122 



XLII— SCOMBERESOCIDS. 



EXOCGETUS, Artedi. 



E. Mesogasler, 



Flying Fish. 



Elongated, almost cylindrical, flattened above, tapering 

 towards the tail; head smooth, triangular. Scales thick and 

 easily ruhhed off; on each side of the body is a row of ridged 

 ones, which extend from the lower edge of the gilt-covers to 

 the tail. Eyes large, witli a moderate depression between 

 them, and three small pores on each side, and with channelled 

 lines along the back. The dorsal fin commences over the ven- 

 trals; the pectorals with fifteen branched rays; the anal 

 longer than high; the caudal deeply lunate, with its lower 

 lobe much longer. Length, 12 inches. 



Color dark greenish, or bluish, above; beneath silvery 

 white. Length 10 — 12 inches. 



Fin-rays;— D. 14; P. 15; V. 6; A. 8. 



E. rnesogaster, Mitch. Trans. Lit. & Philos. Soc. N. Y.,I. 

 p. 448, pi. 5, fig. 3. 



E. novehoracensis , DeKay, New York Fauna, p, 230. 



Occurs at the mouth of the Potomac River, and in the 

 soutbern part of Chesapeake Bay. 



Acad. Coll. 



HEMIRHAMPHUS, Cuv. 



H. roberti, 



Long and slender, head contained two and three-fourth 

 times in the length af the body, excluding tlie tail-fin; lower 

 jaw five and a-half times as long as the upper. Back dark 

 greenish, sides witli a well-defined silvery band. Length, 6 

 to 10 inches. 



Fin-rays:— D. 15; P. 13; V. 6; A. 16; C. 18. 



H, Toberti, Cuv. & Val. XIX, p. 24; Guenther, Cat. 

 British Museum, vol. VI, p. 263. 



Obtained on the bay side of St. Mary's county in August. 

 It swims in shoals, and seems to be common in that region. 



Acad. Coll. 



