NO. 2 JSBURN: eastern pacific BRYOZOA — CHEILOSTOMATA 421 



the fertile zooecia the peristome develops across the front of the ovicell 

 and continues to form an erect tube similar to that of the infertile 

 zooecia. The aperture and lyrula can only be observed on very young 

 zooecia or after dissection. 



Several types of avicularia are present: 1, small short-spatulate ones 

 on the front, variously situated and oriented ; 2, giant broad-spatulate, 

 also on the front, usually directed backward ; 3, small pointed or sub- 

 spatulate ones on one or both sides of the peristome ; 4, a large pointed 

 one often extending upward on the side of the peristome, the rostrum 

 elevated and pointing at nearly a right angle from the peristomial wall. 



The ovicell is large, 0.40 mm wide, resting on the succeeding zooe- 

 cium, globular, its base surrounded by a low, smooth collar, the front 

 evenly perforated with small pores ; the peristome continues around the 

 border of the orifice without a break to complete the high tube. 



In certain respects this species appears to be close to S. labellum 

 Canu and Bassler (1928:116) from the Gulf of Mexico, but the great 

 height of the peristomes, the lack of oral spines, the much larger primary 

 aperture and the nature of the peristomial avicularia are sufficient to 

 differentiate it. It has even more resemblance to S. projecta Okada and 

 Mawatari (1936:66) from Japan, but the peristomial rim is complete, 

 without oral spines, the peristomial avicularia do not have a serrated 

 rostrum, the areolar pores are inconspicuous, and the ovicell appears to 

 be much larger. 



Type, AHF no. 90. 



Type locality, Hancock Station 1978-50, south end of Ranger Bank, 

 west of Lower California, 28°26'45''N, 115°31'30"W, 71 fms. Also 

 Station 1271-41, west of Point Dume, southern California, 34°00'20''N, 

 119°01'30"W, 48 fms. Also oil Rocky Point, California, 45 fms, 

 Earl Fox, collector. 



? Smittia californiensis Robertson, 1908:303 



What this species may be has puzzled me greatly as I am completely 

 unable to interpret Dr. Robertson's description in terms of any Smittinid 

 species, and unfortunately her types seem to have been lost. She refers 

 to it as common along the California coast from between tide marks to 

 50 fathoms. Such expressions as: "a thick, coarse, spiny crust of a dark 

 gray color" ; "primary orifice orbicular, closed by a dark-colored oper- 

 culum" ; and "interspersed between the zooecia are large spatulate 

 avicularia," certainly do not apply to any local species of the Smittinidae. 

 However, they do apply to Holoporella brunnea Hincks, which she 



