160 University of Washington Publications in Biology [Vol. 2. 



Family 48. Syngnathidae. Pipefishes 



Range: Southeastern Alaska to Monterey Bay, Marine. Common. 



Pipefish 153. Syngnathus griseo-lineatns Ayres 



Family 49. Atherinidae. Silversides 



la. Teeth bifid at tip, forked, on premaxillaries ; about 63 scales in the lateral 

 series. Range: Northern Oregon to southern California. Marine. Com- 

 mon. 

 Bay-smelt 154. Atherinops affinis oregonia Jordan 



lb. Teeth all normal, the tips not divided into horns; about 75 scales in a 

 lateral series. Range: Northern Oregon to Lower California. Marine. 

 Common. 

 Jack Smelt 155. Atherinopsis californicnsis calif omicnsis Girard 



Family 50. Sphyraenidae. Barracudas 



Range: Puget Sound to Gulf of California. Marine. Common southward. 

 Barracuda 156. Sphyracna argentea Girard 



Family 51. Scombridae. Mackerels 



Range : Prince William Sound, Alaska to Lower California. Marine. 

 Common southward. 

 Pacific Mackerel 157. Pneumatophorus diego (Ayres) 



Family 52. Thunnidae. Tunny and Albacore 



la. Pectoral fin reaching to anal fin or beyond ; pectoral fin longer than the 

 head. Range : Puget Sound to Lower California. Marine. Common south- 

 ward. 

 Albacore 158. Gcrmo alalunga (Gmelin) 



lb. Pectoral fin not reaching to anal fin and shorter than the head. 



2a. Color markings of longitudinal stripes on upper half of body; dorsal of 

 about XVIII-I, 12 and 8 or 9 finlets; anal II. 11 and 6 finlets. Range: 

 Puget Sound to Chile. Marine. Common southward. 

 Bonito. Skipjack 159. Sarda chilcnsis (Cuvier and Valenciennes) 



2b. Color of body without conspicuous stripes ; dorsal XII to XV-I, 13 and 

 8 to 10 finlets ; anal I, 12 and 8 finlets. Range : Oregon to Guadalupe 

 Islands. Marine. Common southward. 

 Tuna. Bluefin Tuna 160. Thunnus thynnus (Linnaeus) 



Family 53. Trichiuridae. Hairtails. Cutlass Fishes 



Range : North Atlantic and North Pacific Oceans. Marine. Not common. 



Cutlassfish. Hairtail 



161. Benthodesmus atlanticus Goode and Bean 



Family 54. Bramidae. Pomfret 



Range : Alaska to Santa Catalina Island. Marine. Not common. 



Pomfret 162. Bratna raii (Bloch) 



