ADDENDA — 58. SYNGNATHIDiE — SIPHOSTOMA. 905 
Page 384. After SipJiostoma louismuce add : 
615 (6). )S. floridse J. & G. 
Dark greeiij ■with, paler streaks 5 tail faintly barred. Body slender 5 
snout long, one-third longer than rest of head j nape and opercles with- 
out keel; dorsal fin on 1-f 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 SipJiostoma californiense add: 
616 (1>.) S. g^riseolineatiim (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. 
Snofit in head If times. Dorsal rays 36 to 41 ; rings 18 to 19+39 to 42. 
L. 10 inches. San Francisco to Puget Sound. 
(SiingnaiJius griseoHneatus Ayres, Proc. Cal. Ac. Nat. Sci. 1854, 14, etc.) 
616 (c). S. baii'dianiim (Dnm.) Swain. 
Blackish, with 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 fin low. Bings 18 + 31. D. 34, placed 
on 1 + 7 rings. Ten rings on tail behind caudal pduch. Head 7f in 
length. Santa Barbara, California. 
Sgngnathiis bairdiamis Dnm6ril, 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. 
Mus. 1882.) 
Page 384. The species described in the foot-note as SqjJiostoma dimid- 
iafnni is a valid species, and should stand as — 
617 (6). S. auliscus Swain.* 
SpngnatJins dimidiatus Gill was based on short-nosed examples of 8, 
leptorJiyncJius. 
* Swain, Proc. U. S. Nat. Mns. 1882. 
The following analysis of the species of Siphostoma 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. 
h. Breast-shields not covered bj' 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 Zatuopis. 
bb. Breast-shields covered by soft skin; lower jaw included ; dorsal rays 41; rings 
19 + 39 PCKCTIPIXNE. 
