vol. 2,pt. 2.] A TAXONOMIC STUDY OF THE SALPIDAE METCALF. 167 



bakeri; some may have been C. jloridana. The distribution of these 

 two species is therefore uncertain. The collections of the Tiefsee 

 Expedition should be restudied in reference to the distribution of 

 these two species. Our collections show Cyclosalpa hakeri present in 

 Philippine waters, 1,200 miles north of the East Indian region, in 

 which it was found by the Siboga Expedition. 



Cyclosalpa Jloridana has been reported from the northwestern 

 Atlantic Ocean, 400 miles south of Newfoundland and southward 

 (Apstein, 1904, b). Apstein may have included among the specimens 

 reported some Cyclosalpa balceri, which later he confused with C. 

 jloridana. The collections of the Plankton Expedition, as well as 

 those of the German Deep-Sea Expedition, should be restudied with 

 reference to the distribution of these two Cyclosalpas. Some of the 

 specimens collected by the latter expedition and reported by Apstein 

 (1906, b) as Cyclosalpa jloridana were C. balceri; others may have been 

 C. jloridana. The localities given by Apstein include the western 

 Atlantic Ocean east of Bahama and the West Indian Islands; off Cape 

 Verde; the central equatorial Atlantic Ocean; the west coast of Africa 

 at the Equator and near the Cape of Good Hope; also the eastern, 

 central and western Indian Ocean. Our collections add no new 

 localities except to show the species present in the Gulf of Mexico and 

 in the Gulf Stream off the coast of Florida and off the New England 

 coast, and so nearer to the American coast than previous records 

 show. 



Cyclosalpa pinnata, the first discovered and probably the best 

 known of the Salpidae, has been reported from the West Indies and 

 the whole of the North Atlantic Ocean, both east and west, as far 

 north as 56° north latitude, from the western Mediterranean Sea, 

 from the equatorial and southern Atlantic Ocean, both east and west, 

 to 23£° south latitude (off Rio de Janeiro), from the eastern and west- 

 ern Indian Ocean, from the Malay Archipelago, from southeast of 

 Formosa, and from the eastern Pacific Ocean west of Panama. Our 

 collections add localities in Philippine waters, and in the northern 

 Pacific Ocean in Hawaiian waters and off the coasts of Lower Cali- 

 fornia, Oregon, and Alaska as far north as 53° 6' 3" north latitude. 



Cyclosalpa pinnata, subspecies polae, has been known only from the 

 eastern Mediterranean Sea (Sigl, 1912, a and b). It is represented 

 in our collections by three specimens of the solitary form from the 

 Hawaiian Islands. 



Cyclosalpa virgula, has long been known from the western Mediter- 

 ranean Sea. It has been reported more recently from the eastern 

 equatorial Atlantic Ocean (Apstein, 1906, b) and from the central 

 Indian Ocean (Apstein, 1906, b). Our specimens were obtained from 

 the Naples Zoological Station, and were doubtless collected in the 

 western Mediterranean Sea. 



