170 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



the east coast of Japan north to 50° north latitude, from the central 

 equatorial Pacific Ocean, from the eastern Pacific Ocean between 40° 

 south latitude and 30° north latitude. Our collections give additional 

 localities — the West Indies and the Pacific coast of North America 

 from California into Bering Sea. 



Salpa fusiformis, form aspera. This form, which in our collections 

 is more abundant than the smooth form, has been reported from the 

 eastern Atlantic Ocean from 50° south latitude to 20° north latitude, 

 from the northeastern, the northwestern, and the extreme southern 

 Indian Ocean, from the East Indies, from between Japan and Kam- 

 chatka, from the Straits of Magellan, and the eastern Pacific Ocean 

 from 40° south latitude to 15° north latitude, and from the southern 

 California coast. Our collections add localities off the eastern coast 

 of North America from Cape Hatteras to Halifax, Nova Scotia, and 

 in the eastern Pacific Ocean from Hawaii to the central California 

 coast and north to Puget Sound. Our collections also include many 

 specimens intermediate between the smooth form and the fully devel- 

 oped asperate type. These are from the eastern and western coasts 

 of the United States. 



Salpa maxima, one of the earlier known species, has been reported 

 from the whole eastern and southern Atlantic Ocean, from the whole 

 Mediterranean Sea, from the southern Indian Ocean both east and 

 west, from Cape Horn, and off the coast of Chile. Our collections add 

 localities as follows: the western north Atlantic Ocean, off South 

 Carolina and off Chesapeake Bay, the eastern Pacific Ocean between 

 Hawaii and California and along the coast from San Francisco to 

 Bering Sea, and the western Pacific Ocean (Philippine waters). 



Salpa maxima, variety tuberculata, is a new variety collected by 

 the Bureau of Fisheries' steamer Albatross in Philippine waters. 



Thalia democratica, the most abundant of the Salpidae, is also very 

 widely distributed, having been reported from all tropical and tem- 

 perate seas except the eastern Mediterranean Sea, West Indian waters 

 and the northern Pacific Ocean north of 30° nortli latitude. Our col- 

 lections add the Gulf of Mexico (west coast of Florida), the Carribean 

 coast of the Isthmus of Panama, the Atlantic coast of the southern 

 United States (off Cape Hatteras), and the Hawaiian Islands. The 

 prevalent Atlantic form differs from the more common Philippine 

 type. 



Thalia longicauda, though known since Quoy and Gaimard's de- 

 scription (1826-1834), and though sometimes very abundant when 

 found, has been reported but seldom and from but few stations. 

 Traustedt (1885) reports it from the southeastern Atlantic Ocean and 

 from the southwestern Indian Ocean. Apstein (1906, b) reports it 

 from the southeastern Atlantic Ocean, from the southwestern and 

 central Indian Ocean, and from the east coast of Australia. The 

 species is not found in our collections. 



