1920.] NATURAL SCIENCES OF PHILADELPHIA. 401 



Pogonichthys microlepidotus (Girard). Mr. F. S. Curtis forwarded 

 an example of this and the following two species from Arrayo Crista 

 Blanca at Livermore, which were received in September, 1912. He 

 says, "in the winter and early spring this stream flows into the Bay 

 of San Francisco, but in the smiimer is only a series of pools. The 

 head of the stream is coarse gravel, several feet deep, and the water 

 flows under gi'ound between the deep pools. None of the pools are 

 more than four feet deep, or usually only about two. The fish were 

 caught in strong sulphur water, as just above the pool a strong 

 sulphur-spring boiled up in the middle of the creek. This is so 

 strong that it fills the air with the odor, and the stones, etc., in the 

 pool are all coated with sulphur. About a dozen sculpins [Coitus 

 gulosus (Girard)] 1| to 2| inches long were caught, and were 

 smooth. Those taken last year at Niles were prickly, with the sides 

 rough. Together with the suckers [Catostomus occidentalis Ayres] 

 and Sacramento perch [Archo-plites interruptus (Girard)] they are 

 about the only fish found here. The game-wardens are glad to have 

 us take the dace as they are very destructive to the trout eggs and 

 fry, and in fact the chief enemies they have in these streams. " 



Ptychocheilus grandis (Ayres) . 



Myloleucus sy7nmetricus (Baird and Girard). 



Atherinopsis calijorniensis Girard. 



Cypselurus californicus (Cooper). Popular bait for tuna at Santa 

 Catalina. Retailed for 10 cents each, or prices varied with abund- 

 ance. Messrs Rehn and Hebard kindly fm-nished the note on this 

 species and the following six. 



Auxis thazard (Lacepede). Reported occasionally at Santa Cata- 

 lina. One seen by Mr. Rehn 4| feet long a mounted dry specimen. 

 Called "Japanese tuna" and "short-finned tuna." 



Thunnus thynnus (Linne). Fom* seen at Santa Catalina and a 

 number of mounted examples. Previously, or ten days before Mr. 

 Rehn's stay, 15 to 20 were taken, and many more were reported 

 since. Some were upwards of 168 lbs., and one of such size had a 

 large piece bitten out by a shark. The examples Mr. Rehn saw 

 ranged from 110 to 125 lbs. They were captured altogether by rod 

 and reel anglers, with flying-fish as bait. 



Germo alatu?iga (Gmelin). Called "albacore" and "long-finned 

 tuna." Abundant game fish at Santa Catalina. Mr. Rehn took 

 two of 18 lbs., one of 20 lbs and one of 27 lbs. The species attains 

 a weight of 50 lbs. 



