ADDENDA 58. SYNGNATHID^ SIPHOSTOMA. 905 



Page 384. After Siphostoma louisiance add : 



615 (&). S. floridae J. & G. 



Dark green, with paler streaks; tail faintly barred. Body slender; 

 snout long, one-third longer than rest of head ; nape and opercles with- 

 out keel; dorsal fin on 1 + 6 or 7 rings. Tail one-fifth longer than trunk ; 

 rings 18+31. Caudal pouch in male on 18 rings. Head about 6; D. 

 27 ; L. 8 inches. North Carolina to Western Florida ; abundant at Pen- 

 sacola and Beaufort. 



(Jordan & Gilbert, Proc. U. S. Nat. Mus. 1882.) 



Page 384. After Siphostoma californiense add : 



616 (&.) S. griseolineatum (Ayres) J. & G. 



Very close to S. californiense, but the size smaller, the snout shorter, 

 and the number of rays and rings different. Dorsal covering 1+9 rings. 

 Snout in head If times. Dorsal rays 36 to 41 ; rings 18 to 19+39 to 42. 

 L. 10 inches. San Francisco to Puget Sound. 



(Si/ngnatfuis griseoUneatus Ayres, Proc. Cal. Ac. Nat. Sci. 1854, 14, etc.) 



616 (c). S. bairdiaiium (Durn.) Swain. 



Blackish, Avith pale lines; fins mottled. Body unusually stout, with 

 short head and tail. Snout short, compressed, with a sharp keel above, 

 in the male just as long as head, probably longer in female. Nape and 

 opercle without keel. Dorsal tin low. Rings 18 + 31. D. 34, placed 

 on 1 + 7 rings. Ten rings on tail behind caudal pouch. Head 7f in 

 length. Santa Barbara, California. 



($ Syngnathus bairdicntus Durueril, Hist. Nat. Poiss. ii, 1870, 574; "Coast of Mexico, 

 near California" (dorsal said to be inserted on 3 + 6 rings); Swain, Proc. U. S. Nat. 

 MIIR. 1882.) 



Page 384. The species described in the foot-note as Siphostoma dimid- 

 iatum is a valid species, and should stand as 



617 (&). S. auliscus Swain.* 



Syngnatlius dimidlatus Gill was based on short-nosed examples of 8. 

 leptorhynchu!*. 



* Swain, Proc. U. S. Nat. Mus. 1882. 



The following analysis of the species of Sipliostoma found in the United States is 

 given by Mr. Swain (Review of the North American Pipe-fishes, 1. c.): 

 a. Top of head strongly carinated. 



b. Breast-shields not covered by soft skin; lower jaw slightly included; opercle 

 with a prominent ridge; snout short; belly concave ; dorsal rays 20, 

 its base covering 1 + 4 rings ; rings 18 + 30 ; body with 12 brown cross- 

 bands ZATROPIS. 



bb. Breast-shields covered by soft skin; lower .jaw included ; dorsal rays 41 ; rings 

 19 _[. 39 PUNCTIPLNNE. 



