PIETSCH: OSTEOLOGY AND RELATIONSHIPS OF TETRABRACHIUM 



centra; epural absent; dorsal of three well-devel- 

 oped cephalic spines; membrane between dorsal 

 spines II and III (?); caudal fin rays elongate; two 

 elongate pectoral radials. 



ACKNOWLEDGMENTS 



I thank the following individuals and their 

 institutions for providing material and specimen 

 data: J. R. Paxton (AMS), G. R. Allen (WAM), 

 S. Karnella (USNM), A. Wheeler (BMNH), R 

 Kailola and M. A. Wilson (formerly of KFRS), B. 

 R. Smith (KFRS), K. Hartel (MCZ), R. J. Laven- 

 berg and J. W. Neumann (LACM), M. F. Gomon 

 (NMV), and M. Boeseman (RMNH). Special 

 thanks are extended to Patricia Kailola for pro- 

 viding specimens o^ Lophichthys boschmai, and to 

 two referees who helped to greatly improve the 

 final draft of this paper. An earlier version of the 

 manuscript was critically reviewed by K. M. Howe 

 and S. L. Leipertz, College of Fisheries, University 

 of Washington. 



The work was supported by National Science 

 Foundation Grants DEB 76-82279, DEB 78-26540, 

 and DEB 80-05064, the National Geographic So- 

 ciety, and PHS Biomedical Research Support 

 Grant No. RR-07096 administered through the 

 Graduate School Research Fund of the University 

 of Washington. 



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