NO. 3 OSBURN : EASTERN PACIFIC BRYOZOA CYCLOSTOMATA 661 



2. T. lobulata Hassall. Differs from T. lobulata Hincks in having 

 long oblique series of connate zooecia. (Hassall, 1841, pi. X, fig. 2). 

 I think Norman may well have been right (MS. note) in referring it 

 to T. serpens (T. liliacea Pallas). 



3. T. lobulata ? Osburn. Resembles T. lobulata Hincks in its stout 

 zooecia with thick transversely striated walls, and in the arrangement 

 of the zooecia in the colony, separately or in small groups, but not in 

 connate series; and in the depressed ooecia. Differs in its less ramified 

 ovicell with the ooeciopore placed more or less symmetrically at the 

 center of the distal border of the ooecium closer to, and behind rather 

 than beside, a zooecial tube; in the small size of the ooeciostome and in 

 the absence of an out-turned rim to the ooeciostome." (The last item 

 must now be corrected as I have a complete ooeciostome with a slightly 

 out-turned rim. R.C.O.) 



It is a pleasure to be able at last to solve the long-standing problem 

 of the position of the West Atlantic specimens of "T. lobulata" which 

 could not have been done without the careful analysis by Dr. Hastings, 

 to whom I gratefully dedicate the species. 



The species is now known to be distributed on the Atlantic coast from 

 Mount Desert Island, Maine (Osburn, 1933:16); Gaspe (Canada), 

 Hincks Collection (Hastings, in litt., British Museum), and Green- 

 land, "Valorous," 1875, Norman Collection, (Hastings, in litt., British 

 Museum). Now I am able to add the Bering Sea, and the species is 

 certainly high northern and possibly circumpolar in its distribution. 



Type, AHFno. 117. 



Type Locality, Nunivak Island, Bering Sea (a large island off the 

 west coast of Alaska, about 60°N, and 116° W) at 8 to 10 fms, on 

 shell, 4 colonies. Another specimen is marked merely "Behring Sea," 

 on shell. 



Genus PLATONEA Canu and Bassler, 1920 



Platonea Canu and Bassler, 1920:759; 1929:548. 

 Reptotubigera d'Orbigny, 1853:751 (in part). 

 Reptotubigera, Calvet, 1911:4. 

 Reptotubigera, Harmer, 1915:119. 

 Reptotubigera, Okada, 1928:492. 

 Reptotubigera, Borg, 1944:26. 



This genus has been accepted by the above authors to include narrow, 

 fasciculate species that are entirely adnate to the substratum, as described 

 by d'Orbigny. But d'Orbigny made no reference to the ovicell, the first 



