I'i'. BLEEKEEIA. 387 



5. Ammodytes personatus. 

 Girard in U. S. Pacif. Jt. E. Exped. Fish. p. 139. 

 B. 7. D. 55. A. 25. 

 The length of the head is one-fifth of the total, the diameter of 

 the eye one -fifth of the length of the head. Margin of the dorsal 

 even. Vomer not armed. (Oir.) 

 Cape Flattery, W. T. 



6. Ammodytes dubius. 



Ammodytes tobianus, Fabr. Faun. Groenl. p. 140 (not L.). 

 ? Ammodytes tobianus, Faher, Fische Isl. p. 63. 



Ammodytes diibius, Reinh. Dansk. Vidensk. Sclsk. Afliandl. vii. 1838, 

 p. 132. 



D. 64-67. A. 33-36. 

 Skin with about 150 oblique, very distinct transverse folds. The 

 height of the body equals the length of the mandibula, which is 

 contained twice and a third in the length of the head ; the latter is 

 six times and a half in the total length. The dorsal fin commences 

 above the middle of the posterior third of the pectoral, and its upper 

 margin is even. Intermaxillary protractile ; vomer not armed. 



North America. 

 a. Adult. Boston. Presented by W. Winstone, Esq. 



14. BLEEKERIA. 

 Body elongate, low, compressed, covered with scales of moderate 

 size. One lateral line ; skin without longitudinal folds. One long 

 dorsal ; anal of moderate length. Jaws and palate without teeth ; 

 lower jaw prominent. Gill-opening very wide, the gill-membranes 

 not united ; branchiostegals six ; giUs four, a cleft behind the fourth ; 

 pseudobranchiae composed of lamella} ; air-bladder none. 

 Madras. 



1. Bleekeria kallolepis. 

 B. 6. D. 40. A. 15. L. lat. 100. L. transv. 3/14. 

 Back olive-coloured, sides silvery. 

 Madras. 

 a. Fifty-five lines long. Presented by T. C. Jerdon, Esq. 



Description. — Head and body strongly compressed. The depth of 

 the body is less than one-half of the length of the head, which is 

 one-fifth of the total. Form of the head as in Ammodytes, but with 

 a larger eye, the diameter of which is contained five times and a half 

 in the length of the head. Lower jaw very prominent ; the maxillary 

 extends nearly to the front margin of the orbit. I am unable to 

 detect any teeth either in the jaws or on the palate. The inter- 

 maxillary is protractile, and the maxillary terminates in a small spine 

 superiorly. Nostrils distant, situated in the middle of the length of 

 the snout. Interorbital space narrow. Cheeks and opercles naked ; 

 the suboperculum is broad, striated and emarginate posteriorly. 



2c2 



