162 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. xxviir. 



As the illustrations of Ileinerora'te.s are pul)lished in a work to be 

 found in very few libraries, figures representing the entire fish, the 

 head from above and laterally (with mouth opened to show jaws), and 

 a scale are reproduced. The originals were publislied in the '' Ichthy- 

 ology of the Voyage of H. M. S. Jireh>/s and T<'rr<>i\^'' etc., by Sir John 

 Richardson, Isi-i-lSiS, on plate 54. 



Fig. 3.— Ammodytes tubianus. (After Bcnecke.) 



The ilhistrations of the typical Ammodytids are derived from the 

 excellent ligures in Benecke's Fische, Fischerie und Fischzucht in Ost- 

 und Westpreussen (p. 100, tig. 80, and p. 101, lig. "iV)^ reproduced also in 

 Smitt's Scandinavian Fishes (pp. 570, 571). That of Ernhollclithys was 

 originally published in the Proceedings of the United States National 





Fig. 4.— Hyperoplus lanceolatus. (After Beuecke. ) 



Museum for ltH)2 (XXV, p. 884), and reproduced in the Proceedings 

 for 1908 (XXVI, p. 693). 



The figures of the typical Ammodytids are added to show how simi- 

 lar they are to EDiholicJitJiys in form, the development of the jaws, 

 characteristic opercular apparatus, and form and proportions of the 

 tins. In all these respects they appear to contrast with the Cobitop- 



