concaved. Head and body lacking scales, except for tube-like lateral line scales. Color: body and head brownish or creamish, having or lacking brown spots; pectoral fin with dark band posteriorly; posterior margin of caudal fin clear. Size: maximum standard length about 2.1 cm. Distribution: distributed in Indo-West Pacific, from southeast India, South China Sea near Hong Kong, and Gulf of Thailand. Remarks: presumed to inhabit interstices on rocky and coral-rubble bottoms, bottoms with coralline algae, or among vegetation.
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