42 PROCEEDINGS OP THE NATIONAL MUSEUM VOL. 72 



This species differs from Dendroheania flabellata Gray, 1847, in the 

 presence of numerous zooecial series on the branches and in the pres- 

 ence of four to six lateral spines in addition to the pair of distal 

 spines. 



It differs from D. murrayana Johnston, 1847, in its much wider 

 fronds (3 to 4 mm.), in its larger spines, in the interopesial position 

 of the avicularium, in the different form of the avicularium, in the 

 absence of a dorsal sinuosity on the avicularium, and in the mandi- 

 ble placed higher and never extending beyond the peduncule of the 

 avicularium. 



Occurrence.- — Albatross Station D. 2354, east of Yucatan; 20° 59' 

 30'' N.; 86° 23' 45" W.; 130 fms.; coral. 



Cotypes.—Csit. No. 7487, U.S.N.M. 



Genus HALOPHILA Busk, 1852 



HALOPHILA JOHNSTONIAE Gray, 1843 



Plate 4, Figure 12 



1872. Halophila johnstoniae Smitt, Floridan Bryozoa. Kongl. Svenska 

 Vetenskaps-AkademieiiS Handlingar, vol. 10, p. 17, pi. 5, fig. 47. 



1889. Bugula johnstoniae Jelly, A synonymic catalogue of marine Bryozoa, 



p. 25. (Bibliography.) 



1890. Halophila johnstoniae Kirkpatkick, Hydroida and Polyzoa. Collec- 



tion made in Torres Strait, Scientific Proceedings Royal Dublin 

 Society, new ser., vol. 6, p. 611. 

 1926. Halophila johnstoniae Harmee, Polyzoa " Siboga " Expedition, p. 

 449, pi. 30, fig. 14, pi. 31, figs. 19-21. (Ovicell.) 



Our specimens are rare but they were ovicelled. 



Desiccation deforms many of the cells; however, our photograph 

 shows that the essential characters are still quite visible, permitting 

 identification. Preparations in Canada balsam show the zooecial 

 form better. 



Harmer, 1926, believes that two species have been confused under 

 this name. He reduces considerably Miss Jelley's bibliography and 

 thinks that Ortman's species of 1890 is (?) his Bugula longicauda. 



Our specimens correspond rigorously to the figure of Smitt, 1872. 

 As we do not have the necessary elements for comparison, we are not 

 able to modify the synonymy. 



The genus HalopMla may be provisionally preserved, as the ovicell 

 now known is somewhat divergent from typical Bugula. It is deprived 

 of avJcularia. 



Occurrence.— Albatross Station D. 2405, Gulf of Mexico; 28° 35' 

 00" N.; 85° 02' 00" W.; 30 fms.; gray sand, broken coral. 



Geographic distribution. — Pacific : New Zealand (Gray) ; Bass Strait 

 (Busk) and Torres Strait, Australia, 5-11 fathoms (Kirkpatrick) ; 

 N. Celebes, 80 meters (Harmer). 



Plesioty pes. —Cat. No. 7510, U.S.N.M. 



