190 University of California Publications. [Zoology 



time, specimens having been taken in the winter of 1899 by the 

 senior author. Eighteen gill rakers are attributed to the hori- 

 zontal limb of the first branchial arch by Jordan and Evermann. 

 They also describe the maxillary as not reaching the eye. There 

 are eight or nine gill rakers, and the maxillarj^ extends to the 

 posterior border of the eye. 



70. Scomberomorus sierra Jordan and Starks. 



SPANISH MACKEREL. 



(Jordan and Evermann. 1896, I. p. 874.) 



Recorded by Eigenmann (1889, p. 126) from Cortez Banks 

 under the name of Scomheronionis niaodatxs. It is known south- 

 ward to Panama and the Galapagos Islands (Snodgrass and 

 Heller, 1905, p. 361). Jordan and Evermann (1896, I, p. 874), 

 under the description of Scomheronurus maculatns, state that the 

 species is found on both coasts of North America. If S. sierra is 

 a distinct species »S'. niaeulatiis is confined to the Atlantic coast. 



Family XIPHIID.E. 

 71. Xiphias gladius Linn^ns. 



COMMON SWORDFISII. 



(Jordan and Evei'mann, 1896, I. p. 894.) 



The fishermen at San Diego report this fish to be common in 

 the summer time in the open sea. A specimen twelve feet in 

 length was taken by the fishermen and put on exhibition in San 

 Diego. Permission was obtained to describe it as it lay, but the 

 anal and under parts could not be examined. It had been evis- 

 cerated and the depth much decreased. 



Head from tip of mandible 4 in length to tips of middle caudal 

 rays; sword from nostril 214. Width of sword opposite tip of 

 mandible 2% in post orbital part of head ; at middle of sword ■% 

 of diameter of eye. Mandible to posterior angle of mouth 3I/2 

 times diameter of eye. Eye 2% in postorbital part of head. 

 Interorbital space 11 in length to tips of middle caudal rays. 

 Caudal keels very w4de, the distance across them 5% in same dis- 

 tance ; upper caudal lobe 5i/o ; pectoral 41/3. Height of anterior 



