128 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



We have found at Tinagta Pass, Sulu Archipelago, in the vicinity 

 of the Celebes Sea, a species still larger, but the specimens deprived 

 of onychocellaria were not sufficient for description. 

 Occurrence. — 



D. 5574. Simaluc Island, north of Tawi Tawi; 5° 30' 45" N.j 



120° 07' 57" E.; 340 fathoms. 

 D. 5577. Mount Dromedario, north of Tawi Tawi; 5° 20' 36" X. ; 



119° 58' 51" E.; 240 fathoms; crs. S.; 12.4° C. 

 D. 5579. Sibutu Island, Darvel Bay, Borneo; 4° 54' 15" N.; 

 119° 09' 52" E.; 175 fathoms; fine S., co.; 13° C. 

 Cotypes.— Cat. Nos. 7926-7928, U.S.N.M. 



Genus VELUMELLA Canu and Bassler, 1917 



In our studies on the bryozoa of the Gulf of Mexico we have noted 

 that the genus Smittipora Jullien was established on a bad interpre- 

 tation of an incomplete figure, a combination of errors which necessi- 

 tates the suppression of the genus. It is possible that Smitt's figure 

 represents Velumella americana Canu and Bassler but this can not 

 be proved. We are now convinced that opesial polymorphism is the 

 general rule in all the Onychocellae and for that reason we suppress 

 our genus Diplopholeos. 



The recent genotype was badly chosen, but it was the only species 

 known in 1917. It is preferable to add as a second genotype Velu- 

 mella americana Canu and Bassler, 1928, from the Gulf of Mexico, 

 a species easily collected and already well studied. 



The known species of Velumella are listed below: 



Velumella (Eschara) argyrias D'Orbigny, 1852 Cretaceous. 



Velumella (Eschara) callirhoe D'Orbigny, 1852 Cretaceous. 



Velumella (Eschara) chloris D'Orbigny, 1852 Cretaceous. 



Velumella levigata Canu and Bassler, 1920 Eocene. 



Velumella plicata Canu and Bassler, 1920 Eocene. 



Velumella (Diplopholeos) fusiforme Canu and Bassler, 1920 Eocene. 



Velumella (Diplopholeos) sagitellarium Canu and Bassler, 1920. _ Eocene. 



Velumella (Diplopholeos) sagittarium Canu and Bassler, 1920 Eocene. 



Velumella (Diplopholeos) parvuliporum Canu and Bassler, 1920. Eocene. 



Velumella (Diplopholeos) lineatum Canu and Bassler, 1920 Eocene. 



Velumella (Membranipora) depressa MacGillivray, 1895 Miocene. 



Velumella americana Canu and Bassler, 1928 Recent (Gulf of 



Mexico). 



Velumella philippinensis, new species Recent (Phillip- 

 pines). 



Velumella (Onychocella) levinseni Canu and Bassler, 1917 (geno- Recent (locality 

 type). unknown). 



Velumella acutirostris Canu and Bassler, 1928 Recent (Brazil). 



Velumella tuberculata Canu and Bassler, 1928 Recent (Brazil). 



Velumella harmeriana, new name (Smittipora abyssicola Harmer, Recent (Malasia) 

 1926). 



Velumella (Smittipora) cordiformis Harmer, 1926 Recent (Malasia) 



This is an equatorial genus. 



