Jordan and Evermann. Fishes of North America. 765 



n n dial plates weakly keeled in young, the keels apparently disappearing 

 ir. adults. Angle of belly less acute than in 8. californiense ; the keel 

 sometimes wanting. Dorsal fin shorter than head, covering 1 + 7 rings; 

 caudal pouch covering about 19 rings. Otherwise essentially as in S. cali- 

 fornlense. Length 6 inches. San Francisco to San Diego, generally 

 common along the sandy shores. (AeTrrdf, slender; /ywy^of, snout.) 



Syngnathns brerimstris, GiRAKD, Proc. Ac. Nat. Sci. Phila., 1854, 156, San Diego; name 



preoccupied. 

 Synynalhus arundinaceus, GIRARD, Pac. K. R. Survey, Fishes, x, 346, 1858, Coast of California; 



specimens with nuchal plates keeled. 

 Syngnathns dimidiaius, GILL, Proc. Ac. Nat. Sci. Phila., 1862, 284, San Diego; substitute for 



brevirostris, preoccupied; specimens with short snout, scarcely longer than rest of head. 

 Syngnathns leptorhynchus, GIRARD, Proc. Ac. Nat. Sci. Phila., 1854, 156, San Diego. 

 Siphostoma leptorhynchus, JORDAN & GILBERT, Synopsis, 384, 1883; SWAIN, Proc. U. S. Nat. Mus. 



1882, 311. 



1115. SIPHOSTOMA FISTULATUM (Peters). 



Rings 20 + 41. Dorsal 37, on 1 -f 7 rings. Snout twice as long as the 

 distance of the posterior end of opercle from the orbit, and but little 

 higher than broad. Supraorbital ridges continued on the crown and 

 convergent. Opercle with a keel on its anterior half, and with radiating 

 stria. The entire head leathery, rough. Shields without spines. Lateral 

 line passing into the upper caudal edge. Tail twice as long as the trunk 

 (without head). Pouch on 21 caudal rings. (Peters.) Puerto Cabello; 

 not seen by us. (fistula, a tube.) 



Syngnathus fislidatns, PETERS, Mouatsber. Ak. Wiss. Berk., 456, 1868, Puerto Cabello. 

 Siphostoma fistulaturn, GATHER, Cat., vm, 161, 1870. 



1116. SIPHOSTOMA BARBARA, Swain. 



Rings 18 -f 31. Dorsal rays 34, the fin inserted on 1 -f 7 rings. Ten 

 rings on the tail behind the caudal pouch. Head 7| in length; base 

 of dorsal equal to head. Distance from snout to dorsal 2i in length; 

 caudal pouch 2? in length of body; tail behind caudal pouch 6 times. 

 Body unusually stout, with short head, short snout, and short tail, the 

 general appearance being much like S. calif orniense, but all the parts con- 

 tracted. Snout short, compressed, just as long as the rest of the head 

 (male), its upper edge with a sharp, low keel, which is higher than in S. 

 calif orniense. Top of head without keel. Opercle striate, with trace of 

 a keel at base. Keels of body not very sharp, the interspaces between 

 the angles scarcely concave ; lateral line not continuous with the upper 

 edge of the tail; belly with a slight median keel. Dorsal fin low. Color 

 blackish, with fine pale vermiculations; top of head and neck with wavy 

 longitudinal streaks; caudal dusky; dorsal somewhat mottled; a dusky 

 blotch before eye. Santa Barbara; one specimen known, (barbarw, from 

 Santa Barbara, the type locality.) 



Siphosloma barbarse, SWAIN, Proc. U. S. Nat. Mus., 1884, 238, Santa Barbara. (Type, No. 31253. 



Coll. Andrea Larco.) 

 Siphostoma bairdianum, SWAIN, Proc. U. S. Nat. Mus., 1882, 311; not of DUMERIL; JORDAN <fe GIL- 



BERT, Synopsis, 905, 1883. 



