766 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



Hancock Stations: 1274-41, Point Hueneme, 30 fms, and 1292-41, 

 Santa Rosa Island, 28 fms, southern California. Also collected by the 

 writer at low tide. Corona del Mar, southern California. 



Barentsia discreta (Busk), 1886 

 Plate 82, fig. 8 



Ascopodaria discreta Busk, 1886:44. 

 Pedicellina australis Jullien, 1888:13. 

 Barentsia timida Verrill, 1900:594. 

 Barentsia discreta, Osburn, 1912:214; 1940:327. 

 Barentsia discreta, Harmer, 1915:29. 

 Barentsia discreta, Marcus, 1937:15. 

 Ascopodaria misakiensis Oka, 1890:234. 

 Barentsia misakiensis. Oka, 1895:76. 



The zoarium consists of a slender creeping stolon and erect slender 

 zoids which may reach a total height of 3 mm, but usually range between 

 1.0 and 2 mm. The variation in height is almost entirely in the length 

 of the slender stalk. The muscular basal bulb is moderately large, 

 averaging about 0.50 mm high by 0.18 mm in width; the slender stalk 

 from less than 1.0 mm to more than 2 mm; the calyx in our largest 

 specimens measures 0.78 mm in height by 0.60 mm in width, but it is 

 often much smaller. The slender stalk is straight, widening slightly and 

 gradually upward, and is especially characterized by the large number 

 of "perforations" of the inner layer of the stalk. The stalk is rarely 

 jointed, but simple joints sometimes occur to the number of 2 or 3. 

 Harmer states that the tentacle number is "about 20-24," but in smaller 

 calyxes the number may be as few as 14. 



It is a widely distributed species, occurring around the world in 

 tropical and temperate waters. On the Atlantic coast it occurs from 

 Cape Cod to Brazil, and Jullien described his Pedicellina australis from 

 Cape Horn. Oka had it from near Tokyo, Japan, and Harmer from 

 the East Indies. It has not been previously known from the Pacific 

 coast, except for Waters' record at Magellanes, Chili. 



Hancock Stations: 391-35, Lobos de Afuera Islands, Peru, 6°55'40''S, 

 shore collection; 401-35, Mantua Bay, Ecuador, 1 fm ; 1217-40, Point 

 Fermin, California, shore collection, 33°42'30"N, and 1232-41, off San 

 Pedro Breakwater, 17 fms, California. Also on piles of docks at Corona 

 del Mar (R. C. Osburn) and Upper Newport Bay, shallow water, 

 (J. D. Soule), southern California. 



