264 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



than the rest of the bead, its upper edge with a low sharp keel ; top of 

 head without keel ; supraocular ridge a little elevated, the region be- 

 tween eyes concave ; opercle striate, without median keel. Lnteral line 

 not continuous with upper edge of tail. Dorsal fin on one body-ring 

 and C or 7 caudal rings, the distance from its insertion to the tip of the 

 snout li to If in total length. Head 5J to Gi in length. Dorsal rays 

 27. Eings 17 or 18 -|- 31 or 32. Caudal pouch in the male, covering 

 about 18 rings. Tail longer than trunk, If in total. 



Color in life, dark green ; tail with faint darker bars broader than the 

 interspaces ; sides of body with horizontal pale streaks or vermicula- 

 tions; sides of tail with some round pale spots, snout dusky, marbled or 

 barred on side with paler; lower part of opercle nearly plain. Dorsal 

 translucent, yellowish at base ; caudal yellow, dusky at tip. 



Many specimens, the longest about seven inches in length, were taken 

 with the seine in sea-wrack and algie in Pensacola Bay, especially in the 

 Laguna Grande. In oar paper on the Fishes of Beaufort Harbor (Proc. 

 U. S. Nat. Mus. 1878, 308) we have recorded a ^^ Siphonostomafuscum^ 

 from that locality. The specimens referred to under that name belong 

 to Slphostoma louisiatKc chietiy ; among them are examples of the pres- 

 ent species. 



40. Siphostoma afHue (Gthr.) J. & G. P. (30827.) 



(S'q>hostoma sp. Jordan, Proc. Ac. Nat. Sci. Phila. 1880, 22; Saint John's River.) 



Abundant in Pensacola Bay in the same localities as the preceding, 

 from which it is readily distinguished by the much shorter snout and 

 the peculiar coloration. 



Color in life: Females deep olive-green, varying to brown, blackish, 

 or slightly reddish, according to the character of the surroundings ; 

 females with a black keel on tbe belly, which is obsolete in the male. 

 Dark color of the back forming about 15 dark cross-bars, very faint and 

 much wider than the interspaces. Plates of anterior parts of body, 

 each with two narrow vertical stripes of shining silvery, very conspicu- 

 ous in life. Sides of head mottled, especially on lower half of opercle. 

 Snout daik above, abruptly paler below. Dorsal dark, like the body, 

 with narrow dark oblique paler streaks formed of small pale spots. Cau- 

 dal and anal dusky. Males olivaceous, mottled with darker, the vertical 

 silvery streaks absent. Dorsal rays 28 to 31. Eings 10 -f 32. 



Specimens of this species from Saint John's Eiver, Florida, are in our 

 collection. 



41. Siphostoma zatropis sp. nov. P. (30865.) 



A single specimen, 5g inches long, obtained from the mouth of a Eed 

 Snapper. 



Color brown, marbled with darker and with reddish. Back and sides 

 with ten broad dark bands, the anterior portion of each band paler 

 than the posterior; all the bands broader than the whitish interspaces. 



