414 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



and more erected, and there seems to be a tendency toward a larger 

 number of frontal pores in addition to the areolar pores. 



In its various forms the species is cosmopolitan. In the Eastern Pacific 

 area it has been noted by Hincks, Robertson, O'Donoghue, Canu and 

 Bassler and Hastings, all the way from British Columbia south to the 

 Galapagos Islands. 



Hancock Stations: dredged and collected along shore at more than 

 60 stations from Oregon to the Galapagos Islands. In the collections also 

 are specimens from Point Barrow, Alaska, Arctic Research Laboratory, 

 G. E. MacGinitie, collector; from southern Alaska; and from Puget 

 Sound, Dr. J. L. Mohr, collector. 



Parasmittina jefFreysi (Norman), 1876 

 Plate 49, figs. 5-6 



Lepralia Jeffreysi Norman, 1876 :208. 

 Smittina Jejfreyst, Norman, 1903 :120. 

 Smittina JeffreysiijLcvinsen, 1916:458. 



Zoarium broadly encrusting, or rising into tubular or folded expan- 

 sions which are sometimes branched. The zooecia near the growing edge 

 are moderately large, averaging about 0.65 mm long by 0.40 mm wide, 

 regularly arranged in quincunx, elongate-ovoid with the proximal end 

 usually narrowed between the adjoining zooecia. The frontal is only 

 slightly elevated, a granulated pleurocyst with a row of conspicuous 

 areolar pores. The primary aperture measures about 0.16 mm in either 

 direction, broadest at the proximal end which is nearly straight ; cardelles 

 of moderate size ; the lyrula broad at the base and narrowed toward the 

 tip which is truncate. The peristome is low, slightly higher on the sides, 

 usually exposing the whole of the aperture ; the distal border with 2 to 

 4 evanescent spines. There are two kinds of avicularia; a large triangular 

 one on the front proximal to and at one side of the aperture, the rostrum 

 elevated and the pointed mandible directed forward beside the peristome, 

 frequently wanting, and smaller elliptical avicularia scattered over the 

 front, sometimes numerous, not elevated and variously oriented. 



The ovicell is prominent, rounded, large (0.35 to 0.40 mm wide), 

 the surface granulated like the frontal and bearing 3 (2 to 4) conspicuous 

 pores, each with a slight collar. 



This is a common arctic species known from Spitzbergen to Green- 

 land and south to Labrador. 



Very common at Point Barrow, Alaska, G. E. MacGinitie, collector, 

 Arctic Research Laboratory. Evidently it is circumpolar in distribution. 



