184 University of California Publications. [Zoology 



southward to San Bartolome Bay, Lower California (Gilbert, 

 MS. notes). It has a longer dorsal than other Southern Califor- 

 nia pipe fishes ; 39 to 46 on 1 -j- 9 rings. 



51. Syng-nathus punctipinnis ((1111). 

 {Si'phostoma2)nnctiijin}ic Jordan and Evermann, 1896, I, p. 763). 

 Known only from the types taken at San Diego in 1862. 



52. Syngnathus leptorhynchus Girard. 



THE COMMON PIPE FISH. 



{Siphostoma leptorliyncltus, Jordan and Evermann, 1896, I, p. 

 764.) 



Exceedingly abundant ; several hundred were taken at one 

 haul of the seine from among the ell-grass at low tide near the 

 head of San Diego Bay, and specimens were taken in all parts of 

 the bay at nearly ever^y seine haul. 



In January nearly all the brood-pouches were full of eggs in 

 an advanced state of incubation ; a very few were empty. At the 

 middle of May some brood-pouches contained eggs, some con- 

 tained young with the yolk sack still attached, and many con- 

 tained young that were probably about ready to be expelled ; so 

 it is probable that the breeding season is extended over a large 

 part of the year. This species is abundant northward to San 

 Francisco Bay. 



53. Syngnathus auliscus (Swain). 



PIPEFISH. 



{Siphostoma auliscus, Jordan and Evermann, 1896, I, p. 767.) 



This species is generally distri])uted in San Diego Bay, but is 

 not so common in salt water as Hy^ignafJius leptorhynchus. In 

 the sloughs which receive fresh watei". however, it is apparently 

 more connnon. 



Specimens from San Diego and San Pedro agree fairly well 

 with the description of the typical specimens (Swain 1882, p. 

 310), but show a greater degree of variation. The head is con- 

 tained from 9 to 9iy4 in the entire length without caudal ; the 

 dorsal has from 29 to 33 rays, and extends over 1 -f- 6, or -\- 7, 



